CN118631352A - Synaesthesia integrated signal generation system, photon terahertz synaesthesia system and method - Google Patents

Abstract

The invention provides a sense-of-general integrated signal generation system, a photon terahertz sense-of-general integrated signal generation system and a method, wherein the sense-of-general integrated signal generation system comprises: the device comprises a signal generation module and a communication embedded module, wherein the signal generation module is used for generating a linear frequency modulation signal; the communication embedded module is used for determining the idle time width and the idle bandwidth of the linear frequency modulation signal; and generating a baseband digital sense integrated signal according to the linear frequency modulation signal and a plurality of communication subcarrier signals on a frequency domain by combining the idle time width and the idle bandwidth. The system for generating the integrated through sensing signal fully utilizes the idle time width and idle bandwidth of the linear frequency modulation signal, performs communication embedding on the linear frequency modulation signal to generate the integrated baseband digital through sensing signal, realizes time division frequency division multiplexing on the premise of not damaging the large time width bandwidth product of the linear frequency modulation signal, and effectively improves the utilization rate of time frequency resources.

Description

Synaesthesia integrated signal generation system, photon terahertz synaesthesia system and method

Technical Field

The present invention relates to the technical field of signal processing, and in particular to a synaesthesia integrated signal generation system, a photon terahertz synaesthesia system and a method.

Background Art

In recent years, with the vigorous development of applications such as intelligent transportation, online conferences and short videos, mobile communications have been required to have ultra-high communication rates and high-precision perception. The integration of communication and perception systems can not only reduce hardware resource consumption and improve system utilization efficiency, but also improve system performance, which makes the integration of communication and perception functions imminent. More importantly, the ultra-rich frequency resources in the terahertz band can alleviate the current bottleneck of scarce spectrum resources. Therefore, terahertz communication perception has become a research hotspot. Against this background, Integrated Sensing and Communication (ISAC) technology came into being.

The existing methods for generating synaesthesia integrated signals include the following three methods: first, integrating the waveforms of the perception signal and the communication signal independently to generate a synaesthesia integrated signal; second, using time division multiplexing (TDM) or frequency division multiplexing (FDM) to couple the perception signal and the communication signal to obtain a synaesthesia integrated signal; third, using an integrated waveform to design a synaesthesia integrated signal with the same frequency at the same time. However, the above methods are difficult to meet the large time-width-bandwidth product requirements of the perception signal, and the utilization rate of time-frequency resources is low.

Summary of the invention

The present invention provides a synaesthesia integrated signal generation system, a photon terahertz synaesthesia system and a method, which are used to solve the defects that the existing synaesthesia integrated signal generation methods are difficult to meet the large time-width-bandwidth product requirements of the perception signal and the time-frequency resource utilization rate is low. The synaesthesia integrated signal generation system fully utilizes the idle time width and idle bandwidth of the linear frequency modulation signal, performs communication embedding on the linear frequency modulation signal, generates a baseband digital synaesthesia integrated signal, realizes time division and frequency division multiplexing without destroying the large time-width-bandwidth product of the linear frequency modulation signal, and effectively improves the time-frequency resource utilization rate.

In a first aspect, the present invention provides a synaesthesia integrated signal generation system, comprising: a signal generation module and a communication embedded module, wherein the signal generation module is used to generate a linear frequency modulation signal; the communication embedded module is used to determine the idle time width and idle bandwidth of the linear frequency modulation signal; based on the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, combined with the idle time width and the idle bandwidth, a baseband digital synaesthesia integrated signal is generated.

According to a synaesthesia integrated signal generation system provided by the present invention, the communication embedded module is used to generate a baseband digital synaesthesia integrated signal according to the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, combined with the idle time width and the idle bandwidth, including: the communication embedded module is specifically used to determine the total bandwidth and total time width of the linear frequency modulation signal, and determine the number of subcarriers of the multiple communication subcarrier signals; according to the total bandwidth, the total time width and the number of subcarriers, determine the embedded constraints; according to the embedded constraints, combined with the idle time width and the idle bandwidth, generate the baseband digital synaesthesia integrated signal.

According to a synaesthesia integrated signal generation system provided by the present invention, the embedded constraints include: subcarrier bandwidth, guard interval, subcarrier time width and the number of subcarriers, and the communication embedded module is specifically used to determine the embedded constraints according to the total bandwidth, the total time width and the number of subcarriers, including: the communication embedded module is specifically used to determine the subcarrier bandwidth of the communication subcarrier signal according to the total bandwidth and the number of subcarriers for each communication subcarrier signal in the multiple communication subcarrier signals, and the communication subcarrier signal is composed of at least one communication subcarrier signal in the time domain; determine the guard interval between any two adjacent communication subcarrier signals in the multiple communication subcarrier signals according to all subcarrier bandwidths and the total bandwidth; determine the subcarrier time width of each communication subcarrier signal according to the total time width and the number of subcarriers; determine the number of subcarriers of the at least one communication subcarrier signal according to the total time width and the subcarrier time width.

According to a synaesthesia integrated signal generation system provided by the present invention, the communication embedded module is specifically used to generate the baseband digital synaesthesia integrated signal according to the embedded constraint, combined with the idle time width and the idle bandwidth, including: the communication embedded module is specifically used to determine a plurality of target communication subcarrier signals that meet the embedded constraint, the idle time width and the idle bandwidth from the plurality of communication subcarrier signals; and embed the plurality of target communication subcarrier signals into the linear frequency modulation signal to generate the baseband digital synaesthesia integrated signal.

In a second aspect, the present invention further provides a photonic terahertz synaesthesia system, comprising: a synaesthesia integrated signal generation system, a digital-to-analog conversion module and a synaesthesia integrated signal application system as described in any one of the first aspects, wherein the synaesthesia integrated signal application system comprises: a signal processing module and a signal receiving module, wherein the digital-to-analog conversion module is used to convert the baseband digital synaesthesia integrated signal to obtain a baseband analog synaesthesia integrated signal; the signal processing module is used to determine a terahertz synaesthesia integrated signal according to the baseband analog synaesthesia integrated signal; and the signal receiving module is used to determine target information according to the terahertz synaesthesia integrated signal.

According to a photonic terahertz synaesthesia system provided by the present invention, the signal processing module includes: a signal modulation module and a signal transmission module, wherein the signal modulation module is used to determine the synaesthesia integrated optical signal according to the baseband analog synaesthesia integrated signal; the signal transmission module is used to determine the terahertz synaesthesia integrated signal according to the synaesthesia integrated optical signal.

According to a photonic terahertz synaesthesia system provided by the present invention, the target information includes: communication information and perception information, and the signal receiving module includes: a communication receiving module and a radar receiving module, wherein the communication receiving module is used to determine the radar echo signal and the communication information according to the terahertz synaesthesia integrated signal; and the radar receiving module is used to determine the perception information according to the radar echo signal.

In a third aspect, the present invention further provides a method for generating a synaesthesia integrated signal, comprising the following steps.

Generates a linear frequency modulation signal.

An idle time width and an idle bandwidth of the linear frequency modulation signal are determined.

According to the linear frequency modulation signal and a plurality of communication subcarrier signals in the frequency domain, the idle time width and the idle bandwidth are combined to generate a baseband digital synaesthesia integrated signal.

According to a synaesthesia integrated signal generation method provided by the present invention, the baseband digital synaesthesia integrated signal is generated according to the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, in combination with the idle time width and the idle bandwidth, including: determining the total bandwidth and total time width of the linear frequency modulation signal, and determining the number of subcarriers of the multiple communication subcarrier signals; determining embedded constraints according to the total bandwidth, the total time width and the number of subcarriers; and generating the baseband digital synaesthesia integrated signal according to the embedded constraints, in combination with the idle time width and the idle bandwidth.

According to a synaesthesia integrated signal generation method provided by the present invention, the embedded constraints include: subcarrier bandwidth, guard interval, subcarrier time width and the number of subcarriers, and the embedded constraints are determined according to the total bandwidth, the total time width and the number of subcarriers, including: for each communication subcarrier signal in the multiple communication subcarrier signals, according to the total bandwidth and the number of subcarriers, determine the subcarrier bandwidth of the communication subcarrier signal, the communication subcarrier signal is composed of at least one communication subcarrier signal in the time domain; according to all subcarrier bandwidths and the total bandwidth, determine the guard interval between any two adjacent communication subcarrier signals in the multiple communication subcarrier signals; according to the total time width and the number of subcarriers, determine the subcarrier time width of each communication subcarrier signal; according to the total time width and the subcarrier time width, determine the number of subcarriers of the at least one communication subcarrier signal.

According to a method for generating a synaesthesia integrated signal provided by the present invention, the baseband digital synaesthesia integrated signal is generated according to the embedded constraint in combination with the idle time width and the idle bandwidth, comprising: determining a plurality of target communication subcarrier signals satisfying the embedded constraint, the idle time width and the idle bandwidth from the plurality of communication subcarrier signals; and embedding the plurality of target communication subcarrier signals in the linear frequency modulation signal to generate the baseband digital synaesthesia integrated signal.

In a fourth aspect, the present invention further provides a photon terahertz synaesthesia method, comprising the following steps.

A baseband digital synaesthesia integrated signal is obtained, where the baseband digital synaesthesia integrated signal is obtained based on any one of the synaesthesia integrated signal generation methods according to the third aspect.

The baseband digital synaesthesia integrated signal is converted to obtain a baseband analog synaesthesia integrated signal.

A terahertz synaesthesia integration signal is determined according to the baseband simulated synaesthesia integration signal.

The target information is determined according to the terahertz synaesthesia integrated signal.

According to a photonic terahertz synaesthesia method provided by the present invention, determining the terahertz synaesthesia integrated signal according to the baseband simulated synaesthesia integrated signal includes: determining the synaesthesia integrated optical signal according to the baseband simulated synaesthesia integrated signal; and determining the terahertz synaesthesia integrated signal according to the synaesthesia integrated optical signal.

According to a photon terahertz synaesthesia method provided by the present invention, the target information includes: communication information and perception information, and determining the target information according to the terahertz synaesthesia integrated signal includes: determining a radar echo signal and the communication information according to the terahertz synaesthesia integrated signal; and determining the perception information according to the radar echo signal.

In a fifth aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for generating a synaesthesia integrated signal as described in any one of the third aspects is implemented, or the photonic terahertz synaesthesia method as described in any one of the fourth aspects is implemented.

In a sixth aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for generating a synaesthesia integrated signal as described in any one of the third aspects, or implements the photonic terahertz synaesthesia method as described in any one of the fourth aspects.

The present invention provides a synaesthesia integrated signal generation system, a photon terahertz synaesthesia system and a method, wherein the synaesthesia integrated signal generation system comprises: a signal generation module and a communication embedded module, wherein the signal generation module is used to generate a linear frequency modulation signal; the communication embedded module is used to determine the idle time width and idle bandwidth of the linear frequency modulation signal; according to the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, the idle time width and the idle bandwidth are combined to generate a baseband digital synaesthesia integrated signal. The synaesthesia integrated signal generation system makes full use of the idle time width and idle bandwidth of the linear frequency modulation signal, performs communication embedding on the linear frequency modulation signal, generates a baseband digital synaesthesia integrated signal, realizes time division and frequency division multiplexing without destroying the large time-width-bandwidth product of the linear frequency modulation signal, and effectively improves the utilization rate of time-frequency resources.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG. 1 is a schematic diagram of generating a synaesthesia integrated signal by using a time division multiplexing method provided by the prior art.

FIG2 is a schematic structural diagram of the synaesthesia integrated signal generation system provided by the present invention.

FIG3 is a schematic diagram of communication embedding provided by the present invention.

FIG4 is a time-frequency diagram of a baseband digital synaesthesia integrated signal provided by the present invention.

FIG5 is a schematic diagram of the spectrum of the baseband digital synaesthesia integrated signal provided by the present invention.

FIG. 6 is one of the structural schematic diagrams of the photonic terahertz synaesthesia system provided by the present invention.

FIG. 7 is a schematic diagram of the structure of a signal processing module provided by the present invention.

FIG8 is a schematic diagram of the structure of a signal receiving module provided by the present invention.

FIG. 9 is a schematic diagram of simulation results of a communication subcarrier signal provided by the present invention.

FIG. 10 is a schematic diagram of simulation results of autocorrelation or cross-correlation of signals with different time widths and bandwidths provided by the present invention.

FIG. 11 is a second schematic diagram of the structure of the photonic terahertz synaesthesia system provided by the present invention.

FIG. 12 is a schematic flow chart of the synaesthesia integrated signal generation method provided by the present invention.

FIG13 is a schematic flow chart of the photon terahertz synaesthesia method provided by the present invention.

FIG. 14 is a schematic diagram of the structure of an electronic device provided by the present invention.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In order to better understand the embodiments of the present invention, the background technology is first described in detail.

The existing methods for generating synaesthesia integrated signals include the following three methods: first, integrating the waveforms of the perception signal and the communication signal independently to generate a synaesthesia integrated signal; second, using time division multiplexing or frequency division multiplexing to couple the perception signal and the communication signal to obtain a synaesthesia integrated signal; third, using an integrated waveform to design a synaesthesia integrated signal with the same frequency at the same time. However, the above methods are difficult to meet the large time-width-bandwidth product requirements of the perception signal, and the utilization rate of time-frequency resources is low.

Among them, the computational complexity of time division multiplexing or frequency division multiplexing is low and easy to implement. However, time division multiplexing will reduce the perceived time width, and frequency division multiplexing will reduce the perceived bandwidth.

Exemplary, as shown in FIG1, is a schematic diagram of generating a synaesthesia integrated signal by time division multiplexing provided by the prior art. For a stepped frequency (SF) signal, a communication signal is interspersed in the idle time slot of the SF signal shown in (a) of FIG1, and a stepped frequency integrated signal shown in (b) of FIG1 is obtained, which belongs to a synaesthesia integrated signal. However, the communication rate that can be achieved by this method is limited (the area of the blue rectangle in (b) is small, indicating that the communication rate is low), the communication frequency and communication bandwidth are limited by the carrier frequency of the SF signal, the communication bandwidth needs to be less than the adjacent stepped frequency interval, the center frequency needs to be consistent with the stepped frequency, the flexibility is limited, and the communication time slot length affects the duration of the SF signal, there is time resource competition, resulting in low time-frequency resource utilization. In addition, for a single interleaved communication signal, the corresponding stepped carrier cannot be used for communication synchronization, and the communication signal also requires an additional synchronization sequence.

In addition, the synaesthesia integrated signal obtained by amplitude and angle modulation of the linear frequency modulation (LFM) signal has problems such as envelope change and spectrum broadening; the synaesthesia integrated signal obtained by partial modulation of the linear frequency modulation signal has the problem of limited communication time bandwidth; the multi-band orthogonal frequency division multiplexing (OFDM) synaesthesia integrated signal based on frequency comb only has the advantage of large bandwidth, but not the advantage of large time width.

In order to solve the above-mentioned problem of "it is difficult to meet the large time-width-bandwidth product requirements of perception signals and the low utilization rate of time-frequency resources", the embodiments of the present invention provide a synaesthesia integrated signal generation system, a photonic terahertz synaesthesia system and a method. The synaesthesia integrated signal generation system makes full use of the idle time width and idle bandwidth of the linear frequency modulation signal, embeds the linear frequency modulation signal for communication, and generates a baseband digital synaesthesia integrated signal. Without destroying the large time-width-bandwidth product of the linear frequency modulation signal, time division-frequency division multiplexing (TFDM) is realized, thereby effectively improving the utilization rate of time-frequency resources.

The synaesthesia integrated signal generation system involved in the embodiment of the present invention is further described below.

As shown in FIG2 , it is a schematic diagram of the structure of the synaesthesia integrated signal generating system provided by the present invention, which may include: a signal generating module 101 and a communication embedded module 102, wherein the signal generating module 101 is used to generate a linear frequency modulation signal; the communication embedded module 102 is used to determine the idle time width and idle bandwidth of the linear frequency modulation signal; and based on the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, a baseband digital synaesthesia integrated signal is generated in combination with the idle time width and the idle bandwidth.

Among them, the linear frequency modulation (LFM) signal is a commonly used radar signal. The frequency of the linear frequency modulation signal increases linearly with time and has a large time-bandwidth product.

The multiple communication sub-carrier signals in the frequency domain may be understood as multiple communication sub-carrier signals distributed at different frequencies in the time-frequency domain.

The idle time width refers to the idle time slot not occupied by the linear frequency modulation signal.

Idle bandwidth refers to the idle frequencies not occupied by linear frequency modulation signals.

Baseband digital synaesthesia integrated signal refers to a baseband digital signal that combines communication function and perception function.

It should be noted that the multiple communication subcarrier signals are generated by the communication embedded module 102, and the baud rate and modulation mode corresponding to each communication subcarrier signal in the multiple communication subcarrier signals can be independently configured, and at least one modulation format can be configured. Therefore, adaptive bit loading configuration of communication symbols can be achieved according to channel conditions and user needs, so that the subsequently generated baseband digital synaesthesia integrated signal has high flexibility.

In an embodiment of the present invention, the signal generation module 101 generates a linear frequency modulation signal and sends the linear frequency modulation signal to the communication embedded module 102. After receiving the linear frequency modulation signal, the communication embedded module 102 determines the idle time width and idle bandwidth of the linear frequency modulation signal, and generates multiple communication subcarrier signals in the frequency domain; then, the communication embedded module 102 generates a baseband digital synaesthesia integrated signal based on the linear frequency modulation signal and the multiple communication subcarrier signals, combined with the idle time width and idle bandwidth. In the whole process, the idle time width and idle bandwidth of the linear frequency modulation signal are fully utilized, the linear frequency modulation signal is embedded in the communication, and the baseband digital synaesthesia integrated signal is generated. Without destroying the large time-width-bandwidth product of the linear frequency modulation signal, time-division frequency-division multiplexing is realized, and the utilization rate of time-frequency resources is effectively improved.

In some embodiments, the communication embedded module 102 is used to generate a baseband digital synaesthesia integrated signal based on the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, combined with the idle time width and the idle bandwidth, and may include: the communication embedded module 102 is specifically used to determine the total bandwidth and total time width of the linear frequency modulation signal, and determine the number of subcarriers of the multiple communication subcarrier signals; determine the embedded constraints based on the total bandwidth, the total time width and the number of subcarriers; based on the embedded constraints, combine the idle time width and the idle bandwidth to generate the baseband digital synaesthesia integrated signal.

The total bandwidth can be represented by B _total , which refers to the difference between the maximum value and the minimum value of the signal frequency range, and can reflect the frequency coverage of the linear frequency modulation signal.

The total time width can be represented by t _total , which refers to the duration of the linear frequency modulation signal and can determine the continuity of the linear frequency modulation signal in time.

The communication subcarrier signal is a signal with a lower bandwidth embedded in the main carrier signal (such as a linear frequency modulation signal) and carries communication information. The number of subcarriers can be represented by n (n≥2).

In the embodiment of the present invention, the communication embedded module 102 determines the total bandwidth and the total time width according to the linear frequency modulation signal, and counts the number of subcarriers of multiple communication subcarrier signals; then, the communication embedded module 102 determines the embedded constraints according to the total bandwidth, the total time width and the number of subcarriers, and then combines the idle time width and the idle bandwidth to generate a baseband digital synaesthesia integrated signal. In the whole process, under the premise of ensuring the embedded constraints, the idle time width and the idle bandwidth of the linear frequency modulation signal are fully utilized to perform effective time division and frequency division multiplexing to improve the utilization rate of time and frequency resources.

In some embodiments, the embedded constraints include: subcarrier bandwidth, guard interval, subcarrier time width and number of subcarriers. The communication embedded module 102 is specifically used to determine the embedded constraints according to the total bandwidth, total time width and number of subcarriers, and may include: the communication embedded module 102 is specifically used to determine the subcarrier bandwidth of the communication subcarrier signal according to the total bandwidth and the number of subcarriers for each communication subcarrier signal in multiple communication subcarrier signals, and the communication subcarrier signal is composed of at least one communication subcarrier signal in the time domain; determine the guard interval between any two adjacent communication subcarrier signals in the multiple communication subcarrier signals according to all subcarrier bandwidths and the total bandwidth; determine the subcarrier time width of each communication subcarrier signal according to the total time width and the number of subcarriers; determine the number of subcarriers of at least one communication subcarrier signal according to the total time width and the subcarrier time width.

The subcarrier bandwidth can be represented by B _com , which refers to the frequency range occupied by the communication subcarrier signal in the frequency domain.

The subcarrier time width can be expressed as t _com , which refers to the duration of the communication subcarrier signal.

The number of subcarriers can be expressed as n’ (n’≥1).

At least one communication subcarrier signal in the time domain can be understood as at least one communication subcarrier signal distributed at different times at the same frequency in the time-frequency domain. That is to say, for any communication subcarrier signal, the communication subcarrier signal is at a certain frequency, at which there is at least one communication subcarrier signal distributed at different times, and the at least one communication subcarrier signal can constitute the communication subcarrier signal.

Exemplarily, in order to generate a protection interval between users in different frequency bands and between different information of users in the same frequency band (i.e., the protection interval between any two adjacent communication subcarrier signals among multiple communication subcarrier signals), assuming that the number of subcarriers n = 3, the subcarrier bandwidth B _com should satisfy B _com <B _total /3, the subcarrier time width t _com should satisfy t _com <t _total /3, the number of subcarriers n' = t _total /t _com -1, the protection interval between any two adjacent communication subcarrier signals among the 3 communication subcarrier signals can be expressed as: protection interval = (B _total -3B _com )/(3-1) = (B _total -3B _com )/2.

In an embodiment of the present invention, the communication embedded module 102 determines the subcarrier bandwidth B _com of the communication subcarrier signal for each communication subcarrier signal in a plurality of communication subcarrier signals according to the total bandwidth B _total and the number of subcarriers n, where the communication subcarrier signal is composed of at least one communication subcarrier signal in the time domain. Then, the communication embedded module 102 determines the protection interval between any two adjacent communication subcarrier signals in the plurality of communication subcarrier signals according to all subcarrier bandwidths and the total bandwidth B _total . At the same time, the communication embedded module 102 determines the subcarrier time width t _com of each communication subcarrier signal in the communication subcarrier signal according to the total time width t _total and the number of subcarriers n. Then, the communication embedded module 102 determines the number of subcarriers n', i.e., t _total /t _com -1, of at least one communication subcarrier signal according to the total time width and the subcarrier time width t _com . Based on this, the subcarrier bandwidth B _com , the guard interval, the subcarrier time width t _com and the number of subcarriers n' can constitute the embedded constraints corresponding to the communication subcarrier signal. Based on this, the number of embedded constraints is determined by the number of communication subcarrier signals. Each embedded constraint does not destroy the large time-width-bandwidth product of the linear frequency modulation signal while ensuring the guard interval, thereby ensuring full utilization of the idle time width and idle bandwidth of the linear frequency modulation signal to achieve time division and frequency division multiplexing.

In some embodiments, the communication embedded module 102 is specifically used to generate a baseband digital synaesthesia integrated signal according to the embedded constraints, combined with the idle time width and the idle bandwidth, and may include: the communication embedded module 102 is specifically used to determine a plurality of target communication subcarrier signals that meet the embedded constraints, the idle time width and the idle bandwidth from a plurality of communication subcarrier signals; and embed the plurality of target communication subcarrier signals into the linear frequency modulation signal to generate a baseband digital synaesthesia integrated signal.

Exemplary, as shown in FIG3, is a schematic diagram of communication embedding provided by the present invention. The communication embedding module 102 makes full use of the idle time width and idle bandwidth shown in (a) of FIG3 without destroying the large time-width-bandwidth product of the linear frequency modulation signal, and determines multiple target communication subcarrier signals (multiple blue rectangular parts shown in (c) of FIG3) that meet the embedding constraints, idle time width and idle bandwidth from the n communication subcarrier signals shown in (b) of FIG3, and embeds the multiple target communication subcarrier signals in the linear frequency modulation signal to obtain the baseband digital synaesthesia integrated signal shown in (c) of FIG3, that is, the multiple blue rectangular parts and the green oblique lines in (c).

As can be seen from FIG3 , the communication embedded module 102 makes full use of the idle time width and idle bandwidth (two-dimensional, equivalent to time-frequency + frequency division multiplexing) of the linear frequency modulation signal, and can achieve a higher communication rate (the larger area of the blue rectangle in (c) indicates a higher communication rate), and the communication frequency and communication bandwidth are not limited by the linear frequency modulation signal, and can be freely configured with high flexibility. In addition, the embedding of multiple target communication subcarrier signals will not destroy the large time-width-bandwidth product of the linear frequency modulation signal, and there is no competition for time-frequency resources, which effectively improves the utilization rate of time-frequency resources. In addition, for a single embedded target communication subcarrier signal, the corresponding linear frequency modulation signal can be used for communication synchronization without the need for an additional synchronization sequence.

In the embodiment of the present invention, the communication embedding module 102 determines multiple target communication subcarrier signals that meet the embedding constraints, idle time width and idle bandwidth from multiple communication subcarrier signals, and embeds the multiple target communication subcarrier signals in the linear frequency modulation signal to generate a baseband digital synaesthesia integrated signal. Without destroying the large time-width-bandwidth product of the linear frequency modulation signal, the idle time width and idle bandwidth of the linear frequency modulation signal are fully utilized to realize time-division frequency-division multiplexing, and effectively improve the utilization rate of time-frequency resources.

Taking three target communication subcarrier signals (the first target communication subcarrier signal, the second target communication subcarrier signal and the third target communication subcarrier signal) as an example, as shown in Figure 4, it is a time-frequency schematic diagram of the baseband digital synaesthesia integrated signal provided by the present invention. In Figure 4, 1 to 6 represent 6 communication subcarrier signals respectively, the communication subcarrier signal 1 corresponds to the first binary quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) (i.e. 4QAM) signal with a baud rate of 4 Gbaud, the communication subcarrier signal 2 corresponds to the first quaternary QAM (i.e. 16QAM) signal with a baud rate of 4Gbaud, the communication subcarrier signal 3 corresponds to the second 16QAM signal with a baud rate of 4Gbaud, the communication subcarrier signal 4 corresponds to the second 4QAM signal with a baud rate of 4Gbaud, the communication subcarrier signal 5 corresponds to the third 4QAM signal with a baud rate of 4Gbaud, and the communication subcarrier signal 6 corresponds to the third 16QAM signal with a baud rate of 4Gbaud. As can be seen from Figure 4, the first target communication subcarrier signal is composed of communication subcarrier signal 1 and communication subcarrier signal 2 in the time domain, the second target communication subcarrier signal is composed of communication subcarrier signal 3 and communication subcarrier signal 4 in the time domain, and the third target communication subcarrier signal is composed of communication subcarrier signal 5 and communication subcarrier signal 6 in the time domain. These six communication subcarrier signals meet the embedded constraints, idle time width and idle bandwidth. In other words, these three target communication subcarrier signals meet the embedded constraints, idle time width and idle bandwidth. The embedding of these three target communication subcarrier signals will not destroy the large time-width-bandwidth product of the linear frequency modulation signal, realize time-division and frequency-division multiplexing, and effectively improve the utilization of time-frequency resources.

For example, as shown in Fig. 5, it is a schematic diagram of the spectrum of the baseband digital synaesthesia integrated signal provided by the present invention. In combination with Fig. 4, it can be seen from Fig. 5 that the embedding of the three target communication subcarrier signals can effectively improve the spectrum utilization rate.

The photonic terahertz synaesthesia system involved in the embodiment of the present invention is further described below.

As shown in FIG6 , it is a schematic diagram of the structure of the photon terahertz synaesthesia system provided by the present invention, which may include: the synaesthesia integrated signal generation system, the digital-to-analog conversion module 20 and the synaesthesia integrated signal application system as shown in FIG2 , and the synaesthesia integrated signal application system includes: a signal processing module 301 and a signal receiving module 302, wherein the digital-to-analog conversion module 20 is used to convert the baseband digital synaesthesia integrated signal to obtain a baseband analog synaesthesia integrated signal; the signal processing module 301 is used to determine the terahertz synaesthesia integrated signal according to the baseband analog synaesthesia integrated signal; the signal receiving module 302 is used to determine the target information according to the terahertz synaesthesia integrated signal.

Among them, the target information includes: communication information and perception information.

In an embodiment of the present invention, the photonic terahertz synaesthesia system includes a synaesthesia integrated signal generation system, a digital-to-analog conversion module 20 and a synaesthesia integrated signal application system. After the communication embedded module 102 sends the baseband digital synaesthesia integrated signal to the digital-to-analog conversion module 20, the digital-to-analog conversion module 20 performs digital-to-analog conversion on the baseband digital synaesthesia integrated signal to obtain a baseband analog synaesthesia integrated signal, and sends the baseband analog synaesthesia integrated signal to the signal processing module 301; then, the signal processing module 301 processes the baseband analog synaesthesia integrated signal to obtain a terahertz synaesthesia integrated signal; then, the signal receiving module 302 can effectively restore the target information according to the terahertz synaesthesia integrated signal, whether it is perception information or communication information, it can be restored with high accuracy, which is crucial to the integrity and accuracy of information transmission.

In some embodiments, as shown in Fig. 7, it is a schematic diagram of the structure of the signal processing module provided by the present invention. The signal processing module 301 may include: a signal modulation module 3011 and a signal transmission module 3012, wherein the signal modulation module 3011 is used to determine the synaesthesia integrated optical signal according to the baseband analog synaesthesia integrated signal; the signal transmission module 3012 is used to determine the terahertz synaesthesia integrated signal according to the synaesthesia integrated optical signal.

Among them, the terahertz synaesthesia integrated signal is also called the downlink terahertz synaesthesia signal.

In the embodiment of the present invention, after the digital-to-analog conversion module 20 sends the baseband analog synaesthesia integrated signal to the signal modulation module 3011, the signal modulation module 3011 modulates the baseband analog synaesthesia integrated signal to obtain a synaesthesia integrated optical signal, and sends the synaesthesia integrated optical signal to the signal transmission module 3012; then, the signal transmission module 3012 processes the synaesthesia integrated optical signal to obtain a terahertz synaesthesia integrated signal, so that the subsequent signal receiving module 302 can effectively recover the target information from the terahertz synaesthesia integrated signal to ensure the integrity and accuracy of information transmission.

Optionally, the signal modulation module 3011 may include: a first tunable laser and an optical modulator.

Wherein, the first tunable laser is used to generate an optical carrier signal.

The optical modulator is used to modulate the baseband analog synaesthesia integrated signal onto the optical carrier signal to obtain the synaesthesia integrated optical signal.

Exemplarily, the first tunable laser may be a tunable external cavity laser or a distributed feedback laser (DFB), etc. The optical modulator may be a dual parallel Mach-Zehnder intensity modulator.

Optionally, the signal transmission module 3012 may include: an optical amplifier, a polarization controller, a second tunable laser, an optical coupler, an adjustable optical attenuator and a terahertz integrated transmitter.

The optical amplifier is used to amplify the synaesthesia optical signal to obtain a first synaesthesia optical signal.

The polarization controller is used to adjust the polarization state of the first synaesthesia optical signal to obtain the second synaesthesia optical signal after terahertz power amplification.

The second tunable laser is used to generate an optical local oscillator signal.

The optical coupler is used to couple the second synaesthesia optical signal with the optical local oscillator signal to obtain a coupled optical signal.

The adjustable optical attenuator is used to adjust the optical power of the coupled optical signal to obtain the target coupled optical signal.

The terahertz integrated transmitter is used to perform heterodyne beat frequency on the target coupled optical signal to obtain a terahertz synaesthesia integrated signal and radiate the terahertz synaesthesia integrated signal into the air.

Exemplarily, the optical amplifier may be a semiconductor laser amplifier or an erbium-doped fiber amplifier, etc. The second tunable laser may be a tunable external cavity laser or a DFB laser, etc.

In some embodiments, the target information includes: communication information and perception information, as shown in Figure 8, which is a schematic diagram of the structure of the signal receiving module provided by the present invention. The signal receiving module 302 may include: a communication receiving module 3021 and a radar receiving module 3022, wherein the communication receiving module 3021 is used to determine the radar echo signal and the communication information according to the terahertz synaesthesia integrated signal; the radar receiving module 3022 is used to determine the perception information according to the radar echo signal.

Among them, the radar echo signal is also called the uplink terahertz synaesthesia signal.

In the embodiment of the present invention, after the signal transmitting module 3012 radiates the terahertz synaesthesia integrated signal into the air, the communication receiving module 3021 receives the terahertz synaesthesia integrated signal from the air, and reflects the terahertz synaesthesia integrated signal to the radar receiving module 3022. At this time, the reflected signal received by the radar receiving module 3022 is the uplink terahertz synaesthesia signal, that is, the radar echo signal; at the same time, the communication receiving module 3021 processes the received terahertz synaesthesia integrated signal to effectively restore the communication information; and the radar receiving module 3022 processes the received radar echo signal to effectively restore the perception information.

Optionally, the communication receiving module 3021 may include: a terahertz signal receiver and a communication signal demodulation module. The communication signal demodulation module may include: a multi-subcarrier down-conversion module, a single-subcarrier communication synchronization module, a time division demultiplexing module and a communication digital signal processing (DSP) module.

Among them, the terahertz signal receiver is used to receive the terahertz synaesthesia integrated signal, reflect the terahertz synaesthesia integrated signal to the radar receiving module 3022, and down-convert the terahertz synaesthesia integrated signal to an intermediate frequency to obtain an intermediate frequency multi-subcarrier synaesthesia integrated signal.

The multi-subcarrier down-conversion module is used to down-convert the intermediate frequency multi-subcarrier inter-sensing integrated signal to obtain multiple baseband single-subcarrier inter-sensing integrated signals.

The single-subcarrier communication synchronization module is used to store and back up the linear frequency modulation signal; for each baseband single-subcarrier synaesthesia integrated signal in multiple baseband single-subcarrier synaesthesia integrated signals, the baseband single-subcarrier synaesthesia integrated signal is synchronized with the linear frequency modulation signal to obtain a target baseband single-subcarrier synaesthesia integrated signal.

The time division demultiplexing module is used to separate at least one embedded communication subcarrier signal from each target baseband single-subcarrier interaceptive integration signal among multiple target baseband single-subcarrier interaceptive integration signals.

The communication DSP module is used to process multiple communication sub-carrier signals to obtain communication information.

It should be noted that the number of multiple baseband single-subcarrier interawareness integrated signals is the same as the number of multiple target communication subcarrier signals. Taking Figure 3 as an example, multiple blue rectangular parts (i.e., multiple target communication subcarrier signals) and green oblique lines (i.e., linear frequency modulation signals) of (c) in Figure 3 together constitute a baseband digital interawareness integrated signal, and for the blue rectangular parts and part of the green oblique lines at the same frequency, after being processed by the digital-to-analog conversion module 20, the signal modulation module 3011, the signal transmission module 3012, the terahertz signal receiver, and the multi-subcarrier down-conversion module, a baseband single-subcarrier interawareness integrated signal after secondary down-conversion can be corresponded. It can be understood that at least one communication subcarrier signal is embedded in each baseband single-subcarrier interawareness integrated signal.

Optionally, the communication DSP module can perform clock recovery, phase compensation, bit error rate calculation and other processing on multiple communication subcarrier signals.

Taking three target baseband single-subcarrier synaesthesia integrated signals (the first target baseband single-subcarrier synaesthesia integrated signal, the second target baseband single-subcarrier synaesthesia integrated signal and the third target baseband single-subcarrier synaesthesia integrated signal) as an example, the first target baseband single-subcarrier synaesthesia integrated signal can correspond to the first target communication subcarrier signal in Figure 4, that is, the first target baseband single-subcarrier synaesthesia integrated signal is embedded with communication subcarrier signal 1 (first 4QAM signal) and communication subcarrier signal 2 (first 16QAM signal).

Exemplarily, for communication subcarrier signal 1 and communication subcarrier signal 2, as shown in FIG9, it is a schematic diagram of the simulation results of the communication subcarrier signal provided by the present invention. In FIG9, BER (Bit Error Ratio) represents the bit error rate, the abscissa I represents the in-phase component, and the ordinate Q represents the orthogonal component. It can be seen from FIG9 that the constellation diagrams corresponding to the first 4QAM signal and the first 16QAM signal respectively have good aggregation effects, and the bit error rates are both 0.

Optionally, the radar receiving module 3022 may include: a terahertz signal receiver and a radar signal processing module.

Among them, the terahertz signal receiver is used to receive the radar echo signal reflected by the terahertz signal receiver; down-convert the radar echo signal to an intermediate frequency to obtain an intermediate frequency radar echo signal.

The radar signal processing module is used to obtain a radar reference signal; based on the radar reference signal, the intermediate frequency radar echo signal is processed to obtain perception information.

Optionally, the radar reference signal may be a radar reference optical signal or a radar reference electrical signal.

Taking three target baseband single-subcarrier synaesthesia integrated signals as an example, as shown in Figure 10, it is a schematic diagram of the simulation results of the autocorrelation or cross-correlation of different time-width bandwidth signals provided by the present invention. The first curve corresponds to the autocorrelation result of the linear frequency modulation signal with a bandwidth of B _total /3 and a time width of t _total /3, the second curve corresponds to the cross-correlation result of the three target baseband single-subcarrier synaesthesia integrated signals and the linear frequency modulation signal with a bandwidth of B _total /3 and a time width of t _total /3, and the third curve corresponds to the cross-correlation result of the three target baseband single-subcarrier synaesthesia integrated signals and the linear frequency modulation signal with a bandwidth of B _total and a time width of t _total . Wherein, when calculating each correlation peak, each waveform is normalized.

As can be seen from Figure 10, the large time width of the linear frequency modulation signal affects the amplitude of the correlation peak. The larger the signal time width, the higher the peak value of the correlation peak and the longer the effective distance. The large bandwidth of the linear frequency modulation signal affects the width of the correlation peak. The larger the signal bandwidth, the narrower the correlation peak and the higher the perception accuracy.

It can be seen that the baseband digital synaesthesia integrated signal generated by the synaesthesia integrated signal generation system fully utilizes the idle time width and idle bandwidth of the linear frequency modulation signal under the premise of retaining the large time-width-bandwidth product of the linear frequency modulation signal, performs communication embedding on the linear frequency modulation signal, realizes time-division and frequency-division multiplexing, and effectively improves the utilization rate of time-frequency resources. In addition, since the communication embedding module 102 does not destroy the large time-width-bandwidth product of the linear frequency modulation signal, the generated baseband digital synaesthesia integrated signal has high radar perception accuracy and a long perception range.

As shown in Figure 11, it is a schematic diagram of the structure of the photon terahertz synaesthesia system provided by the present invention. As can be seen from Figure 11, the synaesthesia integrated signal generation system is connected to the digital-to-analog conversion module 20, the digital-to-analog conversion module 20 is connected to the signal modulation module 3011, the signal modulation module 3011 is connected to the signal transmission module 3012, and the signal transmission module 3012 is remotely connected to the signal receiving module 302.

The synaesthesia integrated signal generation method provided by the present invention is described below. The synaesthesia integrated signal generation method described below and the synaesthesia integrated signal generation system described above can be referred to each other.

As shown in FIG. 12 , it is a schematic flow chart of the method for generating synaesthesia integrated signals provided by the present invention, which may include the following steps 1201 to 1203 .

1201. Generate a linear frequency modulation signal.

1202. Determine an idle time width and an idle bandwidth of a linear frequency modulation signal.

1203. Generate a baseband digital synaesthesia integrated signal based on the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain in combination with the idle time width and the idle bandwidth.

In some embodiments, based on the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, in combination with the idle time width and the idle bandwidth, a baseband digital synaesthesia integrated signal is generated, including: determining the total bandwidth and total time width of the linear frequency modulation signal, and determining the number of subcarriers of the multiple communication subcarrier signals; determining embedded constraints based on the total bandwidth, total time width and the number of subcarriers; based on the embedded constraints, in combination with the idle time width and the idle bandwidth, generating a baseband digital synaesthesia integrated signal.

The above process of generating the baseband digital synaesthesia integrated signal is the same as the process of the communication embedded module generating the baseband digital synaesthesia integrated signal described above, and will not be described in detail here.

In some embodiments, the embedded constraints include: subcarrier bandwidth, guard interval, subcarrier time width and number of subcarriers. The embedded constraints are determined based on the total bandwidth, total time width and number of subcarriers, including: for each communication subcarrier signal in a plurality of communication subcarrier signals, determining the subcarrier bandwidth of the communication subcarrier signal based on the total bandwidth and the number of subcarriers, the communication subcarrier signal is composed of at least one communication subcarrier signal in the time domain; determining the guard interval between any two adjacent communication subcarrier signals in the plurality of communication subcarrier signals based on all subcarrier bandwidths and the total bandwidth; determining the subcarrier time width of each communication subcarrier signal based on the total time width and the number of subcarriers; determining the number of subcarriers of at least one communication subcarrier signal based on the total time width and the subcarrier time width.

The above process of determining the embedded constraints is the same as the process of determining the embedded constraints by the communication embedded module described above, and will not be described in detail here.

In some embodiments, based on the embedded constraints, in combination with the idle time width and the idle bandwidth, a baseband digital synaesthesia integrated signal is generated, including: determining a plurality of target communication subcarrier signals satisfying the embedded constraints, the idle time width and the idle bandwidth from a plurality of communication subcarrier signals; and embedding the plurality of target communication subcarrier signals into a linear frequency modulation signal to generate a baseband digital synaesthesia integrated signal.

The above process of generating the baseband digital synaesthesia integrated signal is the same as the process of the communication embedded module generating the baseband digital synaesthesia integrated signal described above, and will not be described in detail here.

In the embodiment of the present invention, a linear frequency modulation signal is first generated; then the idle time width and idle bandwidth of the linear frequency modulation signal are determined; then, based on the linear frequency modulation signal and multiple communication subcarrier signals in the frequency domain, the idle time width and idle bandwidth are combined to generate a baseband digital synaesthesia integrated signal. In the whole process, the idle time width and idle bandwidth of the linear frequency modulation signal are fully utilized, the linear frequency modulation signal is embedded in the communication, and the baseband digital synaesthesia integrated signal is generated. Under the premise of not destroying the large time-width-bandwidth product of the linear frequency modulation signal, time-division frequency-division multiplexing is realized, and the utilization rate of time-frequency resources is effectively improved.

In the future, OFDM signals can be embedded in linear frequency modulation signals in the above communication embedding manner to further improve the utilization of time and frequency resources.

The photon terahertz synaesthesia method provided by the present invention is described below. The photon terahertz synaesthesia method described below and the photon terahertz synaesthesia system described above can be referred to each other.

As shown in FIG. 13 , it is a schematic flow chart of the photon terahertz synaesthesia method provided by the present invention, which may include the following steps 1301 to 1304 .

1301. Acquire a baseband digital synaesthesia integrated signal, where the baseband digital synaesthesia integrated signal is obtained based on the synaesthesia integrated signal generation method described in steps 1201-1203.

1302. Convert the baseband digital synaesthesia integrated signal to obtain a baseband analog synaesthesia integrated signal.

1303. Determine a terahertz synaesthesia integration signal according to the baseband analog synaesthesia integration signal.

In some embodiments, determining a terahertz synaesthesia integrated signal according to a baseband simulated synaesthesia integrated signal includes: determining a synaesthesia integrated optical signal according to the baseband simulated synaesthesia integrated signal; and determining a terahertz synaesthesia integrated signal according to the synaesthesia integrated optical signal.

The above process of determining the terahertz synaesthesia integrated signal is the same as the process of determining the terahertz synaesthesia integrated signal by combining the signal modulation module with the signal transmission module described above, and will not be described in detail here.

1304. Determine target information based on the terahertz synaesthesia integrated signal.

In some embodiments, the target information includes: communication information and perception information. Determining the target information according to the terahertz synaesthesia integrated signal includes: determining the radar echo signal and communication information according to the terahertz synaesthesia integrated signal; determining the perception information according to the radar echo signal.

The above process of determining target information is the same as the process of determining target information by combining the communication receiving module with the radar receiving module described above, and will not be described in detail here.

In an embodiment of the present invention, a baseband digital synaesthesia integrated signal is first obtained; then, the baseband digital synaesthesia integrated signal is converted to obtain a baseband analog synaesthesia integrated signal, and then a terahertz synaesthesia integrated signal is determined; then, the target information is determined according to the terahertz synaesthesia integrated signal. In the whole process, the idle time width and idle bandwidth of the linear frequency modulation signal can be fully utilized to realize the communication embedding of the linear frequency modulation signal, generate the baseband digital synaesthesia integrated signal, and realize time division and frequency division multiplexing without destroying the large time-width-bandwidth product of the linear frequency modulation signal, effectively improve the utilization rate of time-frequency resources, and effectively restore the target information. Whether it is perception information or communication information, it can be restored with high accuracy, which is crucial for the integrity and accuracy of information transmission.

As shown in FIG14 , it is a schematic diagram of the structure of the electronic device provided by the present invention, and the electronic device may include: a processor 1410, a communication interface 1420, a memory 1430 and a communication bus 1440, wherein the processor 1410, the communication interface 1420 and the memory 1430 communicate with each other through the communication bus 1440. The processor 1410 may call the logic instructions in the memory 1430 to execute the above-mentioned synaesthesia integrated signal generation method or the photon terahertz synaesthesia method.

In addition, the logic instructions in the above-mentioned memory 1430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the above-mentioned synaesthesia integrated signal generation method or photon terahertz synaesthesia method.

The system embodiment described above is merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (16)

1. A sense-of-general integrated signal generation system, comprising: a signal generating module and a communication embedded module, wherein,

The signal generation module is used for generating a linear frequency modulation signal;

The communication embedded module is used for determining the idle time width and the idle bandwidth of the linear frequency modulation signal; and generating a baseband digital sense-on integrated signal according to the linear frequency modulation signal and a plurality of communication subcarrier signals on a frequency domain by combining the idle time width and the idle bandwidth.

2. The system of claim 1, wherein the communication embedded module is configured to generate a baseband digital sense-of-general-purpose integrated signal according to the chirp signal and a plurality of communication subcarrier signals in a frequency domain, in combination with the idle time bandwidth and the idle bandwidth, and comprises:

the communication embedded module is specifically configured to determine a total bandwidth and a total time width of the chirp signal, and determine the subcarrier numbers of the plurality of communication subcarrier signals; determining an embedded constraint according to the total bandwidth, the total time width and the number of subcarriers; and generating the baseband digital sense-on integrated signal by combining the idle time width and the idle bandwidth according to the embedded constraint.

3. The integrated-with-sense signal generation system of claim 2, wherein the embedded constraints comprise: the communication embedded module is specifically configured to determine an embedded constraint according to the total bandwidth, the total time width and the subcarrier number, and the method includes:

The communication embedded module is specifically configured to determine, for each communication subcarrier signal in the plurality of communication subcarrier signals, the subcarrier bandwidth of the communication subcarrier signal according to the total bandwidth and the subcarrier number, where the communication subcarrier signal is formed by at least one communication subcarrier signal in a time domain; determining the guard interval between any two adjacent communication subcarrier signals in the plurality of communication subcarrier signals according to all subcarrier bandwidths and the total bandwidth; determining the subcarrier time width of each communication subcarrier signal according to the total time width and the subcarrier number; and determining the number of subcarriers of the at least one communication subcarrier signal according to the total time width and the subcarrier time width.

4. The system of claim 2, wherein the communication embedded module is specifically configured to generate the baseband digital sense-of-general-purpose integrated signal by combining the idle time bandwidth and the idle bandwidth according to the embedded constraint, and includes:

The communication embedded module is specifically configured to determine, from the plurality of communication subcarrier signals, a plurality of target communication subcarrier signals that satisfy the embedded constraint, the idle time width, and the idle bandwidth; and embedding the plurality of target communication subcarrier signals into the linear frequency modulation signals to generate the baseband digital sense-of-general integrated signal.

5. A photonic terahertz alleviative system, comprising: the sense-of-general integrated signal generating system, digital-to-analog conversion module, and sense-of-general integrated signal application system according to any one of claims 1 to 4, the sense-of-general integrated signal application system comprising: a signal processing module and a signal receiving module, wherein,

The digital-to-analog conversion module is used for converting the baseband digital sense integrated signal to obtain a baseband analog sense integrated signal;

The signal processing module is used for determining a terahertz integrated signal according to the baseband analog integrated signal; the signal receiving module is used for determining target information according to the terahertz sense integrated signal.

6. The photonic terahertz passsense system of claim 5 wherein the signal processing module comprises: a signal modulation module and a signal transmission module, wherein,

The signal modulation module is used for determining a light signal integrating the sense of all according to the baseband analog integrated signal integrating the sense of all;

The signal transmitting module is used for determining the terahertz integrated signal according to the integrated optical signal.

7. The photonic terahertz passsense system of claim 5 wherein the target information comprises: communication information and perception information, the signal receiving module includes: a communication receiving module and a radar receiving module, wherein,

The communication receiving module is used for determining a radar echo signal and the communication information according to the terahertz communication integrated signal;

the radar receiving module is used for determining the perception information according to the radar echo signals.

8. The utility model provides a sense of general integration signal generation method which is characterized in that the method comprises the following steps:

Generating a linear frequency modulation signal;

determining the idle time width and the idle bandwidth of the linear frequency modulation signal;

and generating a baseband digital sense-on integrated signal according to the linear frequency modulation signal and a plurality of communication subcarrier signals on a frequency domain by combining the idle time width and the idle bandwidth.

9. The method of generating a sense of all integrated signal according to claim 8, wherein generating a baseband digital sense of all integrated signal from the chirp signal and a plurality of communication subcarrier signals in a frequency domain in combination with the idle time width and the idle bandwidth comprises:

Determining a total bandwidth and a total time width of the chirp signal and determining a number of subcarriers of the plurality of communication subcarrier signals; determining an embedded constraint according to the total bandwidth, the total time width and the number of subcarriers;

and generating the baseband digital sense-on integrated signal by combining the idle time width and the idle bandwidth according to the embedded constraint.

10. The method for generating a sense of general integration signal according to claim 9, wherein the embedded constraint comprises: the method for determining the embedded constraint according to the total bandwidth, the total time width and the subcarrier number comprises the following steps:

for each communication subcarrier signal of the plurality of communication subcarrier signals, determining the subcarrier bandwidth of a communication subcarrier signal according to the total bandwidth and the subcarrier number, wherein the communication subcarrier signal is composed of at least one communication subcarrier signal in a time domain;

determining the guard interval between any two adjacent communication subcarrier signals in the plurality of communication subcarrier signals according to all subcarrier bandwidths and the total bandwidth;

determining the subcarrier time width of each communication subcarrier signal according to the total time width and the subcarrier number;

And determining the number of subcarriers of the at least one communication subcarrier signal according to the total time width and the subcarrier time width.

11. The method for generating a digital sense of all integrated signal according to claim 9, wherein said generating the digital sense of all integrated signal based on the embedded constraint in combination with the idle time width and the idle bandwidth comprises:

Determining a plurality of target communication subcarrier signals satisfying the embedded constraint, the idle time width and the idle bandwidth from the plurality of communication subcarrier signals;

and embedding the plurality of target communication subcarrier signals into the linear frequency modulation signals to generate the baseband digital sense-of-general integrated signal.

12. A photonic terahertz alleviative method, comprising:

acquiring a baseband digital sense-of-all integrated signal, the baseband digital sense-of-all integrated signal being obtained based on the sense-of-all integrated signal generation method of any one of claims 8 to 11;

Converting the baseband digital sense integrated signal to obtain a baseband analog sense integrated signal;

Determining a terahertz integrated signal according to the baseband analog integrated signal;

And determining target information according to the terahertz sense integrated signal.

13. The photonic terahertz integrated signal according to claim 12, wherein the determining the terahertz integrated signal from the baseband analog integrated signal includes:

determining a light signal integrating the sense of general according to the baseband analog integrated signal integrating the sense of general;

And determining the terahertz integrated signal according to the integrated optical signal.

14. The photonic terahertz passaging method of claim 12, wherein the target information includes: communication information and perception information, according to terahertz leads to sense integration signal, confirm target information includes:

Determining a radar echo signal and the communication information according to the terahertz communication integrated signal;

and determining the perception information according to the radar echo signals.

15. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of generating a passsense integrated signal according to any one of claims 8 to 11 or implements the photonic terahertz passsense method according to any one of claims 12 to 14 when the program is executed.

16. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the method of generating a passsense integrated signal according to any one of claims 8 to 11 or implements the photonic terahertz passsense method according to any one of claims 12 to 14.