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CN114640564B - Method and system for generating orthogonal segmentation continuous frequency modulation wave - Google Patents

Method and system for generating orthogonal segmentation continuous frequency modulation wave Download PDF

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CN114640564B
CN114640564B CN202011488591.3A CN202011488591A CN114640564B CN 114640564 B CN114640564 B CN 114640564B CN 202011488591 A CN202011488591 A CN 202011488591A CN 114640564 B CN114640564 B CN 114640564B
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subcarrier
frequency modulation
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modulation wave
continuous frequency
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CN114640564A (en
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李映辉
王继良
谢鹏瑾
刘云浩
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Tsinghua University
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2626Arrangements specific to the transmitter only

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

The invention provides a method and a system for generating orthogonal segmentation continuous frequency modulation waves, comprising the following steps: acquiring a preset segmented continuous frequency modulation wave; and calculating by adopting a preset arrangement set based on the preset segmented frequency modulation wave to obtain a group of pairwise orthogonal segmented continuous frequency modulation wave sets. The generation algorithm of the segmented continuous frequency modulation wave provided by the invention can generate any plurality of pairwise orthogonal segmented frequency modulation continuous waves by setting various parameters of the subcarriers, and is used for supporting the requirement of high concurrence communication.

Description

一种正交分段连续调频波的生成方法及系统A method and system for generating orthogonal segmented continuous frequency modulation wave

技术领域Technical Field

本发明涉及信息通信技术领域,尤其涉及一种正交分段连续调频波的生成方法及系统。The present invention relates to the field of information communication technology, and in particular to a method and system for generating an orthogonal segmented continuous frequency modulation wave.

背景技术Background technique

低功耗广域网技术是一种新型网络技术,可以提供一种超低功耗、长距离的网络通信方式,在智慧农业、智慧城市、工业互联网等典型物联网应用中具有广阔的应用前景。Low-power wide area network technology is a new type of network technology that can provide an ultra-low power, long-distance network communication method. It has broad application prospects in typical Internet of Things applications such as smart agriculture, smart cities, and industrial Internet.

在低功耗广域网中,节点通过网关接入到网络,节点和网关之间的信号调制和解调方式决定了网络的基本性能。已有的低功耗广域网计算,如LoRa,使用调频连续波(CSS)的方式进行信号调制,通过将整个频谱上的能量集中到单一频率,可以实现极低信噪比下的信号传输,进而实现低功耗和长距离的网络通信。但是,在多节点并发传输的场景下,不同节点发送的调频连续波会互相干扰,导致解码失败,因此,多个节点无法并行发送数据包,只能通过时间维度上的调度避免信号干扰。其中,对于调频信号的生成,尚未有比较理想的生成方法。In a low-power wide area network, nodes are connected to the network through a gateway, and the signal modulation and demodulation methods between nodes and gateways determine the basic performance of the network. Existing low-power wide area network computing, such as LoRa, uses frequency modulated continuous wave (CSS) to modulate signals. By concentrating the energy on the entire spectrum to a single frequency, signal transmission with extremely low signal-to-noise ratio can be achieved, thereby achieving low power consumption and long-distance network communication. However, in the scenario of concurrent transmission of multiple nodes, the frequency modulated continuous waves sent by different nodes will interfere with each other, resulting in decoding failure. Therefore, multiple nodes cannot send data packets in parallel, and can only avoid signal interference through scheduling in the time dimension. Among them, there is no ideal generation method for the generation of frequency modulated signals.

发明内容Summary of the invention

本发明提供一种正交分段连续调频波的生成方法及系统,用以解决现有技术中无法在同一信道上同时传输数据的缺陷。The present invention provides a method and system for generating an orthogonal segmented continuous frequency modulation wave, which are used to solve the defect in the prior art that data cannot be transmitted simultaneously on the same channel.

第一方面,本发明提供一种正交分段连续调频波的生成方法,包括:In a first aspect, the present invention provides a method for generating an orthogonal segmented continuous frequency modulation wave, comprising:

获取预设分段连续调频波;Get the preset segmented continuous frequency modulation wave;

基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。Based on the preset segmented frequency modulation wave, a preset arrangement set is used for calculation to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other.

进一步地,所述获取预设分段连续调频波,具体包括:Furthermore, the obtaining of a preset segmented continuous frequency modulation wave specifically includes:

获取具有预设个数、相等预设时长且频域不重叠的子载波,其中每个子载波为连续调频波;Acquire subcarriers with a preset number, equal preset duration and non-overlapping frequency domains, wherein each subcarrier is a continuous frequency modulation wave;

设置每个子载波的子载波周期、子载波带宽和子载波起始频率,由所述子载波带宽除以所述子载波周期得到频率随时间变化速率,基于所述子载波带宽、所述子载波周期、所述频率随时间变化速率和子载波起始频率,得到每个子载波信号表示;Setting a subcarrier period, a subcarrier bandwidth and a subcarrier start frequency of each subcarrier, obtaining a frequency change rate over time by dividing the subcarrier bandwidth by the subcarrier period, and obtaining a signal representation of each subcarrier based on the subcarrier bandwidth, the subcarrier period, the frequency change rate over time and the subcarrier start frequency;

基于所述预设个数获得第一数字排列,基于所述第一数字排列得到任一个子载波起始频率,将所有子载波起始频率代入所述每个子载波信号表示中,得到所述第一数字排列对应的所述预设分段连续调频波。A first digital arrangement is obtained based on the preset number, a starting frequency of any subcarrier is obtained based on the first digital arrangement, all subcarrier starting frequencies are substituted into each subcarrier signal representation, and the preset segmented continuous frequency modulation wave corresponding to the first digital arrangement is obtained.

进一步地,所述第一预设数字排列的排序和所述具有预设个数的子载波一一对应。Furthermore, the order of the first preset digital arrangement corresponds one-to-one to the subcarriers having the preset number.

进一步地,所述基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合,具体包括:Furthermore, based on the preset segmented frequency modulation wave, a preset permutation set is used for calculation to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other, specifically including:

基于所述预设个数获得第二数字排列,由多个第二数字排列得到数字排列集合,令所述预设个数为质数;Obtaining a second digital arrangement based on the preset number, obtaining a digital arrangement set from a plurality of second digital arrangements, and setting the preset number to be a prime number;

获取任意的第一整数和第二整数,基于所述第一整数和所述第二整数得到所述第二数字排列的第一线性表达式;Obtaining any first integer and second integer, and obtaining a first linear expression of the second number arrangement based on the first integer and the second integer;

获取任意的第三整数和第四整数,基于所述第三整数、所述第四整数和所述第一线性表达式,得到第二线性表达式,根据所述第二线性表达式得到的新排列插入到所述第二数字排列对应的集合中;Obtaining any third integer and fourth integer, obtaining a second linear expression based on the third integer, the fourth integer and the first linear expression, and inserting a new arrangement obtained according to the second linear expression into a set corresponding to the second digital arrangement;

根据所述数字排列集合中的预设个数减1个排列,生成对应的预设个数减1个分段连续调频波。According to the preset number minus 1 arrangement in the digital arrangement set, a corresponding preset number minus 1 segmented continuous frequency modulation wave is generated.

进一步地,所述获取任意的第一整数和第二整数,基于所述第一整数和所述第二整数得到所述第二数字排列的第一线性表达式,具体包括:Furthermore, the acquiring of any first integer and second integer, and obtaining a first linear expression of the second digital arrangement based on the first integer and the second integer, specifically includes:

由所述第一整数分别乘以所述第二数字排列中的每个分项之后和所述第二整数相加,并将相加后的每个分项分别和预设个数取余后进行相乘,得到所述第一线性表达式。The first linear expression is obtained by multiplying each item in the second digital arrangement by the first integer and then adding the resultant items to the second integer, and multiplying each item after the addition by a preset number modulo the resultant items, thereby obtaining the first linear expression.

进一步地,获取任意的第三整数和第四整数,基于所述第三整数、所述第四整数和所述第一线性表达式,得到第二线性表达式,具体包括:Further, obtaining any third integer and fourth integer, and obtaining a second linear expression based on the third integer, the fourth integer and the first linear expression specifically includes:

所述第三整数设置为从2到所述预设个数减1,所述第四整数为任意整数;The third integer is set to be from 2 to the preset number minus 1, and the fourth integer is an arbitrary integer;

将所述第三整数乘以所述第一线性表达式,加上所述第四整数,得到所述第二线性表达式。The third integer is multiplied by the first linear expression, and the fourth integer is added to obtain the second linear expression.

第二方面,本发明还提供一种正交分段连续调频波的生成系统,包括:In a second aspect, the present invention further provides a system for generating an orthogonal segmented continuous frequency modulation wave, comprising:

获取模块,用于获取预设分段连续调频波;An acquisition module, used for acquiring a preset segmented continuous frequency modulation wave;

计算模块,用于基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。The calculation module is used to perform calculation based on the preset segmented frequency modulation wave and adopt a preset arrangement set to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other.

进一步地,所述获取模块,具体用于:Furthermore, the acquisition module is specifically used to:

获取具有预设个数、相等预设时长且频域不重叠的子载波,其中每个子载波为连续调频波;Acquire subcarriers with a preset number, equal preset duration and non-overlapping frequency domains, wherein each subcarrier is a continuous frequency modulation wave;

设置每个子载波的子载波周期、子载波带宽和子载波起始频率,由所述子载波带宽除以所述子载波周期得到频率随时间变化速率,基于所述子载波带宽、所述子载波周期、所述频率随时间变化速率和子载波起始频率,得到每个子载波信号表示;Setting a subcarrier period, a subcarrier bandwidth and a subcarrier start frequency of each subcarrier, obtaining a frequency change rate over time by dividing the subcarrier bandwidth by the subcarrier period, and obtaining a signal representation of each subcarrier based on the subcarrier bandwidth, the subcarrier period, the frequency change rate over time and the subcarrier start frequency;

基于所述预设个数获得第一数字排列,基于所述第一数字排列得到任一个子载波起始频率,将所有子载波起始频率代入所述每个子载波信号表示中,得到所述第一数字排列对应的所述预设分段连续调频波。A first digital arrangement is obtained based on the preset number, a starting frequency of any subcarrier is obtained based on the first digital arrangement, all subcarrier starting frequencies are substituted into each subcarrier signal representation, and the preset segmented continuous frequency modulation wave corresponding to the first digital arrangement is obtained.

第三方面,本发明还提供一种电子设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述程序时实现如上述任一种所述正交分段连续调频波的生成方法的步骤。In a third 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 steps of the method for generating an orthogonal segmented continuous frequency modulation wave as described in any one of the above are implemented.

第四方面,本发明还提供一种非暂态计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现如上述任一种所述正交分段连续调频波的生成方法的步骤。In a fourth 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 steps of the method for generating an orthogonal segmented continuous frequency modulation wave as described in any one of the above.

本发明提供的正交分段连续调频波的生成方法及系统,通过设置子载波各种参数,可以生成任意多个两两正交的分段调频连续波,用于支持高并发通信的需求。The orthogonal segmented continuous frequency modulation wave generation method and system provided by the present invention can generate any number of segmented frequency modulation continuous waves that are orthogonal to each other by setting various subcarrier parameters, so as to support the demand of high concurrent communication.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

为了更清楚地说明本发明或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。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.

图1是本发明提供的正交分段连续调频波的生成方法的流程示意图;FIG1 is a schematic flow chart of a method for generating an orthogonal segmented continuous frequency modulation wave provided by the present invention;

图2是本发明提供的正交分段连续调频波的生成系统的结构示意图;FIG2 is a schematic structural diagram of a system for generating an orthogonal segmented continuous frequency modulation wave provided by the present invention;

图3是本发明提供的电子设备的结构示意图。FIG. 3 is a schematic diagram of the structure of an electronic device provided by the present invention.

具体实施方式Detailed ways

为使本发明的目的、技术方案和优点更加清楚,下面将结合本发明中的附图,对本发明中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。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.

图1是本发明提供的正交分段连续调频波的生成方法的流程示意图,如图1所示,包括:FIG1 is a flow chart of a method for generating an orthogonal segmented continuous frequency modulation wave provided by the present invention, as shown in FIG1 , comprising:

S1,获取预设分段连续调频波;S1, obtaining a preset segmented continuous frequency modulation wave;

S2,基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。S2, based on the preset segmented frequency modulation wave, a preset arrangement set is used to perform calculation to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other.

具体地,首先生成满足一定条件的分段连续调频波,采用预设排列集合对分段连续调频波进行计算,生成正交分段连续调频波。Specifically, a segmented continuous frequency modulation wave that meets certain conditions is first generated, and the segmented continuous frequency modulation wave is calculated using a preset arrangement set to generate an orthogonal segmented continuous frequency modulation wave.

本发明通过设置分段连续调频波中的子载波各种参数,可以生成任意多个两两正交的分段调频连续波,用于支持高并发通信的需求。The present invention can generate any number of segmented frequency modulation continuous waves that are orthogonal to each other by setting various parameters of subcarriers in the segmented continuous frequency modulation wave, so as to support the demand of high concurrent communication.

基于上述实施例,该方法中步骤S1具体包括:Based on the above embodiment, step S1 in the method specifically includes:

获取具有预设个数、相等预设时长且频域不重叠的子载波,其中每个子载波为连续调频波;Acquire subcarriers with a preset number, equal preset duration and non-overlapping frequency domains, wherein each subcarrier is a continuous frequency modulation wave;

设置每个子载波的子载波周期、子载波带宽和子载波起始频率,由所述子载波带宽除以所述子载波周期得到频率随时间变化速率,基于所述子载波带宽、所述子载波周期、所述频率随时间变化速率和子载波起始频率,得到每个子载波信号表示;Setting a subcarrier period, a subcarrier bandwidth and a subcarrier start frequency of each subcarrier, obtaining a frequency change rate over time by dividing the subcarrier bandwidth by the subcarrier period, and obtaining a signal representation of each subcarrier based on the subcarrier bandwidth, the subcarrier period, the frequency change rate over time and the subcarrier start frequency;

基于所述预设个数获得第一数字排列,基于所述第一数字排列得到任一个子载波起始频率,将所有子载波起始频率代入所述每个子载波信号表示中,得到所述第一数字排列对应的所述预设分段连续调频波。A first digital arrangement is obtained based on the preset number, a starting frequency of any subcarrier is obtained based on the first digital arrangement, all subcarrier starting frequencies are substituted into each subcarrier signal representation, and the preset segmented continuous frequency modulation wave corresponding to the first digital arrangement is obtained.

其中,所述第一数字排列的排序和所述具有预设个数的子载波一一对应。The order of the first digital arrangement corresponds one-to-one to the subcarriers having the preset number.

具体地,本发明假设一个分段连续调频波由M个子载波组成,带宽为B,周期为T,可以通过以下方式生成分段连续调频波:Specifically, the present invention assumes that a segmented continuous frequency modulation wave is composed of M subcarriers, the bandwidth is B, and the period is T. The segmented continuous frequency modulation wave can be generated in the following manner:

设s={s[0],s[1],…,s[M-1}是数字0到M-1的一个排列,则可以根据s生成一个分段连续调频波scs:Assume s = {s[0], s[1], ..., s[M-1} is a sequence of numbers 0 to M-1, then a segmented continuous frequency modulation wave sc s can be generated based on s:

scs={cs[0],cs[1],…,cs[M-1]}sc s ={c s[0] ,c s[1] ,…,c s[M-1] }

其中,对于i=0……M-1,有:Among them, for i=0...M-1, we have:

本发明通过生成具有预设条件的数字排列的分段连续调频波,为后续生成正交分段连续调频波提供了信号输入。The present invention provides a signal input for the subsequent generation of an orthogonal segmented continuous frequency modulation wave by generating a segmented continuous frequency modulation wave with a digital arrangement having preset conditions.

基于上述任一实施例,该方法中步骤S2具体包括:Based on any of the above embodiments, step S2 in the method specifically includes:

基于所述预设个数获得第二数字排列,由多个第二数字排列得到数字排列集合,令所述预设个数为质数;Obtaining a second digital arrangement based on the preset number, obtaining a digital arrangement set from a plurality of second digital arrangements, and setting the preset number to be a prime number;

获取任意的第一整数和第二整数,基于所述第一整数和所述第二整数得到所述第二数字排列的第一线性表达式;Obtaining any first integer and second integer, and obtaining a first linear expression of the second number arrangement based on the first integer and the second integer;

获取任意的第三整数和第四整数,基于所述第三整数、所述第四整数和所述第一线性表达式,得到第二线性表达式,根据所述第二线性表达式得到的新排列插入到所述第二数字排列对应的集合中;Obtaining any third integer and fourth integer, obtaining a second linear expression based on the third integer, the fourth integer and the first linear expression, and inserting a new arrangement obtained according to the second linear expression into a set corresponding to the second digital arrangement;

根据所述数字排列集合中的预设个数减1的排列,生成对应的预设个数减1的分段连续调频波。According to the arrangement of the preset number minus 1 in the digital arrangement set, a corresponding segmented continuous frequency modulation wave of the preset number minus 1 is generated.

其中,所述获取任意的第一整数和第二整数,基于所述第一整数和所述第二整数得到所述第二数字排列的第一线性表达式,具体包括:The acquiring of any first integer and second integer, and obtaining a first linear expression of the second digital arrangement based on the first integer and the second integer, specifically includes:

由所述第一整数分别乘以所述第二数字排列中的每个分项之后和所述第二整数相加,并将相加后的每个分项分别和预设个数取余后进行相乘,得到所述第一线性表达式。The first linear expression is obtained by multiplying each item in the second digital arrangement by the first integer and then adding the resultant items to the second integer, and multiplying each item after the addition by a preset number modulo the resultant items, thereby obtaining the first linear expression.

其中,获取任意的第三整数和第四整数,基于所述第三整数、所述第四整数和所述第一线性表达式,得到第二线性表达式,具体包括:The method of obtaining an arbitrary third integer and a fourth integer, and obtaining a second linear expression based on the third integer, the fourth integer and the first linear expression specifically includes:

所述第三整数设置为从2到所述预设个数减1,所述第四整数为任意整数;The third integer is set to be from 2 to the preset number minus 1, and the fourth integer is an arbitrary integer;

将所述第三整数乘以所述第一线性表达式,加上所述第四整数,得到所述第二线性表达式。The third integer is multiplied by the first linear expression, and the fourth integer is added to obtain the second linear expression.

具体地,本发明对于正交分段连续调频波的生成,首先生成一个0到M-1的排列集合,然后根据前述生成对应的分段连续调频波是两两正交的。排列集合生成算法如下:Specifically, for the generation of orthogonal segmented continuous frequency modulation waves, the present invention first generates a permutation set from 0 to M-1, and then generates corresponding segmented continuous frequency modulation waves that are orthogonal in pairs according to the above. The permutation set generation algorithm is as follows:

首先要求M是质数;First, M is required to be a prime number;

具体算法:Specific algorithm:

1)设s0={s0[0],s0[0],……,s0[M-1]}是0到M-1的一个任意的排列,集合S={s0};1) Let s 0 ={s 0 [0],s 0 [0], ...,s 0 [M-1]} be an arbitrary permutation from 0 to M-1, and let the set S ={s 0 };

2)对于任意的整数a和b,定义以下操作:2) For any integers a and b, define the following operations:

s0*a+b={(s0[0]*a+b)modM,…,(s0[M-1]*a+b)mod M};s 0 *a+b={(s 0 [0]*a+b)modM,…,(s 0 [M-1]*a+b)modM};

3)取i从2到M-1,取j为任意的整数,按照以下方法计算得到M-2新的排列:3) Take i from 2 to M-1, take j as an arbitrary integer, and calculate M-2 new permutations as follows:

si=s0*i+j sis0 *i+j

再将si插入集合S中;Then insert si into the set S;

4)根据集合S中的M-1个排列,按照前述生成分段连续调频波的步骤,生成M-1个分段连续调频波。4) Based on the M-1 permutations in the set S, generate M-1 segmented continuous frequency modulation waves according to the aforementioned steps of generating segmented continuous frequency modulation waves.

由于最大的质数是无穷大,因此,可以生成无限多个两两正交的分段连续调频波,算法流程如下所示:Since the largest prime number is infinite, it is possible to generate an infinite number of pairwise orthogonal segmented continuous frequency modulation waves. The algorithm flow is as follows:

Data:M as the number of sub-chirps in a scatter chirpData:M as the number of sub-chirps in a scatter chirp

Result:SC as a set of M-1scatter chirpsResult:SC as a set of M-1scatter chirps

本发明生成的相互正交的分段连续调频波,能有效支持高并发通信。The mutually orthogonal segmented continuous frequency modulation waves generated by the present invention can effectively support high-concurrency communications.

下面对本发明提供的正交分段连续调频波的生成系统进行描述,下文描述的正交分段连续调频波的生成系统与上文描述的正交分段连续调频波的生成方法可相互对应参照。The generation system of the orthogonal segmented continuous frequency modulation wave provided by the present invention is described below. The generation system of the orthogonal segmented continuous frequency modulation wave described below and the generation method of the orthogonal segmented continuous frequency modulation wave described above can be referred to each other.

图2是本发明提供的正交分段连续调频波的生成系统的结构示意图,如图2所示,包括:获取模块21和计算模块22;其中:FIG2 is a schematic diagram of the structure of the orthogonal segmented continuous frequency modulation wave generation system provided by the present invention, as shown in FIG2, comprising: an acquisition module 21 and a calculation module 22; wherein:

获取模块21用于获取预设分段连续调频波;计算模块22用于基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。The acquisition module 21 is used to acquire a preset segmented continuous frequency modulation wave; the calculation module 22 is used to calculate based on the preset segmented continuous frequency modulation wave using a preset arrangement set to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other.

本发明通过设置分段连续调频波中的子载波各种参数,可以生成任意多个两两正交的分段连续调频波,用于支持高并发通信的需求。The present invention can generate any number of segmented continuous frequency modulation waves that are orthogonal to each other by setting various parameters of subcarriers in the segmented continuous frequency modulation wave, so as to support the demand of high concurrent communication.

基于上述实施例,所述获取模块21具体用于:Based on the above embodiment, the acquisition module 21 is specifically used for:

获取具有预设个数、相等预设时长且频域不重叠的子载波,其中每个子载波为连续调频波;Acquire subcarriers with a preset number, equal preset duration and non-overlapping frequency domains, wherein each subcarrier is a continuous frequency modulation wave;

设置每个子载波的子载波周期、子载波带宽和子载波起始频率,由所述子载波带宽除以所述子载波周期得到频率随时间变化速率,基于所述子载波带宽、所述子载波周期、所述频率随时间变化速率和子载波起始频率,得到每个子载波信号表示;Setting a subcarrier period, a subcarrier bandwidth and a subcarrier start frequency of each subcarrier, obtaining a frequency change rate over time by dividing the subcarrier bandwidth by the subcarrier period, and obtaining a signal representation of each subcarrier based on the subcarrier bandwidth, the subcarrier period, the frequency change rate over time and the subcarrier start frequency;

基于所述预设个数获得第一数字排列,基于所述第一数字排列得到任一个子载波起始频率,将所有子载波起始频率代入所述每个子载波信号表示中,得到所述第一数字排列对应的所述预设分段连续调频波。A first digital arrangement is obtained based on the preset number, a starting frequency of any subcarrier is obtained based on the first digital arrangement, all subcarrier starting frequencies are substituted into each subcarrier signal representation, and the preset segmented continuous frequency modulation wave corresponding to the first digital arrangement is obtained.

图3示例了一种电子设备的实体结构示意图,如图3所示,该电子设备可以包括:处理器(processor)310、通信接口(CommunicationsInterface)320、存储器(memory)330和通信总线340,其中,处理器310,通信接口320,存储器330通过通信总线340完成相互间的通信。处理器310可以调用存储器330中的逻辑指令,以执行正交分段连续调频波的生成方法,该方法包括:获取预设分段连续调频波;基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。FIG3 illustrates a schematic diagram of the physical structure of an electronic device. As shown in FIG3 , the electronic device may include: a processor 310, a communications interface 320, a memory 330 and a communication bus 340, wherein the processor 310, the communications interface 320 and the memory 330 communicate with each other through the communication bus 340. The processor 310 may call the logic instructions in the memory 330 to execute a method for generating an orthogonal segmented continuous frequency modulation wave, the method comprising: obtaining a preset segmented continuous frequency modulation wave; based on the preset segmented frequency modulation wave, using a preset permutation set to perform calculations to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other.

此外,上述的存储器330中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-OnlyMemory)、随机存取存储器(RAM,RandomAccessMemory)、磁碟或者光盘等各种可以存储程序代码的介质。In addition, the logic instructions in the above-mentioned memory 330 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 is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable 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, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

另一方面,本发明还提供一种计算机程序产品,所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序,所述计算机程序包括程序指令,当所述程序指令被计算机执行时,计算机能够执行上述各方法所提供的正交分段连续调频波的生成方法,该方法包括:获取预设分段连续调频波;基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the method for generating an orthogonal segmented continuous frequency modulation wave provided by the above methods, the method including: obtaining a preset segmented continuous frequency modulation wave; based on the preset segmented frequency modulation wave, using a preset permutation set for calculation to obtain a set of segmented continuous frequency modulation waves that are orthogonal to each other.

又一方面,本发明还提供一种非暂态计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现以执行上述各提供的正交分段连续调频波的生成方法,该方法包括:获取预设分段连续调频波;基于所述预设分段调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the above-mentioned methods for generating orthogonal segmented continuous frequency modulation waves, the methods comprising: obtaining a preset segmented continuous frequency modulation wave; based on the preset segmented frequency modulation wave, using a preset permutation set for calculation to obtain a set of segmented continuous frequency modulation waves that are orthogonal to each other.

以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下,即可以理解并实施。The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed 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 scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.

通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件。基于这样的理解,上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品可以存储在计算机可读存储介质中,如ROM/RAM、磁碟、光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。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.

最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。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 (8)

1.一种正交分段连续调频波的生成方法,其特征在于,包括:1. A method for generating an orthogonal segmented continuous frequency modulation wave, characterized by comprising: 获取预设分段连续调频波,具体包括:Get the preset segmented continuous frequency modulation wave, including: 获取具有预设个数、相等预设时长且频域不重叠的子载波,其中每个子载波为连续调频波;Acquire subcarriers with a preset number, equal preset duration and non-overlapping frequency domains, wherein each subcarrier is a continuous frequency modulation wave; 设置每个子载波的子载波周期、子载波带宽和子载波起始频率,由所述子载波带宽除以所述子载波周期得到频率随时间变化速率,基于所述子载波带宽、所述子载波周期、所述频率随时间变化速率和子载波起始频率,得到每个子载波信号表示;Setting a subcarrier period, a subcarrier bandwidth and a subcarrier start frequency of each subcarrier, obtaining a frequency change rate over time by dividing the subcarrier bandwidth by the subcarrier period, and obtaining a signal representation of each subcarrier based on the subcarrier bandwidth, the subcarrier period, the frequency change rate over time and the subcarrier start frequency; 基于所述预设个数获得第一数字排列,基于所述第一数字排列得到任一个子载波起始频率,将所有子载波起始频率代入所述每个子载波信号表示中,得到所述第一数字排列对应的所述预设分段连续调频波;Obtain a first digital arrangement based on the preset number, obtain a starting frequency of any subcarrier based on the first digital arrangement, substitute all subcarrier starting frequencies into each subcarrier signal representation, and obtain the preset segmented continuous frequency modulation wave corresponding to the first digital arrangement; 基于所述预设分段连续调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。Based on the preset segmented continuous frequency modulation wave, a preset arrangement set is used for calculation to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other. 2.根据权利要求1所述的正交分段连续调频波的生成方法,其特征在于,所述第一数字排列的排序和所述具有预设个数的子载波一一对应。2. The method for generating an orthogonal segmented continuous frequency modulation wave according to claim 1 is characterized in that the order of the first digital arrangement corresponds one-to-one to the subcarriers having a preset number. 3.根据权利要求1所述的正交分段连续调频波的生成方法,其特征在于,所述基于所述预设分段连续调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合,具体包括:3. The method for generating an orthogonal segmented continuous frequency modulation wave according to claim 1, characterized in that the step of calculating based on the preset segmented continuous frequency modulation wave using a preset permutation set to obtain a set of segmented continuous frequency modulation waves that are orthogonal to each other specifically comprises: 基于所述预设个数获得第二数字排列,由多个第二数字排列得到数字排列集合,令所述预设个数为质数;Obtaining a second digital arrangement based on the preset number, obtaining a digital arrangement set from a plurality of second digital arrangements, and setting the preset number to be a prime number; 获取任意的第一整数和第二整数,基于所述第一整数和所述第二整数得到所述第二数字排列的第一线性表达式;Obtaining any first integer and second integer, and obtaining a first linear expression of the second number arrangement based on the first integer and the second integer; 获取任意的第三整数和第四整数,基于所述第三整数、所述第四整数和所述第一线性表达式,得到第二线性表达式,根据所述第二线性表达式得到的新排列插入到所述第二数字排列对应的集合中;Obtaining any third integer and fourth integer, obtaining a second linear expression based on the third integer, the fourth integer and the first linear expression, and inserting a new arrangement obtained according to the second linear expression into a set corresponding to the second digital arrangement; 根据所述数字排列集合中的预设个数减1个排列,生成对应的预设个数减1个分段连续调频波。According to the preset number minus 1 arrangement in the digital arrangement set, a corresponding preset number minus 1 segmented continuous frequency modulation wave is generated. 4.根据权利要求3所述的正交分段连续调频波的生成方法,其特征在于,所述获取任意的第一整数和第二整数,基于所述第一整数和所述第二整数得到所述第二数字排列的第一线性表达式,具体包括:4. The method for generating an orthogonal segmented continuous frequency modulation wave according to claim 3, wherein the step of obtaining an arbitrary first integer and a second integer and obtaining a first linear expression of the second digital arrangement based on the first integer and the second integer specifically comprises: 由所述第一整数分别乘以所述第二数字排列中的每个分项之后和所述第二整数相加,并将相加后的结果分别对预设个数取余,得到所述第一线性表达式。The first linear expression is obtained by multiplying the first integer by each item in the second digital arrangement and adding the resultant to the second integer, and taking the modulus of the addition result by a preset number. 5.根据权利要求3所述的正交分段连续调频波的生成方法,其特征在于,获取任意的第三整数和第四整数,基于所述第三整数、所述第四整数和所述第一线性表达式,得到第二线性表达式,具体包括:5. The method for generating an orthogonal segmented continuous frequency modulation wave according to claim 3, characterized in that obtaining an arbitrary third integer and a fourth integer, and obtaining a second linear expression based on the third integer, the fourth integer and the first linear expression, specifically comprises: 所述第三整数设置为从2到所述预设个数减1,所述第四整数为任意整数;The third integer is set to be from 2 to the preset number minus 1, and the fourth integer is an arbitrary integer; 将所述第三整数乘以所述第一线性表达式,加上所述第四整数,得到所述第二线性表达式。The third integer is multiplied by the first linear expression, and the fourth integer is added to obtain the second linear expression. 6.一种正交分段连续调频波的生成系统,其特征在于,包括:6. A system for generating an orthogonal segmented continuous frequency modulation wave, characterized by comprising: 获取模块,用于获取预设分段连续调频波;An acquisition module, used for acquiring a preset segmented continuous frequency modulation wave; 所述获取模块,具体用于:The acquisition module is specifically used for: 获取具有预设个数、相等预设时长且频域不重叠的子载波,其中每个子载波为连续调频波;Acquire subcarriers with a preset number, equal preset duration and non-overlapping frequency domains, wherein each subcarrier is a continuous frequency modulation wave; 设置每个子载波的子载波周期、子载波带宽和子载波起始频率,由所述子载波带宽除以所述子载波周期得到频率随时间变化速率,基于所述子载波带宽、所述子载波周期、所述频率随时间变化速率和子载波起始频率,得到每个子载波信号表示;Setting a subcarrier period, a subcarrier bandwidth and a subcarrier start frequency of each subcarrier, obtaining a frequency change rate over time by dividing the subcarrier bandwidth by the subcarrier period, and obtaining a signal representation of each subcarrier based on the subcarrier bandwidth, the subcarrier period, the frequency change rate over time and the subcarrier start frequency; 基于所述预设个数获得第一数字排列,基于所述第一数字排列得到任一个子载波起始频率,将所有子载波起始频率代入所述每个子载波信号表示中,得到所述第一数字排列对应的所述预设分段连续调频波;Obtain a first digital arrangement based on the preset number, obtain a starting frequency of any subcarrier based on the first digital arrangement, substitute all subcarrier starting frequencies into each subcarrier signal representation, and obtain the preset segmented continuous frequency modulation wave corresponding to the first digital arrangement; 计算模块,用于基于所述预设分段连续调频波,采用预设排列集合进行计算,得到一组两两正交的分段连续调频波集合。The calculation module is used to perform calculation based on the preset segmented continuous frequency modulation wave and adopt a preset arrangement set to obtain a set of segmented continuous frequency modulation wave sets that are orthogonal to each other. 7.一种电子设备,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现如权利要求1至5任一项所述正交分段连续调频波的生成方法的步骤。7. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for generating an orthogonal segmented continuous frequency modulation wave as claimed in any one of claims 1 to 5 when executing the computer program. 8.一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现如权利要求1至5任一项所述正交分段连续调频波的生成方法的步骤。8. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method for generating an orthogonal segmented continuous frequency modulation wave as claimed in any one of claims 1 to 5 are implemented.
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