CN113794502B - Mars surrounding device measurement and control data transmission integrated system and method - Google Patents
Mars surrounding device measurement and control data transmission integrated system and method Download PDFInfo
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- CN113794502B CN113794502B CN202111028662.6A CN202111028662A CN113794502B CN 113794502 B CN113794502 B CN 113794502B CN 202111028662 A CN202111028662 A CN 202111028662A CN 113794502 B CN113794502 B CN 113794502B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/59—Responders; Transponders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a system and a method for integrating measurement and control data transmission of a Mars surrounding device, comprising a multiplexing module, a transponder, an amplifier and an antenna subsystem; the multiplexing module outputs an information code stream and transmits the information code stream to the transponder; the transponder is matched with the information code stream to obtain a radio frequency signal after modulation, and the radio frequency signal is transmitted to the amplifier; the amplifier amplifies the power of the signal, and the antenna subsystem completes radio frequency receiving and transmitting according to the radio frequency signal. The invention multiplexes the hardware of the on-board measurement and control channel and the data transmission channel, the software function is realized by the deep space answering machine, and the downloading of different data types is realized by different service switching, thereby reducing the weight of the detector, saving the on-board resources and improving the efficiency of the on-board data transmission.
Description
Technical Field
The invention relates to the technical field of deep space exploration communication, in particular to a method and a system for integrating measurement and control data transmission of a Mars surrounding detector. In particular, it relates to a measurement and control data transmission integrated implementation method for Mars surrounding device.
Background
The conventional satellite generally realizes remote control and remote measurement and service data transmission by a measurement and control subsystem and a data transmission subsystem respectively, and the two subsystems are independent and related to each other. The measurement and control subsystem is generally composed of a transponder, an amplifier, an antenna and other devices, and the data transmission subsystem is generally composed of a terminal, a modulator, an amplifier, an antenna and other devices.
The spark surrounding device adjusts the attitude for a plurality of times, changes the orbit maneuver and flies on orbit for a long time, needs to carry a large amount of fuel, and reduces the weight of a single machine and a cable on the satellite as much as possible except ensuring that the condition of successful task is met under the condition that the capability of a carrier rocket is limited.
Related technology: the Chinese patent document with publication number of CN108009718A discloses a measurement and control data transmission resource integrated scheduling method, which comprises the following steps: 1) Receiving measurement and control resource use applications and receiving resource use applications from each ground station resource use user; wherein the measurement and control resource usage application and the receiving resource usage application both comprise elastic options related to the start time of a service event, the duration of the service event and a ground station group; 2) Scheduling data reception based on the received resource usage application and data reception constraints closely related to the resource and execution time; 3) Scheduling a measurement and control plan based on the measurement and control resource usage application, the results of the data reception plan, and measurement and control constraints related to resource and execution time; 4) And generating a measurement and control receiving integrated work plan and sending to each resource use user. The patent document proposes an integrated scheduling method for measuring and controlling data transmission resources, which focuses on the integrated scheduling in the aspect of ground use and does not relate to on-board design.
The Chinese patent document with publication number of CN103117792A discloses a dual-band channel multiplexing small measurement and control data transmission system, which comprises: a plurality of receiving antennas, a first transmitting antenna, a plurality of second transmitting antennas, a response communication module, a first power amplifier, a second selection switch and a transmitting module; multiple receiving antennas receive multiple radio signals; the first transmitting antenna and the plurality of second transmitting antennas radiate multipath radio signals to the space respectively at the frequency of the second frequency band and the frequency of the first frequency band; the response communication module selects and modulates the multipath radio signals and outputs multipath remote control signals, and simultaneously receives the first telemetry/data transmission signals and outputs second output signals after coherent and modulation; the first power amplifier works in a first frequency band to amplify power of the second output signal; the second selector switch receives the second output signal with amplified power and outputs the second output signal to a plurality of second transmitting antennas; the transmitting module receives the second digital transmission signal, amplifies the second digital transmission signal and transmits the amplified second digital transmission signal to the first transmitting antenna. The patent document designs a dual-band channel multiplexing small measurement and control data transmission system, adopts a dual-band measurement and control data transmission system, is not a completely integrated design on measurement and control data transmission, and does not relate to integration of measurement and control data transmission hardware channels.
Patent document publication No. CN103067326a discloses a telemetry and data transmission integrated transmitter, and the whole transmitter includes carrier generation (phase-locked frequency multiplication mode), a phase modulation circuit (analog phase modulation), an amplifier, a data transmission modulator (BPSK modulation), a filter, an isolator, and the like. The reference frequency enters a phase-locked loop, a transmitting carrier wave is obtained in a phase-locked frequency multiplication mode, all telemetry data are subjected to phase modulation after passing through a phase modulation circuit, downlink signals of a telemetry transmitter are obtained, and the downlink signals enter a data transmission modulator after amplitude amplification. The data transmission modulator and the telemetry modulator adopt a serial design mode, when telemetry data exist, no data are input, and the transmitter is a telemetry transmitter; when data transmission modulation is carried out, the input end of the phase modulation circuit is free of data, and the transmitter is a data transmission transmitter. Thus realizing the integrated design of telemetry and data transmission. The patent document designs a telemetry and data transmission integrated transmitter, only designs the telemetry transmitter and the data transmission transmitter, and does not relate to the design of the whole measurement and control data transmission integrated system.
The Chinese patent document with publication number of CN112612295A discloses a remote sensing satellite ground station measurement and control and data transmission resource automatic allocation method, which relates to the technical field of space remote sensing imaging, and takes imaging tasks of satellites as units, firstly determines the profit value of each imaging task, and then allocates measurement and control and data transmission resources for the imaging tasks in sequence according to the order of the profit values from large to small. The method can ensure that tasks with large profit values preferentially use ground station resources, solve conflict tasks with small profit values and realize the maximization of the total profit values. Meanwhile, the method can be rapidly and repeatedly executed, reduces labor cost and improves efficiency, and meanwhile, the total maximum benefit value obtained by different imaging task sets can be compared, so that reference information is provided for service personnel to resolve imaging task conflicts.
Aiming at the related technology, the inventor considers that the telemetry data and the business data transmission in the method are respectively realized by a measurement and control subsystem and a data transmission subsystem, the communication resources of deep space exploration are wasted, and the whole satellite quality is larger.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a system and a method for integrating measurement and control data transmission of a Mars circulator.
The invention provides a measurement and control data transmission integrated system of a Mars surrounding device, which comprises a multiplexing module, a transponder, an amplifier and an antenna subsystem;
the multiplexing module outputs an information code stream and transmits the information code stream to the transponder;
the transponder is matched with the information code stream to obtain a radio frequency signal after modulation, and the radio frequency signal is transmitted to the amplifier;
the amplifier is used for carrying out power amplification on the radio frequency signals and transmitting the radio frequency signals amplified by the power amplification to the antenna subsystem;
the antenna subsystem completes radio frequency receiving and transmitting according to the radio frequency signal amplified by power.
Preferably, the radio frequency signal comprises a measurement and control signal or a data transmission signal; and the amplifier completes the power amplification of the measurement and control signal or the data transmission signal, and the measurement and control signal or the data transmission signal after the power amplification is transmitted to the antenna subsystem.
Preferably, the multiplexing module selects to transmit different information code streams to the transponder through the data interface according to the measurement and control or data transmission working modes.
Preferably, the communication mode and the multiplexing module of the transponder are set by a ground measurement and control system according to a task type uploading instruction;
the multiplexing module comprises a data storage module, the transponder comprises a data processing module, and the multiplexing module outputs a corresponding information code stream from the data storage module to the data processing module according to the ground uploading instruction;
the data processing module processes the information code stream by adopting a corresponding modulation mode according to the set communication mode to obtain a baseband signal, and modulates the baseband signal into a radio frequency signal and sends the radio frequency signal to the amplifier;
the amplifier amplifies the radio frequency signals and transmits the amplified radio frequency signals to the antenna subsystem;
the antenna subsystem transmits the radio frequency signals transmitted by the amplifier to the ground through the antenna.
Preferably, the data storage module comprises a flash memory and a solid memory, wherein the flash memory stores telemetry information, and the solid memory stores load data;
the information code stream output by the multiplexing module comprises a telemetry information stream and a mixed stream; the telemetry information stream includes telemetry information; the mixed stream includes the proportionally distributed telemetry information and payload data.
Preferably, the communication mode includes a measurement and control mode and a data transmission mode.
Preferably, the modulation mode in the measurement and control mode comprises PM modulation; the modulation mode in the data transmission mode comprises QPSK modulation code rate and BPSK modulation code rate.
Preferably, the amplifier comprises a high-power traveling wave tube amplifier.
Preferably, the antenna subsystem is configured as a low gain antenna, a medium gain antenna, and a high gain directional antenna.
The invention provides a measurement and control data transmission integrated method of a Mars circulator, which comprises the following steps:
step 1: outputting an information code stream;
step 2: matching and processing the information code stream to obtain a radio frequency signal;
step 3: amplifying the power of the radio frequency signal;
step 4: and completing radio frequency receiving and transmitting according to the radio frequency signal of power amplification.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, by multiplexing the hardware of the on-board measurement and control channel and the data transmission channel, the software function is realized by the deep space answering machine, and the downloading of different data types is realized by different service switching, so that the weight of the detector is reduced, the on-board resources are saved, and the efficiency of on-board data transmission is improved;
2. the invention integrates the measurement and control subsystem and the data transmission subsystem, shares one downlink radio frequency channel, realizes integrated design, and saves communication resources of deep space exploration;
3. the invention carries out integrated design on measurement and control data transmission of the Mars surrounding device, the data processing part is realized in a deep space transponder, the working modes are switched according to different working conditions, and the same radio frequency amplifying channel is shared to finish telemetry and scientific data downloading;
4. the invention reduces the whole satellite quality, two subsystems are integrated into one subsystem, the number of single units is reduced, and simultaneously, one radio frequency channel is shared, so that the cost is reduced;
5. the invention simplifies the structure layout in the star and saves the internal space; the deep space transponder realizes the measurement and control and data transmission functions at the same time, and can avoid complex wiring and ageing in structural design;
6. the invention provides convenience for developing, designing and electrically measuring split system.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of the measurement and control data transmission integration of the invention;
FIG. 2 is a schematic diagram of measurement and control data transmission integrated data processing according to the invention;
FIG. 3 is a diagram of a measurement and control data transmission integrated switching instruction according to the present invention;
FIG. 4 is a schematic diagram of a measurement and control data transmission subsystem according to the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The embodiment of the invention discloses a system integrating measurement and control data transmission of a Mars circulator, which comprises a multiplexing module, a transponder, an amplifier and an antenna subsystem as shown in figure 1. The multiplexing module comprises a comprehensive electronic data multiplexing module; the transponder comprises a deep space transponder; the antenna subsystem includes a transmit antenna subsystem. The amplifier module comprises a high-power traveling wave tube amplifier. The transponder comprises a communication mode, and the communication mode and the multiplexing module of the transponder are set by the ground measurement and control system according to the task type uploading instruction. The communication modes include a measurement and control mode and a data transmission mode. The modulation mode in the measurement and control mode comprises PM modulation; the modulation mode in the data transmission mode comprises QPSK modulation code rate and BPSK modulation code rate. The transponder sets a response mode according to the ground surface annotating instruction, and the transponder processes the information code stream according to the response mode matching.
The deep space transponder communication modes are divided into two types, namely a measurement and control mode and a data transmission mode. PM modulation is adopted for measurement and control, and QPSK and BPSK modulation modes are adopted for data transmission. The modulation modes are divided into three types, the modulation mode is PM modulation in the measurement and control mode, and three-gear code rates are set to 16384bps,1024bps and 32bps respectively. In data transmission mode, QPSK modulation code rates are 1024kbps, 2048kbps and 4096kbps, respectively. The BPSK modulation code rates are 16kbps, 32kbps, 64kbps, 128kbps, 256kbps and 512kbps, respectively. PM english full term phase modulation, chinese translation phase modulation. QPSK English is called Quadrature Phase Shift Keying, chinese translation is quadrature phase shift keying. The full name Binary Phase Shift Keying Chinese translation of BPSK is binary phase shift keying.
The multiplexing module outputs the information code stream and transmits the information code stream to the transponder. And the multiplexing module selectively transmits different information code streams to the transponder through the data interface according to the measurement and control or data transmission working modes. The multiplexing module comprises a data storage module, the transponder comprises a data processing module, and the multiplexing module outputs corresponding information code streams from the data storage module to the data processing module according to the ground uploading instruction. The data storage module comprises a Flash memory (Flash) and a solid memory, wherein the Flash memory stores telemetry information, and the solid memory stores load data. The information code stream output by the multiplexing module comprises a telemetry information stream and a mixed stream. The telemetry information stream includes telemetry information; the mixed stream includes the proportionally distributed telemetry information and payload data. FLASH English is called: FLASH memory, chinese translation.
The data storage modules (data cache modules) are divided into two types, telemetry information is stored in Flash, and load data is stored in solid memory; the information code stream output by the comprehensive electronic multiplexing module comprises a pure telemetry information stream and a mixed stream in which telemetry information and load data are distributed in proportion.
The transponder is matched with the information code stream to obtain a radio frequency signal after modulation, and the radio frequency signal is transmitted to the amplifier. The data processing module processes the information code stream by adopting a corresponding modulation mode according to the set communication mode to obtain a baseband signal, and modulates the baseband signal into a radio frequency signal and sends the radio frequency signal to the amplifier. The transponder processes the information code stream according to the working mode matching.
The amplifier performs power amplification on the radio frequency signal and transmits the power-amplified radio frequency signal to the antenna subsystem. The radio frequency signal comprises a measurement and control signal or a data transmission signal. The amplifier is used for completing the power amplification of the measurement and control signal or the data transmission signal, and the measurement and control signal or the data transmission signal after the power amplification is transmitted to the antenna subsystem.
The antenna subsystem completes radio frequency receiving and transmitting according to the radio frequency signal amplified by the power. The antenna subsystem transmits the radio frequency signals transmitted by the amplifier to the ground through the antenna. And the antenna subsystem transmits the amplified radio frequency signals to the ground through corresponding antenna ports. The antenna subsystem is configured as a low gain antenna, a medium gain antenna, and a high gain directional antenna. The gain of the low-gain antenna is 3dBi (+ -50 degrees), the gain of the medium-gain antenna is 10dBi (+ -25 degrees), and the gain of the high-gain antenna is 39dBi (+ -0.5 degrees). The antenna subsystem completes radio frequency receiving and transmitting according to radio frequency signals. And the antenna subsystem selects an antenna according to the working mode to complete radio frequency transceiving.
The embodiment of the invention also discloses a method for integrating measurement and control data transmission of the Mars circulator, which is shown in fig. 1 and comprises the following steps: step 1: and outputting the information code stream. And setting the communication modes of the comprehensive electronic data multiplexing module and the deep space answering machine through ground uploading instructions. The comprehensive electronic data multiplexing module comprises a data storage module, the deep space transponder comprises a data processing module, and the comprehensive electronic data multiplexing module outputs a corresponding information code stream from the data storage module to the deep space transponder data processing module according to the instruction.
Step 2: and matching the information code stream to obtain a radio frequency signal. And the deep space transponder data processing module processes the information code stream by adopting a corresponding modulation mode according to the set communication mode to obtain a baseband signal, and modulates the baseband signal into a radio frequency signal and sends the radio frequency signal to the amplifier.
Step 3: and amplifying the power of the radio frequency signal. After being amplified by the amplifier, the radio frequency signals transmit effective data to the ground through the corresponding antenna ports.
Step 4: and completing radio frequency receiving and transmitting according to the radio frequency signal of power amplification.
According to the invention, through ground setting, the switching of the measurement and control mode and the data transmission mode is completed in one software and hardware platform.
In the step 1, the setting of the comprehensive electronic data multiplexing module comprises information source, packet scheduling and multiplexing code rate switching, and the setting of the deep space transponder communication mode comprises data modulation mode, uplink and downlink coherent state, ranging signal and data code rate switching.
Taking a Mars circulator measurement and control data transmission subsystem as an example, as shown in fig. 2, the function of measurement and control data transmission is realized in the FPGA software of the transponder, and the switching is performed through the setting of the working mode. DOR English is fully called Differential One-Way Range, chinese translation Differential One-Way distance measurement. The FPGA is named Field Programmable Gate Array, and the Chinese translation is a field programmable gate array. The analog-to-digital converter is abbreviated as ADC. Fd denotes doppler frequency, where F denotes frequency and d denotes doppler. The digital-to-analog converter is abbreviated as DAC. IF represents an intermediate frequency signal.
As shown in FIG. 1, the measurement and control data transmission integrated information flow of the Mars surrounding device consists of four links, namely a comprehensive electronic data multiplexing module, a deep space transponder, an amplifier and an antenna. The method comprises the following steps: the ground station sets the communication mode of the spark surrounding device according to different on-orbit working conditions in the form of an up-filling instruction. And after receiving the instruction, the integrated electronic multiplexing module subsystem reads out the corresponding information code stream from the data storage module. When the measurement and control mode is set, the multiplexing module outputs a pure telemetry information stream from Flash; when the data transmission mode is set, the multiplexing module outputs the mixed information stream of the telemetry information and the load data from the Flash and the solid memory according to the proportion of 1:3 respectively, and the mixed information stream is sent to the local cache module of the answering machine to wait for processing.
As shown in fig. 3, the measurement and control mode and the data transmission mode can be switched by the ground command, and the transponder is switched to the data transmission mode, which requires the following commands: cutting a data transmission mode by a transponder, setting a multiplexing code rate, switching packet scheduling, cutting a non-coherent mode by the transponder, and setting the data transmission code rate; the transponder is switched to the measurement and control mode, and the following instructions are needed: and (3) switching a measurement and control mode by a transponder, setting multiplexing code rate, switching packet scheduling, switching a coherent mode by the transponder, and setting telemetry code rate.
As shown in fig. 4, after the output signal of the transponder is selected by the microwave switch, the output signal is amplified by the 100W traveling wave amplifier, and then the output signal is output by the corresponding antenna selected by the waveguide switch. In general, when in the measurement and control mode, a low gain antenna and a medium gain antenna are adopted for transmitting, and when in the data transmission mode, a high gain antenna is adopted for transmitting.
The downlink telemetry code rate is set to 3 grades, 16384bps,1024bps and 32bps, 16384bps is used by default in the normal mode, and 32bps is used in the emergency mode. The data transmission QPSK code rate is set to 3 grades, 4096kbps,2048kbps,1024kbps, and the data transmission BPSK code rate is set to 6 grades, 16kbps, 32kbps, 64kbps, 128kbps, 256kbps and 512kbps, and the selected code rate and the on-orbit data transmission link capacity are determined, wherein all the code rates in the measurement and control and data transmission modes can be freely set and expanded by software.
The invention relates to the field of deep space exploration communication, and can better solve the problem of communication to the ground by using a measurement and control data transmission integrated implementation method under the condition of extremely intense resources such as weight on a device, power supply, installation space and the like. The invention relates to a measurement and control data transmission integrated implementation method of a Mars circulator, which comprises a comprehensive electronic data multiplexing module, a deep space transponder, an amplifier module and an antenna subsystem. The comprehensive electronic data multiplexing module transmits the information code stream to the deep space transponder through a bus (RS 422 bus) according to the ground injection command, the deep space transponder sets a response mode to match the information code stream through the ground injection command, the multiplexing amplifier channel transmits radio frequency signals to the transmitting antenna subsystem, and different antennas are selected according to different communication modes to complete radio frequency transceiving. RS422 represents the electrical characteristics of the balanced voltage digital interface circuit. The invention multiplexes the hardware of the on-board measurement and control channel and the data transmission channel, the software function is realized by the deep space answering machine, and the downloading of different data types is realized by different service switching, thereby reducing the weight of the detector, saving the on-board resources and improving the efficiency of the on-board data transmission.
Those skilled in the art will appreciate that the invention provides a system and its individual devices, modules, units, etc. that can be implemented entirely by logic programming of method steps, in addition to being implemented as pure computer readable program code, in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units for realizing various functions included in the system can also be regarded as structures in the hardware component; means, modules, and units for implementing the various functions may also be considered as either software modules for implementing the methods or structures within hardware components.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (8)
1. The system is characterized by comprising a multiplexing module, a transponder, an amplifier and an antenna subsystem;
the multiplexing module outputs an information code stream and transmits the information code stream to the transponder;
the transponder is matched with the information code stream to obtain a radio frequency signal after modulation, and the radio frequency signal is transmitted to the amplifier;
the multiplexing module selects different information code streams to be transmitted to the transponder through the data interface according to the measurement and control or data transmission working modes;
the communication mode and the multiplexing module of the transponder are set by a ground measurement and control system according to a task type uploading instruction;
the multiplexing module comprises a data storage module, the transponder comprises a data processing module, and the multiplexing module outputs a corresponding information code stream from the data storage module to the data processing module according to the ground uploading instruction;
the data processing module processes the information code stream by adopting a corresponding modulation mode according to the set communication mode to obtain a baseband signal, and modulates the baseband signal into a radio frequency signal and sends the radio frequency signal to the amplifier;
the amplifier amplifies the radio frequency signal and transmits the radio frequency signal with amplified power to the antenna subsystem;
the antenna subsystem transmits the radio frequency signals transmitted by the amplifier to the ground through the antenna.
2. The system of integrating measurement and control data transmission of a Mars concentrator according to claim 1, wherein the radio frequency signal comprises a measurement and control signal or a data transmission signal; and the amplifier completes the power amplification of the measurement and control signal or the data transmission signal, and the measurement and control signal or the data transmission signal after the power amplification is transmitted to the antenna subsystem.
3. The system of integrating measurement and control data transmission of a Mars concentrator according to claim 1, wherein the data storage module comprises a flash memory and a solid memory, the flash memory stores telemetry information, and the solid memory stores load data;
the information code stream output by the multiplexing module comprises a telemetry information stream and a mixed stream; the telemetry information stream includes telemetry information; the mixed stream includes the proportionally distributed telemetry information and payload data.
4. The system of claim 1, wherein the communication mode comprises a measurement and control mode and a data transmission mode.
5. The system for integrating measurement and control data transmission of the Mars circulator according to claim 4, wherein the modulation mode in the measurement and control mode comprises PM modulation; the modulation mode in the data transmission mode comprises QPSK modulation code rate and BPSK modulation code rate.
6. The system of integration of measurement and control data transmission of a Mars surround as in claim 2, wherein the amplifier comprises a high power traveling wave tube amplifier.
7. The system of claim 1, wherein the antenna subsystem is configured as a low gain antenna, a medium gain antenna, and a high gain directional antenna.
8. The method for integrating measurement and control data transmission of the Mars surrounding device is characterized by comprising the following steps of:
step 1: outputting an information code stream;
step 2: matching and processing the information code stream to obtain a radio frequency signal;
step 3: amplifying the power of the radio frequency signal;
step 4: and completing radio frequency receiving and transmitting according to the radio frequency signal of power amplification.
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| EP1091506A2 (en) * | 1999-10-01 | 2001-04-11 | Ascom Systec AG | A hybrid CDMA and TDMA radio access scheme for personal satellite communication systems |
| CN111950870A (en) * | 2020-07-28 | 2020-11-17 | 中国西安卫星测控中心 | Space-ground-based measurement and control data transmission resource integrated on-demand scheduling method and system |
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