CN114338329B - Method, device, equipment and medium for realizing detection communication integrated waveform - Google Patents
Method, device, equipment and medium for realizing detection communication integrated waveform Download PDFInfo
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Abstract
The application relates to the technical field of communication, in particular to a method, a device, equipment and a medium for realizing detection and communication integrated waveforms, wherein the method comprises the following steps: determining the quantization precision of the continuous phase modulation CPM signal phase according to the target parameter, and generating a CPM phase sequence; based on the CPM phase sequence, obtaining a difference result of the quantized linear frequency modulation LFM signal according to the relevant parameters of the waveform; processing the differential result according to the parallel path number of the digital-to-analog converter to obtain processing data; accumulating according to at least one processing data to generate a phase sequence of the LFM signal; and adding the CPM signal phase and the phase sequence, and generating a baseband signal through a trigonometric function lookup table. Therefore, the problems that in the related art, the LFM-CPM integrated signal generating circuit adopts high-bit-width quantization to process the phase of an LFM signal, and adopts a bit cutting mode to add with the phase of the CPM signal, so that circuit resource consumption is large and the quantization precision of the phase of the CPM signal is lost are solved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a medium for implementing a detection communication integrated waveform.
Background
With the continuous development of the detection and communication technology, the difference between the detection and communication in the working frequency band and the system composition is gradually reduced, and the working frequency band for communication transmission and the detection use frequency are partially overlapped, so that the detection and communication integration is possible. The integrated design is implemented on detection and communication, hardware resources can be integrated and shared, deep information fusion can be performed, and the environment can be perceived while information is efficiently transferred.
The detection communication integrated waveform system is characterized in that radar waveforms and communication waveforms are overlapped in time and frequency domains, and radar signal processing and communication signal processing are respectively carried out on the integrated waveforms at a receiving end. The integrated waveform obtained by superposing the LFM (linear frequency modulation ) signal and the CPM (Continue Phase Modulation, continuous phase modulation) signal has the property of constant envelope, and can effectively avoid signal distortion caused by nonlinearity of a power amplifier, so that the integrated waveform has better detection performance and communication performance.
The method for generating the LFM-CPM integrated signal is to take the LFM signal as a carrier wave and load the CPM signal onto a phase, and the phase expression of the LFM signal is a quadratic function, so that the conventional circuit design needs to carry out high-order and wide quantization on the phase of the LFM signal, thereby avoiding the problems of accumulated errors, large circuit resource consumption and loss of the phase quantization precision of the CPM signal.
Disclosure of Invention
The application provides a method, a device, equipment and a medium for realizing detection communication integrated waveforms, which are used for solving the problems that in the related art, an LFM-CPM integrated signal generating circuit adopts high-bit wide quantization to process an LFM signal phase and adopts a bit cutting mode to add with the CPM signal phase, so that circuit resource consumption is large and the CPM signal phase quantization precision is lost.
An embodiment of a first aspect of the present application provides a method for implementing a detection communication integrated waveform, including the following steps:
determining the quantization precision of the continuous phase modulation CPM signal phase according to the target parameter, and generating a CPM phase sequence;
based on the CPM phase sequence, obtaining a difference result of the quantized linear frequency modulation LFM signal according to the relevant parameters of the waveform;
processing the differential result according to the parallel path number of the digital-to-analog converter to obtain processing data;
accumulating to generate a phase sequence of LFM signals according to at least one of the processed data;
and adding the CPM signal phase to the phase sequence, and generating a baseband signal through a trigonometric function lookup table.
Optionally, the determining the quantization accuracy of the CPM signal phase according to the target parameter includes:
and quantizing the phase of the radian system to an interval according to the sampling rate, the symbol period and the modulation index of the target parameter.
Optionally, the obtaining the differential result of the quantized LFM signal according to the relevant parameters of the waveform includes:
generating an LFM signal phase sequence with a real number identification according to the CPM phase sequence, and quantizing to obtain a quantized phase sequence;
and carrying out differential operation on the quantized phase sequence to obtain a differential sequence, and obtaining the differential result according to the effective length of the differential sequence.
Optionally, the processing the differential result according to the parallel path number of the digital-to-analog converter to obtain the processed data includes:
determining the sub-length of the differential sequence according to the parallel path number of the digital-to-analog converter;
and reducing the ratio of the parallel path number to the sub-length, and processing to obtain the processed data.
Optionally, the generating the phase sequence of the LFM signal according to at least one of the processing data accumulation includes:
and outputting the phase sequence of the generated LFM signals in parallel according to the parallel path number.
An embodiment of a second aspect of the present application provides an implementation apparatus for detecting a communication integrated waveform, including:
the CPM phase generation module is used for determining the quantization precision of the continuous phase modulation CPM signal phase according to the target parameter and generating a CPM phase sequence;
the acquisition module is used for acquiring a difference result of the quantized linear frequency modulation LFM signal according to the relevant parameters of the waveform based on the CPM phase sequence;
the processing module is used for processing the differential result according to the parallel path number of the digital-to-analog converter to obtain processing data;
the LFM phase generation module is used for generating a phase sequence of an LFM signal according to at least one processed data accumulation;
and the integrated waveform baseband generation module is used for adding the CPM signal phase and the phase sequence and generating a baseband signal through a trigonometric function lookup table.
Optionally, the CPM phase generating module is specifically configured to:
and quantizing the phase of the radian system to an interval according to the sampling rate, the symbol period and the modulation index of the target parameter.
Optionally, the acquiring module is specifically configured to:
generating an LFM signal phase sequence with a real number identification according to the CPM phase sequence, and quantizing to obtain a quantized phase sequence;
and carrying out differential operation on the quantized phase sequence to obtain a differential sequence, and obtaining the differential result according to the effective length of the differential sequence.
Optionally, the processing module is specifically configured to:
determining the sub-length of the differential sequence according to the parallel path number of the digital-to-analog converter;
and reducing the ratio of the parallel path number to the sub-length, and processing to obtain the processed data.
Optionally, the LFM phase generating module is specifically configured to:
and outputting the generated phase sequence of the LFM signal in parallel according to the parallel path number.
An embodiment of a third aspect of the present application provides an electronic device, including: the system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the implementation method of the detection communication integrated waveform as described in the embodiment.
An embodiment of a fourth aspect of the present application provides a computer-readable storage medium storing computer instructions for causing the computer to execute the method for implementing a probe communication integrated waveform according to the above embodiment.
Thus, the periodicity of the phase differential sequence is found by performing differential operation on the quantized LFM signal phase; the ROM is used for storing the phase difference sequence in one period to avoid using larger quantization bit width in the LFM phase generation process, thereby saving circuit resources and improving time sequence performance. In addition, the quantization precision of the CPM signal phase is fully considered when the LFM phase sequence is generated, the phase sequences of the CPM signal phase and the LFM phase sequence can be directly overlapped, and the precision of the CPM signal can not be lost after the CPM signal phase and the LFM phase sequence are overlapped, so that the communication performance is guaranteed to be free from loss, a high-performance detection communication integrated waveform generation circuit can be realized with lower resource expenditure, and the CPM signal phase and CPM signal phase quantization circuit has good engineering application value.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a flowchart of an implementation method of a detection communication integrated waveform according to an embodiment of the present application;
fig. 2 is a schematic diagram of a quantized LFM signal phase differential sequence according to one embodiment of the present application;
FIG. 3 is a schematic diagram of a manner of storing data in ROM (Read-Only Memory) according to one embodiment of the present application;
FIG. 4 is a schematic diagram of an LFM phase sequence generated by a circuit according to one embodiment of the present application;
FIG. 5 is a schematic diagram of an integrated baseband signal generated by a circuit according to one embodiment of the present application;
fig. 6 is an exemplary diagram of an implementation apparatus of a probe communication integrated waveform according to an embodiment of the present application;
fig. 7 is an exemplary diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following describes a method, an apparatus, a device, and a medium for implementing a probe communication integrated waveform according to an embodiment of the present application with reference to the accompanying drawings. Aiming at the problems that in the related art mentioned in the background technology center, an LFM-CPM integrated signal generating circuit adopts a high-order wide quantization to process the phase of an LFM signal and adopts a bit cutting mode to add with the phase of the CPM signal, so that circuit resource consumption is large and the quantization precision of the phase of the CPM signal is lost, the application provides a method for realizing an integrated waveform of detection communication, wherein in the method, the periodicity of a phase difference sequence is discovered by carrying out differential operation on the quantized phase of the LFM signal; the ROM is used for storing the phase difference sequence in one period to avoid using larger quantization bit width in the LFM phase generation process, thereby saving circuit resources and improving time sequence performance. In addition, the quantization precision of the CPM signal phase is fully considered when the LFM phase sequence is generated, the phase sequences of the CPM signal phase and the LFM phase sequence can be directly overlapped, and the precision of the CPM signal can not be lost after the CPM signal phase and the LFM phase sequence are overlapped, so that the communication performance is guaranteed to be free from loss, a high-performance detection communication integrated waveform generation circuit can be realized with lower resource expenditure, and the CPM signal phase and CPM signal phase quantization circuit has good engineering application value.
Specifically, fig. 1 is a flow chart of a method for implementing a detection communication integrated waveform according to an embodiment of the present application.
As shown in fig. 1, the implementation method of the detection communication integrated waveform includes the following steps:
in step S101, the quantization accuracy of the continuous phase modulation CPM signal phase is determined according to the target parameter, and a CPM phase sequence is generated.
Optionally, in some embodiments, determining the quantization accuracy of the CPM signal phase according to the target parameter includes: and quantizing the phase of the radian system into intervals according to the sampling rate, the symbol period and the modulation index of the target parameter.
Specifically, embodiments of the present application may be based on the sampling rate f s Symbol period T s And a modulation index h for quantizing the radian phase to a range [ -mN) q ,mN q ) Corresponding to the interval [ -pi, pi).
Wherein m represents the step length of the quantized numerical variation of two adjacent sampling points, and the minimum quantized bit width N of CPM phase q The expression of (2) is as follows:
in step S102, based on the CPM phase sequence, a differential result of the quantized chirped LFM signal is obtained according to the relevant parameters of the waveform.
Optionally, in some embodiments, obtaining the differential result of the quantized LFM signal according to the relevant parameters of the waveform includes: generating an LFM signal phase sequence with a real number identification according to the CPM phase sequence, and quantizing to obtain a quantized phase sequence; and carrying out differential operation on the quantized phase sequence to obtain a differential sequence, and obtaining a differential result according to the effective length of the differential sequence.
Specifically, the embodiment of the application may use a software program to generate an LFM signal phase sequence represented by a real number, quantize the sequence into an integer in a rounding manner, and the quantized phase sequence P LFM The expression of (2) is as follows:
P LFM ＝round(mN q ·μ·t 2 )；
wherein round () represents rounding; t represents time from 0 toTo->T is the time width of the pulse; mu represents the chirp coefficient.
The quantization process of the LFM signal phase sequence directly adopts the quantization bit width of the CPM phase. Therefore, the method can ensure that no precision loss is generated after the phase of the LFM signal is overlapped with the phase of the CPM signal.
And then carrying out differential operation on the sequence after the integer quantization, wherein the expression is as follows:
ΔP LFM (i)＝P LFM (i)-P LFM (i-1),i＝0,1,...,T·f s -1；
here definition of P LFM (-1)＝0。
The effective length L of the differential sequence is determined, and only the first L points in the differential sequence are reserved, wherein the expression of L is as follows:
where N is the number of communication symbols modulated in one pulse, h is the modulation index, f s And B is an integrated signal bandwidth, and m is a quantization step length of the CPM signal phase.
In step S103, the difference result is processed according to the parallel path number of the digital-to-analog converter, and the processed data is obtained.
Optionally, in some embodiments, processing the differential result according to the parallel path number of the digital-to-analog converter to obtain the processed data includes: determining the sub-length of the differential sequence according to the parallel path number of the digital-to-analog converter; and reducing the ratio of the parallel path number to the sub-length, and processing to obtain the processed data. Wherein the processing data may be recorded in ROM.
Specifically, in the embodiment of the present application, the differential sequence sub-length l may be determined according to the parallel path number W of the digital-to-analog converter, where the formula is as follows:
the ratio of the differential sequence sub-length l to the parallel path number W is reduced to obtain:
further, the differential sequence is processed as follows:
wherein DeltaP deal Is the processed differential sequence. Here define ΔP LFM (k<0)＝0。
Further, use is made of (1+log) 2 q) bits as ΔP deal (i) Is a bit width of (c). If the address index of the ROM is i, the data stored under the ith address is the data spliced by the phase difference sequences, and the expression is as follows:
[ΔP deal ((i-1)·W),ΔP deal ((i-1)·W+1),...,ΔP deal ((i-1)·W+W-1)]；
its total bit width is W (1+log) 2 q) and the total address number is l.
In step S104, a phase sequence of the LFM signal is accumulated from the at least one processing data.
Optionally, in some embodiments, generating the phase sequence of the LFM signal based on the at least one processed data accumulation includes: and outputting the generated phase sequence of the LFM signal in parallel according to the parallel path number.
Specifically, the generated phase sequence of the LFM signal is output in a W-path parallel manner, and the formula is as follows:
wherein,the phase of the LFM signal generated in the ith path at time t is shown, and ROM (t, i) shows the ith block in the data with address t in ROM.
In step S105, the CPM signal phase is added to the phase sequence, and a baseband signal is generated by a trigonometric function lookup table.
Specifically, the embodiment of the application may add the CPM phase and the LFM phase to obtain the phase of the integrated signal; taking the quantized value of the phase as an address index to check a cos function table to obtain an I-path signal; and taking the quantized value of the phase as an address index to search a sin function table to acquire a Q-channel signal.
Thus, the quantized LFM signal phase is subjected to a differential operation, and the periodicity of the phase differential sequence is found. The ROM is used for storing the phase difference sequence in one period to avoid using larger quantization bit width in the LFM phase generation process, thereby saving circuit resources and improving time sequence performance. In addition, the quantization precision of the CPM signal phase is fully considered when the LFM phase sequence is generated, the phase sequences of the LFM phase sequence and the CPM phase sequence can be directly overlapped, and the precision of the CPM signal cannot be lost after the CPM phase sequence and the CPM phase sequence are overlapped, so that the communication performance is guaranteed to be free from loss. The method can realize a high-performance detection communication integrated waveform generation circuit with lower resource expense, and has good engineering application value.
In order to enable those skilled in the art to further understand the implementation method of the detection communication integrated waveform according to the embodiments of the present application, the following detailed description is provided with reference to specific embodiments.
As shown in fig. 2, fig. 2 is a schematic diagram of a quantized LFM signal phase differential sequence. The relevant parameters employed for the example in fig. 2 are as follows: sampling rate f s =1280 MHz, symbol period T s =0.1 μs, pulse time width t=50μs, pulse bandwidth b=100 MHz, and extended quantization step size m=1. The quantized LFM signal phase differential sequence has periodicity, which can be explained as follows:
further, there is the following relationship:
thus, the differential phase sequence can be seen toThe regularity is presented for the period. Drawing of the figureThe results in 2 also verify the derived results well.
Further, as shown in fig. 3, fig. 3 is a schematic diagram of a storage mode of data in the ROM. In this example, the parallel path number w=8 of the digital-to-analog converter, the length of the processed phase difference sequence is 1600, and the phase difference result of each path can be represented by 1 bit. Thus, each address in ROM stores 8 bits, for a total of 200 address indexes.
Further, as shown in fig. 4, fig. 4 is a LFM phase sequence generated by the circuit. The phase in the illustration is quantized to the interval [ -256,256), where-256 represents-pi. Further, it can be seen that the law of variation of the phase conforms to a quadratic function.
Further, as shown in fig. 5, fig. 5 is a schematic diagram of an integrated baseband signal generated by a circuit, which includes an I-path signal and a Q-path signal, respectively. The amplitude of the signal in the figure is quantized with 9 bits, i.e. -256 stands for-1 and 255 stands forFurther, it can be seen that the frequencies of the I-path and Q-path signals change faster and faster along with time, and conform to the change rule of the LFM carrier.
According to the implementation method of the detection communication integrated waveform, which is provided by the embodiment of the application, the periodicity of a phase difference sequence is found by carrying out difference operation on the quantized LFM signal phase; the ROM is used for storing the phase difference sequence in one period to avoid using larger quantization bit width in the LFM phase generation process, thereby saving circuit resources and improving time sequence performance. In addition, the quantization precision of the CPM signal phase is fully considered when the LFM phase sequence is generated, the phase sequences of the CPM signal phase and the LFM phase sequence can be directly overlapped, and the precision of the CPM signal can not be lost after the CPM signal phase and the LFM phase sequence are overlapped, so that the communication performance is guaranteed to be free from loss, a high-performance detection communication integrated waveform generation circuit can be realized with lower resource expenditure, and the CPM signal phase and CPM signal phase quantization circuit has good engineering application value.
Next, a device for realizing the integrated waveforms of probe communication according to the embodiments of the present application will be described with reference to the accompanying drawings.
Fig. 6 is a block schematic diagram of an implementation apparatus of a probe communication integrated waveform according to an embodiment of the present application.
As shown in fig. 6, the detection communication integrated waveform implementation apparatus 10 includes: the system comprises a CPM phase generation module 100, an acquisition module 200, a processing module 300, an LFM phase generation module 400 and an integrated waveform baseband generation module 500.
The CPM phase generating module 100 is configured to determine a quantization accuracy of a continuous phase modulation CPM signal phase according to a target parameter, and generate a CPM phase sequence;
the obtaining module 200 is configured to obtain a differential result of the quantized linear frequency modulation LFM signal according to the relevant parameter of the waveform based on the CPM phase sequence;
the processing module 300 is configured to process the differential result according to the parallel path number of the digital-to-analog converter, so as to obtain processed data;
the LFM phase generating module 400 is configured to accumulate and generate a phase sequence of the LFM signal according to at least one processing data;
the integrated waveform baseband generation module 500 is configured to add the CPM signal phase to the phase sequence and generate a baseband signal through a trigonometric function lookup table.
Optionally, the CPM phase generation module 100 is specifically configured to:
and quantizing the phase of the radian system into intervals according to the sampling rate, the symbol period and the modulation index of the target parameter.
Optionally, the obtaining module 200 is specifically configured to:
generating an LFM signal phase sequence with a real number identification according to the CPM phase sequence, and quantizing to obtain a quantized phase sequence;
and carrying out differential operation on the quantized phase sequence to obtain a differential sequence, and obtaining a differential result according to the effective length of the differential sequence.
Optionally, the processing module 300 is specifically configured to:
determining the sub-length of the differential sequence according to the parallel path number of the digital-to-analog converter;
and reducing the ratio of the parallel path number to the sub-length, and processing to obtain the processed data.
Optionally, the LFM phase generating module 400 is specifically configured to:
and outputting the generated phase sequence of the LFM signal in parallel according to the parallel path number.
It should be noted that the foregoing explanation of the implementation method embodiment of the integrated waveforms of detection communication is also applicable to the implementation device of the integrated waveforms of detection communication in this embodiment, and will not be repeated here.
According to the implementation device for the detection communication integrated waveform, which is provided by the embodiment of the application, the periodicity of a phase difference sequence is discovered through carrying out difference operation on the quantized LFM signal phase; the ROM is used for storing the phase difference sequence in one period to avoid using larger quantization bit width in the LFM phase generation process, thereby saving circuit resources and improving time sequence performance. In addition, the quantization precision of the CPM signal phase is fully considered when the LFM phase sequence is generated, the phase sequences of the CPM signal phase and the LFM phase sequence can be directly overlapped, and the precision of the CPM signal can not be lost after the CPM signal phase and the LFM phase sequence are overlapped, so that the communication performance is guaranteed to be free from loss, a high-performance detection communication integrated waveform generation circuit can be realized with lower resource expenditure, and the CPM signal phase and CPM signal phase quantization circuit has good engineering application value.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device may include:
memory 701, processor 702, and computer programs stored on memory 701 and executable on processor 702.
The processor 702 implements the implementation method of the probe communication integrated waveform provided in the above embodiment when executing a program.
Further, the electronic device further includes:
a communication interface 703 for communication between the memory 701 and the processor 702.
Memory 701 for storing a computer program executable on processor 702.
The memory 701 may include a high-speed RAM memory or may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory.
If the memory 701, the processor 702, and the communication interface 703 are implemented independently, the communication interface 703, the memory 701, and the processor 702 may be connected to each other through a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 7, but not only one bus or one type of bus.
Alternatively, in a specific implementation, if the memory 701, the processor 702, and the communication interface 703 are integrated on a chip, the memory 701, the processor 702, and the communication interface 703 may communicate with each other through internal interfaces.
The processor 702 may be a central processing unit (Central Processing Unit, abbreviated as CPU) or an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC) or one or more integrated circuits configured to implement embodiments of the present application.
The present embodiment also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the detection communication integrated waveform implementation method as above.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer cartridge (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (12)
1. The implementation method of the integrated waveform of detection and communication is characterized by comprising the following steps:
determining the quantization precision of the continuous phase modulation CPM signal phase according to the target parameter, and generating a CPM phase sequence;
based on the CPM phase sequence, obtaining a difference result of the quantized linear frequency modulation LFM signal according to the relevant parameters of the waveform;
processing the differential result according to the parallel path number of the digital-to-analog converter to obtain processing data;
accumulating to generate a phase sequence of LFM signals according to at least one of the processed data;
and adding the CPM signal phase to the phase sequence, and generating a baseband signal through a trigonometric function lookup table.
2. The method of claim 1, wherein determining the quantization accuracy of the CPM signal phase based on the target parameter comprises:
and quantizing the phase of the radian system to an interval according to the sampling rate, the symbol period and the modulation index of the target parameter.
3. The method of claim 1, wherein the obtaining the differential result of the quantized LFM signal according to the relevant parameters of the waveform comprises:
generating an LFM signal phase sequence with a real number identification according to the CPM phase sequence, and quantizing to obtain a quantized phase sequence;
and carrying out differential operation on the quantized phase sequence to obtain a differential sequence, and obtaining the differential result according to the effective length of the differential sequence.
4. A method according to claim 3, wherein said processing said difference result according to the number of parallel paths of the digital-to-analog converter to obtain processed data comprises:
determining the sub-length of the differential sequence according to the parallel path number of the digital-to-analog converter;
and reducing the ratio of the parallel path number to the sub-length, and processing to obtain the processed data.
5. The method of claim 4, wherein generating the phase sequence of LFM signals from the accumulation of at least one of the processed data comprises:
and outputting the generated phase sequence of the LFM signal in parallel according to the parallel path number.
6. An implementation device for detecting and communicating integrated waveforms, comprising:
the CPM phase generation module is used for determining the quantization precision of the continuous phase modulation CPM signal phase according to the target parameter and generating a CPM phase sequence;
the acquisition module is used for acquiring a difference result of the quantized linear frequency modulation LFM signal according to the relevant parameters of the waveform based on the CPM phase sequence;
the processing module is used for processing the differential result according to the parallel path number of the digital-to-analog converter to obtain processing data;
the LFM phase generation module is used for generating a phase sequence of an LFM signal according to at least one processed data accumulation;
and the integrated waveform baseband generation module is used for adding the CPM signal phase and the phase sequence and generating a baseband signal through a trigonometric function lookup table.
7. The apparatus of claim 6, wherein the CPM phase generation module is specifically configured to:
and quantizing the phase of the radian system to an interval according to the sampling rate, the symbol period and the modulation index of the target parameter.
8. The apparatus of claim 6, wherein the obtaining module is specifically configured to:
generating an LFM signal phase sequence with a real number identification according to the CPM phase sequence, and quantizing to obtain a quantized phase sequence;
and carrying out differential operation on the quantized phase sequence to obtain a differential sequence, and obtaining the differential result according to the effective length of the differential sequence.
9. The apparatus according to claim 8, wherein the processing module is specifically configured to:
determining the sub-length of the differential sequence according to the parallel path number of the digital-to-analog converter;
and reducing the ratio of the parallel path number to the sub-length, and processing to obtain the processed data.
10. The apparatus of claim 9, wherein the LFM phase generation module is specifically configured to:
and outputting the generated phase sequence of the LFM signal in parallel by adopting the parallel path number.
11. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of implementing a probe communication integrated waveform as claimed in any one of claims 1 to 5.
12. A computer-readable storage medium having stored thereon a computer program, wherein the program is executed by a processor for implementing the method of implementing a probe communication integrated waveform according to any one of claims 1-5.
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