Acquisition and processing method of multi-channel broadband signals based on RFSOC

Abstract

The invention discloses an acquisition and processing method of multi-channel broadband signals based on RFSOC, and relates to the technical field of electronic communication. An RFSOC chip is configured, and multi-channel broadband signals are received by the configured RFSOC chip, and the multi-channel broadband signals are converted into a plurality of groups of digital signals. Signal filtering, signal demodulation and spectrum analysis are performed by an FPGA unit on the RFSOC chip, so as to obtain a signal characteristic parameter set corresponding to each group of digital signals, and locate the corresponding channel broadband state through the signal characteristic parameter set of each group of digital signals. When the channel broadband state does not meet the preset ideal condition, the signal channel of the digital signal of the corresponding group is adjusted, otherwise, the digital signal of the corresponding group is classified and stored according to storage requirements.

Description

Technical Field

[0001] The invention relates to the technical field of electronic communications, and in particular to a method for collecting and processing RFSOC multi-channel broadband signals. Background Art

[0002] With the development of wireless communications, radar systems and electronic warfare equipment, the demand for broadband signal acquisition and processing is increasing. Traditional signal acquisition and processing systems usually rely on multiple independent devices, such as analog-to-digital converters (ADCs), field programmable gate arrays (FPGAs) and digital signal processors (DSPs), resulting in complex systems, high costs, high power consumption and low data transmission efficiency. RFSOC, as a system-level chip that integrates RF front-end, ADC, digital-to-analog converter (DAC) and high-performance digital signal processing units, provides a highly integrated solution for the acquisition and processing of multi-channel broadband signals.

[0003] How to use RFSOC technology to collect multi-channel broadband signals and efficiently process the collected multi-channel broadband signals to solve the problems of complex system, high cost, high power consumption and low data processing efficiency in the existing technology. This is the pain point and difficulty in collecting and processing multi-channel broadband signals. Summary of the invention

[0004] In order to solve the above problems, the object of the present invention is to provide a method for collecting and processing multi-channel broadband signals based on RFSOC.

[0005] The object of the present invention can be achieved by the following technical scheme: A method for collecting and processing multi-channel broadband signals based on RFSOC comprises the following steps:

[0006] Step S1: configuring the RFSOC chip, and receiving a multi-channel broadband signal through the configured RFSOC chip;

[0007] Step S2: convert the multi-channel broadband signal into several groups of digital signals, and perform signal filtering, signal demodulation and spectrum analysis through the FPGA unit on the RFSOC chip, so as to obtain a signal characteristic parameter set corresponding to each group of digital signals;

[0008] Step S3: Locate the corresponding channel bandwidth status through the signal characteristic parameter set of each group of digital signals. When the channel bandwidth status does not meet the preset ideal conditions, adjust the signal channel of the corresponding group of digital signals. Otherwise, classify and store the corresponding group of digital signals according to storage requirements.

[0009] Further, the RFSOC chip is configured, and the process of receiving the multi-channel broadband signal through the configured RFSOC chip includes:

[0010] Set the signal sampling rate of the RFSOC chip, the number of channels for receiving multi-channel broadband signals, and the channel parameters of each signal channel for each broadband signal in the multi-channel broadband signal. Mark the values ​​of the signal sampling rate and the number of channels as T and η, respectively. τ and η are integers greater than 0. Set the passing threshold of the signal sampling rate, which is denoted as τ 通过 , number several signal channels and record them as i, i = 1, 2, 3, ..., η;

[0011] The channel parameter corresponding to the signal channel numbered i is recorded as D[i], D[i]={d1, d2, d3}, d1, d2 and d3 represent the packet loss rate, information transmission rate and transmission delay of the corresponding signal channel respectively; the channel limit parameter corresponding to the signal channel numbered i is set as D`[i], D`[i]={d`1, d`2, d`3}, d`1, d`2 and d`3 represent the minimum permissible value of the packet loss rate, the minimum permissible value of the information transmission rate and the maximum permissible value of the transmission delay of the signal channel respectively;

[0012] When d1≥d`1, d2≥d`2 and d3≤d`3, then D[i]=D`[i], the signal channel is in a normal state, and the signal channel corresponding to number i is configured successfully. Otherwise, D[i]≠D`[i], the signal channel is in an abnormal state, and no operation is performed on the signal channel in the normal state. The channel parameters corresponding to the signal channel in the abnormal state are sent to the signal maintenance personnel, who perform data analysis on the channel parameters and formulate and execute corresponding repair measures;

[0013] When all η signal channels are in normal state and the signal sampling rate τ ≥ τ corresponding to the RFSOC chip 通过 , the RFSOC chip configuration is successful. If any signal channel is in an abnormal state, or τ <T 通过 When , the RFSOC chip configuration fails;

[0014] When the RFSOC chip is configured successfully, multi-channel broadband signals are received through the RFSOC chip. When the RFSOC chip configuration fails, the RFSOC chip configuration is performed again until the RFSOC chip configuration is successful.

[0015] Furthermore, the process of converting the multi-channel broadband signal into a plurality of groups of digital signals includes:

[0016] The multi-channel broadband signal is composed of several broadband frequency band sub-signals, and the several sub-signals are numbered and recorded as j, j=1, 2, 3, ..., m, where m is an integer greater than 0, and the broadband frequency band corresponding to the sub-signal numbered j is recorded as KD[j], and different broadband frequency band grouping intervals are set. The broadband frequency band grouping intervals include a first grouping interval, a second grouping interval, and a third grouping interval, which are recorded as Ω1, Ω2, and Ω3 respectively;

[0017] All sub-signals of KD[j]∈Ω1 are grouped into a high-frequency sub-signal group, all sub-signals of KD[j]∈Ω2 are grouped into a medium-frequency sub-signal group, and all sub-signals of KD[j]∈Ω3 are grouped into a low-frequency sub-signal group. An analog-to-digital converter is provided for performing analog-to-digital conversion on the high-frequency sub-signal group, the medium-frequency sub-signal group, and the low-frequency sub-signal group, and then the high-frequency sub-signal group, the medium-frequency sub-signal group, and the low-frequency sub-signal group are converted into digital signals of corresponding groups through the analog-to-digital converter.

[0018] Furthermore, after conversion from the high frequency sub-signal group, the corresponding group of digital signals are high frequency digital signals, and after conversion from the intermediate frequency sub-signal group and the low frequency sub-signal group, the corresponding groups of digital signals are intermediate frequency digital signals and low frequency digital signals respectively.

[0019] Furthermore, the process of performing signal filtering, signal demodulation and spectrum analysis through the FPGA unit on the RFSOC chip to obtain a signal characteristic parameter set corresponding to each group of digital signals includes:

[0020] The RFSOC chip is provided with an FPGA unit, which includes a signal filtering area, a signal demodulation area, a spectrum construction area, and a spectrum correction area;

[0021] The signal filtering area is used to perform signal filtering on all groups of digital signals;

[0022] The signal demodulation area is used to demodulate the digital signals of all groups;

[0023] The spectrum construction area and the spectrum correction area construct signal spectra corresponding to all groups of digital signals;

[0024] The standard signal spectrum is composed of standard spectrum values ​​at several time points. At the same time point, the spectrum values ​​of the signal spectra of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal are combined with the standard spectrum value of the standard signal spectrum to obtain several signal characteristic parameter items of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal, and all of their signal characteristic parameter items are summarized to generate their corresponding signal characteristic parameter sets.

[0025] Furthermore, the process of locating the corresponding channel broadband state through the signal characteristic parameter set of each group of digital signals includes:

[0026] The channel broadband status includes broadband abnormal status, broadband suspected abnormal status and broadband normal status;

[0027] When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limiting conditions exceeds more than half of the total number of signal characteristic parameter items and does not exceed two-thirds of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as a suspected broadband abnormal state;

[0028] When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limiting conditions exceeds two-thirds of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as a broadband abnormal state;

[0029] When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limitation conditions is less than half of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as the broadband normal state.

[0030] Furthermore, when the channel bandwidth state does not meet the preset ideal condition, the process of adjusting the signal channel of the corresponding group of digital signals includes:

[0031] The ideal condition is that the channel broadband state of the signal channel is in a normal broadband state. When the channel broadband state is a broadband abnormal state or a broadband suspected abnormal state, it indicates that the channel broadband state does not meet the preset ideal condition. The signal channels of digital signals of all groups whose channel broadband states do not meet the ideal conditions are adjusted. The adjustment includes replacing the gateway interface of the signal channel, changing the initial network bandwidth of the signal channel, and replacing the frequency band for signal reception of the signal channel until the channel broadband state of the corresponding signal channel is in a normal broadband state.

[0032] Furthermore, the process of classifying and storing digital signals according to storage requirements includes:

[0033] The storage requirements of the digital signals include classified storage according to the signal source of the digital signals, classified storage according to the frequency range of the digital signals, and classified storage according to the timestamp of the digital signals;

[0034] Digital signals are classified and stored according to signal sources to generate signal groups of several categories. The source address IP of the signal source in each category of signal group is used as the unique identity authentication identifier of each signal group. Digital signals are classified and stored according to frequency range to generate signal groups of several frequency intervals. The interval endpoint values ​​of the frequency interval corresponding to each signal group are merged as the unique identity authentication identifier. Digital signals are classified and stored according to timestamps to generate signal groups of several time periods. The time period of each signal group is used as its own unique identity authentication identifier.

[0035] Compared with the prior art, the beneficial effects of the present invention are: configuring an RFSOC chip, receiving multi-channel broadband signals through the configured RFSOC chip, converting the multi-channel broadband signals into several groups of digital signals, and performing signal filtering, signal demodulation and spectrum analysis through the FPGA unit on the RFSOC chip, thereby obtaining a signal characteristic parameter set corresponding to each group of digital signals, locating the corresponding channel broadband state through the signal characteristic parameter set of each group of digital signals, and when the channel broadband state does not meet the preset ideal conditions, adjusting the signal channel of the corresponding group of digital signals, otherwise, classifying and storing the corresponding group of digital signals according to storage requirements, thereby accelerating the data processing efficiency of the signal and realizing the efficient collection of multiple broadband signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0037] like Figure 1 As shown, the acquisition and processing method based on RFSOC multi-channel broadband signal includes the following steps:

[0038] Step S1: configuring the RFSOC chip, and receiving a multi-channel broadband signal through the configured RFSOC chip;

[0039] Step S2: convert the multi-channel broadband signal into several groups of digital signals, and perform signal filtering, signal demodulation and spectrum analysis through the FPGA unit on the RFSOC chip, so as to obtain a signal characteristic parameter set corresponding to each group of digital signals;

[0040] Step S3: Locate the corresponding channel bandwidth status through the signal characteristic parameter set of each group of digital signals. When the channel bandwidth status does not meet the preset ideal conditions, adjust the signal channel of the corresponding group of digital signals. Otherwise, classify and store the corresponding group of digital signals according to storage requirements.

[0041] It should be further explained that, in a specific implementation process, the process of configuring the RFSOC chip and receiving the multi-channel broadband signal through the configured RFSOC chip includes:

[0042] Select the RFSOC chip, set the signal sampling rate corresponding to the RFSOC chip, the number of channels for receiving multi-channel broadband signals, and the channel parameters of each signal channel for collecting one of the broadband signals in the multi-channel broadband signals;

[0043] The values ​​corresponding to the signal sampling rate and the number of channels are marked as T and η, respectively, where T and η are integers greater than 0, and the passing threshold of the signal sampling rate is set, denoted as τ 通过 , number several signal channels, record the number as i, then i = 1, 2, 3, ..., η, η represents the last signal channel, that is, there are η signal channels in total;

[0044] Then the channel parameter corresponding to the signal channel numbered i is recorded as D[i], and D[i]={d1, d2, d3), d1 represents the packet loss rate of the corresponding signal channel, d2 represents the information transmission rate of the corresponding signal channel, and d3 represents the transmission delay of the corresponding signal channel;

[0045] Set the channel limit parameters corresponding to the signal channel numbered i and record them as D`[i], where D`[i] = {d`1, d`2, d`3}, where d`1 represents the minimum allowed value of the packet loss rate corresponding to the signal channel, d`2 represents the minimum allowed value of the information transmission rate corresponding to the signal channel, and d`3 represents the maximum allowed value of the transmission delay corresponding to the signal channel;

[0046] When d1≥d`1, d2≥d`2 and d3≤d`3, D[i]=D`[i], indicating that the signal channel is in a normal state and the signal channel numbered i is configured successfully. Otherwise, D[i]≠D`[i], indicating that the signal channel is in an abnormal state.

[0047] No operation is performed on the signal channel in normal state, and the channel parameters corresponding to the signal channel in abnormal state are sent to the signal maintenance personnel, who will analyze the channel parameters and formulate and execute corresponding repair measures;

[0048] When all η signal channels are in normal state and the signal sampling rate corresponding to the RFSOC chip T≥τ 通过 , the RFSOC chip configuration is successful. If any signal channel is in an abnormal state, or τ <T 通过 When , the RFSOC chip configuration fails;

[0049] When the RFSOC chip is configured successfully, multi-channel broadband signals are received through the RFSOC chip;

[0050] When the RFSOC chip configuration fails, the RFSOC chip configuration is performed again until the RFSOC chip configuration succeeds.

[0051] It should be further explained that, in a specific implementation process, the process of converting a multi-channel broadband signal into a plurality of groups of digital signals includes:

[0052] The multi-channel broadband signal is composed of several sub-signals of broadband frequency bands, and the several sub-signals are numbered and the number is recorded as j, then j=1, 2, 3, ..., m, where m is an integer greater than 0, and the broadband frequency band corresponding to the sub-signal numbered j is recorded as KD[j];

[0053] Setting different broadband frequency band grouping intervals, the broadband frequency band grouping intervals include a first grouping interval, a second grouping interval, and a third grouping interval, and the first grouping interval, the second grouping interval, and the third grouping interval are respectively recorded as Ω1, Ω2, and Ω3;

[0054] Group all sub-signals of KD[j]∈Ω1 into a high-frequency sub-signal group, group all sub-signals of KD[j]∈Ω2 into a medium-frequency sub-signal group, and group all sub-signals of KD[j]∈Ω3 into a low-frequency sub-signal group;

[0055] An analog-to-digital converter is provided for performing analog-to-digital conversion on the high-frequency sub-signal group, the intermediate-frequency sub-signal group and the low-frequency sub-signal group, and the high-frequency sub-signal group, the intermediate-frequency sub-signal group and the low-frequency sub-signal group are converted into digital signals of corresponding groups through the analog-to-digital converter;

[0056] Among them, the digital signals corresponding to the groups converted from the high-frequency sub-signal group are high-frequency digital signals. Similarly, the digital signals corresponding to the groups converted from the intermediate-frequency sub-signal group and the low-frequency sub-signal group are intermediate-frequency digital signals and low-frequency digital signals respectively.

[0057] It should be further explained that, in the specific implementation process, the process of performing signal filtering, signal demodulation and spectrum analysis through the FPGA unit on the RFSOC chip to obtain the signal characteristic parameter set corresponding to each group of digital signals includes:

[0058] The RFSOC chip is provided with an FPGA unit, and the FPGA unit includes a signal filtering area, a signal demodulation area, a spectrum construction area, and a spectrum correction area;

[0059] The signal filtering area is used to perform signal filtering on all groups of digital signals;

[0060] The signal demodulation area is used to demodulate the digital signals of all groups;

[0061] The spectrum construction area and the spectrum correction area construct signal spectra corresponding to all groups of digital signals;

[0062] Furthermore, the content of signal filtering is as follows: obtaining the signal noise segments corresponding to the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal, comparing the signal noise segments of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal with their respective preset safe noise segment intervals, and then defining the signal noise segments belonging to the safe noise segment interval as valid segments, defining the signal noise segments not belonging to the safe noise segment interval as invalid segments, and filtering out all invalid segments;

[0063] Furthermore, the content of signal demodulation is as follows: after filtering out the corresponding invalid fragments of the high-frequency digital signal, the intermediate-frequency digital signal, and the low-frequency digital signal, all remaining valid fragments are combined into corresponding groups of signals to be demodulated, and the corresponding demodulation method is selected according to the signal adjustment type corresponding to each group of signals to be demodulated to perform demodulation, thereby obtaining the demodulated signals of the high-frequency digital signal, the intermediate-frequency digital signal, and the low-frequency digital signal;

[0064] Furthermore, the contents of constructing the signal spectrum corresponding to each group of digital signals are as follows: a standard signal spectrum and a spectrum analyzer are set, and the demodulated signals of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal are input into the spectrum analyzer, thereby obtaining the spectrum value of each group of digital signals that varies with time, and the spectrum values ​​of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal that vary with time are topologically mapped onto the standard signal spectrum, thereby obtaining the spectrum values ​​corresponding to the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal, and the spectrum points are sequentially connected to obtain the respective signal spectra;

[0065] The standard signal spectrum is composed of standard spectrum values ​​at several time points. At the same time point, the spectrum values ​​of the signal spectra of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal are combined with the standard spectrum value of the standard signal spectrum to obtain several signal characteristic parameter items of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal, and all of their signal characteristic parameter items are summarized to generate their corresponding signal characteristic parameter sets.

[0066] It should be further explained that, in a specific implementation process, the process of locating the corresponding channel bandwidth state through the signal characteristic parameter set of each group of digital signals includes:

[0067] The channel broadband state includes broadband abnormal state, broadband suspected abnormal state and broadband normal state, which are abnormal flags corresponding to the broadband abnormal state, broadband suspected abnormal state and broadband normal state, respectively. Among them, the abnormal flag corresponding to the broadband abnormal state is recorded as Err1, the abnormal flag corresponding to the broadband suspected abnormal state is recorded as Err2, and the abnormal flag corresponding to the broadband normal state is recorded as Err3;

[0068] When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limiting conditions exceeds more than half of the total number of signal characteristic parameter items and does not exceed two-thirds of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as a suspected broadband abnormal state;

[0069] When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limiting conditions exceeds two-thirds of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as a broadband abnormal state;

[0070] When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limitation conditions is less than half of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as the broadband normal state.

[0071] It should be noted that the parameter limitation condition is the numerical difference between the spectrum value and the standard spectrum value in the signal characteristic parameter item. When the numerical difference exceeds the preset numerical upper limit, it is judged that the signal characteristic parameter item does not meet the parameter limitation condition; otherwise, it is judged to meet the condition.

[0072] It should be further explained that, in a specific implementation process, when the channel bandwidth state does not meet the preset ideal condition, the process of adjusting the signal channel of the digital signal of the corresponding group includes:

[0073] The ideal condition is that the channel bandwidth state of the signal channel is in a broadband normal state. Therefore, when the channel bandwidth state is a broadband abnormal state or a broadband suspected abnormal state, it means that the channel bandwidth state does not meet the preset ideal condition.

[0074] Obtaining an abnormality coefficient corresponding to each signal channel in a broadband suspected abnormal state or a broadband abnormal state, wherein the abnormality coefficient is used to indicate an abnormality level corresponding to each signal channel, wherein a higher abnormality level indicates a higher priority of the corresponding signal channel to be adjusted;

[0075] Let the abnormal coefficient be YC, then YC=N 异常 / N 总， Among them, N异常 N is the specific number of signal characteristic parameter items included in the signal characteristic parameter set of the digital signal corresponding to the signal channel in the broadband suspected abnormal state or the broadband abnormal state that do not meet the preset parameter limitation conditions, indicating that the signal characteristic parameter items corresponding to the digital signal are abnormal, 总 is the total number of signal characteristic parameter items included in the signal characteristic parameter set of the digital signal;

[0076] By associating the corresponding signal channels of broadband suspected abnormal states or broadband abnormal states with different abnormal coefficients with corresponding levels of priority, so that the signal channels with higher abnormal levels are adjusted in an earlier order, efficient and orderly adjustment of different signal channels that do not meet ideal conditions is achieved.

[0077] The signal channels of digital signals of all groups whose channel bandwidth states do not meet their ideal conditions are adjusted, and the adjustments include replacing the gateway interface of the signal channel, changing the initial network bandwidth of the signal channel, and changing the frequency band for signal reception of the signal channel, until the channel bandwidth state of the corresponding signal channel is in a normal broadband state.

[0078] It should be further explained that, in a specific implementation process, the process of classifying and storing digital signals according to storage requirements includes:

[0079] The storage requirements of the digital signals include classified storage according to the signal source of the digital signals, classified storage according to the frequency range of the digital signals, and classified storage according to the timestamp of the digital signals;

[0080] After digital signals are classified and stored according to signal sources, several signal groups are generated, and the source address IP of the signal source in each signal group is used as the unique identity authentication identifier of each signal group;

[0081] After the digital signals are classified and stored according to the frequency range, signal groups of several frequency intervals are generated, and the interval endpoint values ​​of the frequency interval corresponding to each signal group are combined as a unique identity authentication identifier;

[0082] The digital signals are classified and stored according to the timestamps, thereby generating signal groups of several time periods, and the time period of each signal group is used as a unique identity authentication identifier;

[0083] The first storage area, the second storage area and the third storage area are set to perform classified storage of digital signals;

[0084] Classify and store a plurality of signal groups composed of different signal sources with source addresses IP as identity authentication identifiers in the first storage area, allocate a first storage sub-partition in the first storage area to each signal group, and store the corresponding signal groups through the first storage sub-partition to achieve classification of digital signals from different signal sources;

[0085] Classify and store a plurality of signal groups consisting of different frequency ranges using the interval endpoint values ​​of the frequency interval as identity authentication identifiers in the second storage area, allocate a second storage sub-partition in the second storage area to each signal group, and store the corresponding signal groups through the second storage sub-partition to achieve classification of digital signals in different frequency ranges;

[0086] Classify and store a plurality of signal groups composed of different time stamps with time periods as identity authentication identifiers in the third storage area, allocate a third storage sub-partition in the third storage area to each signal group, and store the corresponding signal groups through the third storage sub-partition to achieve classification of digital signals in different time periods;

[0087] By inputting one of several source IP addresses, any signal frequency and any time period value to retrieve the corresponding signal group, and then obtaining all the digital signals included in the signal group, that is, inputting the source IP address, signal frequency and time period value in the first storage area, the second storage area and the third storage area to retrieve the digital signals corresponding to the first storage sub-partition, the second storage sub-partition and the third storage sub-partition respectively.

[0088] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. The acquisition and processing method of multi-channel broadband signals based on RFSOC is characterized in that: The following steps are involved: Step S1: configuring the RFSOC chip, and receiving a multi-channel broadband signal through the configured RFSOC chip; Step S2: convert the multi-channel broadband signal into several groups of digital signals, and perform signal filtering, signal demodulation and spectrum analysis through the FPGA unit on the RFSOC chip, so as to obtain a signal characteristic parameter set corresponding to each group of digital signals; Step S3: locating the corresponding channel bandwidth state through the signal characteristic parameter set of each group of digital signals; when the channel bandwidth state does not meet the preset ideal condition, adjusting the signal channel of the corresponding group of digital signals; otherwise, classifying and storing the corresponding group of digital signals according to storage requirements; The process of configuring the RFSOC chip and receiving the multi-channel broadband signal through the configured RFSOC chip includes: Set the signal sampling rate of the RFSOC chip, the number of channels for receiving multi-channel broadband signals, and the channel parameters of each signal channel for each broadband signal in the multi-channel broadband signal. Mark the values ​​of the signal sampling rate and the number of channels as τ and η, respectively. τ and η are integers greater than 0. Set the passing threshold of the signal sampling rate, which is denoted as τ 通过 , number several signal channels and record them as i, i = 1, 2, 3, ..., η; The channel parameter corresponding to the signal channel numbered i is recorded as D[i], D[i]={d1, d2, d3}, d1, d2 and d3 represent the packet loss rate, information transmission rate and transmission delay of the corresponding signal channel respectively; the channel limit parameter corresponding to the signal channel numbered i is set as D`[i], D`[i]={d`1, d`2, d`3}, d`1, d`2 and d`3 represent the minimum permissible value of the packet loss rate, the minimum permissible value of the information transmission rate and the maximum permissible value of the transmission delay of the signal channel respectively; When d1≥d`1, d2≥d`2 and d3≤d`3, then D[i]=D`[i], the signal channel is in a normal state, and the signal channel corresponding to number i is configured successfully. Otherwise, D[i]≠D`[i], the signal channel is in an abnormal state, and no operation is performed on the signal channel in the normal state. The channel parameters corresponding to the signal channel in the abnormal state are sent to the signal maintenance personnel, who perform data analysis on the channel parameters and formulate and execute corresponding repair measures; When all η signal channels are in normal state and the signal sampling rate τ ≥ τ corresponding to the RFSOC chip 通过 , the RFSOC chip configuration is successful. If any signal channel is in an abnormal state, or τ<τ 通过 When , the RFSOC chip configuration fails; When the RFSOC chip is configured successfully, multi-channel broadband signals are received through the RFSOC chip. When the RFSOC chip configuration fails, the RFSOC chip configuration is performed again until the RFSOC chip configuration is successful.

2. The method for collecting and processing RFSOC multi-channel broadband signals according to claim 1, characterized in that: The process of converting a multi-channel broadband signal into several sets of digital signals includes: The multi-channel broadband signal is composed of several broadband frequency band sub-signals, and the several sub-signals are numbered and recorded as j, j=1, 2, 3, ..., m, where m is an integer greater than 0, and the broadband frequency band corresponding to the sub-signal numbered j is recorded as KD[j], and different broadband frequency band grouping intervals are set. The broadband frequency band grouping intervals include a first grouping interval, a second grouping interval, and a third grouping interval, which are recorded as Ω1, Ω2, and Ω3 respectively; All sub-signals of KD[j]∈Ω1 are grouped into a high-frequency sub-signal group, all sub-signals of KD[j]∈Ω2 are grouped into a medium-frequency sub-signal group, and all sub-signals of KD[j]∈Ω3 are grouped into a low-frequency sub-signal group. An analog-to-digital converter is provided for performing analog-to-digital conversion on the high-frequency sub-signal group, the medium-frequency sub-signal group, and the low-frequency sub-signal group, and then the high-frequency sub-signal group, the medium-frequency sub-signal group, and the low-frequency sub-signal group are converted into digital signals of corresponding groups through the analog-to-digital converter.

3. The acquisition and processing method based on RFSOC multi-channel broadband signal according to claim 2 is characterized in that: The digital signals of the corresponding groups after conversion from the high-frequency sub-signal group are high-frequency digital signals, and the digital signals of the corresponding groups after conversion from the intermediate-frequency sub-signal group and the low-frequency sub-signal group are intermediate-frequency digital signals and low-frequency digital signals respectively.

4. The method for collecting and processing RFSOC multi-channel broadband signals according to claim 2, characterized in that: The process of performing signal filtering, signal demodulation, and spectrum analysis through the FPGA unit on the RFSOC chip to obtain the signal characteristic parameter set corresponding to each group of digital signals includes: The RFSOC chip is provided with an FPGA unit, which includes a signal filtering area, a signal demodulation area, a spectrum construction area, and a spectrum correction area; The signal filtering area is used to perform signal filtering on all groups of digital signals; The signal demodulation area is used to demodulate the digital signals of all groups; The spectrum construction area and the spectrum correction area construct signal spectra corresponding to all groups of digital signals; A standard signal spectrum is set, and the standard signal spectrum is composed of standard spectrum values ​​at several time points. At the same time point, the spectrum values ​​of the signal spectra of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal are combined with the standard spectrum value of the standard signal spectrum, so as to obtain several signal characteristic parameter items of the high-frequency digital signal, the intermediate-frequency digital signal and the low-frequency digital signal respectively, and all the signal characteristic parameter items of each are summarized to generate their corresponding signal characteristic parameter sets.

5. The method for collecting and processing RFSOC multi-channel broadband signals according to claim 4 is characterized in that: The process of locating the corresponding channel broadband state through the signal characteristic parameter set of each group of digital signals includes: The channel broadband status includes broadband abnormal status, broadband suspected abnormal status and broadband normal status; When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limiting conditions exceeds more than half of the total number of signal characteristic parameter items and does not exceed two-thirds of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as a suspected broadband abnormal state; When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limiting conditions exceeds two-thirds of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as a broadband abnormal state; When the number of signal characteristic parameter items included in the signal characteristic parameter set of each group of digital signals that do not meet the preset parameter limitation conditions is less than half of the total number of signal characteristic parameter items, the channel broadband state of the signal channel of the corresponding group of digital signals is marked as the broadband normal state.

6. The method for collecting and processing RFSOC multi-channel broadband signals according to claim 5, characterized in that: When the channel bandwidth state does not meet the preset ideal condition, the process of adjusting the signal channel of the corresponding group of digital signals includes: The ideal condition is that the channel broadband state of the signal channel is in a normal broadband state. When the channel broadband state is a broadband abnormal state or a broadband suspected abnormal state, it indicates that the channel broadband state does not meet the preset ideal condition. The signal channels of digital signals of all groups whose channel broadband states do not meet the ideal conditions are adjusted. The adjustment includes replacing the gateway interface of the signal channel, changing the initial network bandwidth of the signal channel, and replacing the frequency band for signal reception of the signal channel until the channel broadband state of the corresponding signal channel is in a normal broadband state.

7. The method for collecting and processing RFSOC multi-channel broadband signals according to claim 6, characterized in that: The process of classifying and storing digital signals according to storage requirements includes: The storage requirements of the digital signals include classified storage according to the signal source of the digital signals, classified storage according to the frequency range of the digital signals, and classified storage according to the timestamp of the digital signals; Digital signals are classified and stored according to signal sources to generate signal groups of several categories. The source address IP of the signal source in each category of signal group is used as the unique identity authentication identifier of each signal group. Digital signals are classified and stored according to frequency range to generate signal groups of several frequency intervals. The interval endpoint values ​​of the frequency interval corresponding to each signal group are merged as the unique identity authentication identifier. Digital signals are classified and stored according to timestamps to generate signal groups of several time periods. The time period of each signal group is used as its own unique identity authentication identifier.

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