Multi-channel receiving and transmitting digital signal processing synchronization test system and multi-channel receiving and transmitting digital signal processing synchronization test method

Abstract

The invention discloses a multichannel receiving and transmitting digital signal processing synchronization test system and method, and the system comprises a first signal source, a second signal source, a synchronization module, an acquisition processing module, a signal processing module, a voltage-stabilized power supply, and an upper computer. The first signal source is configured to send a clock signal to the synchronization module and the two same multi-channel preprocessing plates to be tested through the first power divider; the second signal source is configured to respectively send n paths of signals to the multi-channel preprocessing board through a second power divider; each multi-channel preprocessing board is configured to execute analog-to-digital conversion, digital-to-analog conversion and preprocessing of n paths of signals, and the two multi-channel preprocessing boards jointly complete receiving and transmitting of 2n paths of signals between the boards. According to the invention, device working voltage acquisition, program loading and solidification, and amplitude and phase consistency index testing of in-board and inter-board receiving and transmitting channel signals of the multi-channel preprocessing board can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of signal processing, and in particular to a multi-channel receiving and transmitting digital signal processing synchronous testing system and method. Background Art

[0002] Signal processing technology is currently widely used in aviation, aerospace, and communications. However, existing signal processing circuits have many signal paths and indicators, and the synchronization consistency requirements between multiple paths are strict. General testing methods are difficult to meet the requirements of fast, accurate, and stable testing. Traditional signal processing tests have problems such as low efficiency, low indicator accuracy, low stability, difficult data synchronization, inconvenient debugging, long design cycle, non-reusability, non-scalability, and insufficient reliability verification. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a multi-channel receiving and transmitting digital signal processing synchronous testing system and method, which can break through the limitations of the synchronization consistency of signal processing test indicators by improving the integration and adopting a synchronous testing platform to reduce the test time and improve the accuracy and stability of the test indicators.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A multi-channel receiving and transmitting digital signal processing synchronous testing system, comprising:

[0006] A first signal source is configured to send a clock signal to a synchronization module and two identical multi-channel pre-processing boards to be tested respectively through a first power divider;

[0007] The second signal source is configured to send n-channel signals to the multi-channel pre-processing board through the second power divider; each multi-channel pre-processing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and pre-processing of the n-channel signals, and the two multi-channel pre-processing boards jointly complete the reception and transmission of 2n-channel signals between the boards;

[0008] A synchronization module is configured to provide a synchronization signal to two multi-channel pre-processing boards as a trigger signal for data acquisition;

[0009] An acquisition processing module is configured to acquire device operating voltages of a multi-channel pre-processing board;

[0010] The signal processing module is configured to perform data delivery between the multi-channel pre-processing board and the host computer;

[0011] A voltage-stabilized power supply configured to supply power to the multi-channel pre-processing board, the synchronization module, the acquisition processing module, and the signal processing module;

[0012] The host computer is configured to perform data processing and display of the multi-channel pre-processing board, realize the device working voltage collection of the multi-channel pre-processing board, program loading and solidification, and amplitude and phase consistency index testing of the receiving and transmitting channel signals within and between boards.

[0013] Furthermore, the device operating voltage collection of the multi-channel pre-processing board includes: the collection and processing module collects the device operating voltage value of each test pad of the two multi-channel pre-processing boards respectively, and uploads the collected device operating voltage value to the host computer for display.

[0014] Furthermore, the program loading and curing of the multi-channel preprocessing board includes: the host computer transmits the loading program data of the two multi-channel preprocessing boards to the signal processing module, and the signal processing module then burns the loading program data into the devices of the two multi-channel preprocessing boards for curing.

[0015] Furthermore, the amplitude and phase consistency index test of the intra-board and inter-board receiving channel signals of the multi-channel preprocessing board includes: the first signal source sends the clock signal to the synchronization module and the two multi-channel preprocessing boards respectively through the first power divider, and the synchronization module outputs the synchronization signal to the two multi-channel preprocessing boards; the second signal source sends n input signals to the two multi-channel preprocessing boards respectively through the second power divider, and the amplitude and phase consistency index of a total of 2n input signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

[0016] Furthermore, the amplitude and phase consistency index test of the intra-board and inter-board transmission channel signals of the multi-channel preprocessing board includes: the n-way output signals of the two multi-channel preprocessing boards are connected through radio frequency cables as their own n-way signal inputs respectively, and the amplitude and phase consistency index of a total of 2n-way output signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

[0017] A multi-channel receiving and transmitting digital signal processing synchronous testing method, comprising:

[0018] The clock signal is sent to the synchronization module and two identical multi-channel pre-processing boards to be tested respectively through the first signal source and the first power divider;

[0019] The n-channel signals are respectively sent to the multi-channel pre-processing board through the second signal source and the second power divider; each multi-channel pre-processing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and pre-processing of the n-channel signals, and the two multi-channel pre-processing boards jointly complete the reception and transmission of 2n-channel signals between the boards;

[0020] Providing synchronization signals to two multi-channel pre-processing boards as trigger signals for data acquisition through the synchronization module;

[0021] The device operating voltage of the multi-channel pre-processing board is collected by the collection and processing module;

[0022] Execute data delivery between multi-channel pre-processing board and host computer through signal processing module;

[0023] The multi-channel pre-processing board, synchronization module, acquisition processing module and signal processing module are powered by a stabilized power supply;

[0024] The host computer performs data processing and display on the multi-channel pre-processing board, realizes the device working voltage acquisition, program loading and solidification, and amplitude and phase consistency index testing of the receiving and transmitting channel signals within and between boards.

[0025] Furthermore, the device operating voltage collection of the multi-channel preprocessing board includes: collecting the device operating voltage values ​​of each test pad of the two multi-channel preprocessing boards respectively through the collection and processing module, and uploading the collected device operating voltage values ​​to the host computer for display.

[0026] Furthermore, the program loading and curing of the multi-channel preprocessing board includes: transmitting the loading program data of the two multi-channel preprocessing boards to the signal processing module through the host computer, and the signal processing module then burns the loading program data into the devices of the two multi-channel preprocessing boards for curing.

[0027] Furthermore, the amplitude and phase consistency index test of the intra-board and inter-board receiving channel signals of the multi-channel preprocessing board includes: sending the clock signal to the synchronization module and two multi-channel preprocessing boards respectively through the first signal source through the first power divider, and the synchronization module outputs the synchronization signal to the two multi-channel preprocessing boards; sending n input signals to the two multi-channel preprocessing boards respectively through the second power divider through the second signal source, and the amplitude and phase consistency index of a total of 2n input signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

[0028] Furthermore, the amplitude and phase consistency index test of the intra-board and inter-board transmission channel signals of the multi-channel preprocessing board includes: connecting the n-way output signals of the two multi-channel preprocessing boards through radio frequency cables as their own n-way signal inputs respectively, and transmitting the amplitude and phase consistency index of a total of 2n-way output signals of the two multi-channel preprocessing boards to the host computer through the signal processing module.

[0029] The beneficial effects of the present invention are:

[0030] 1. High efficiency. The present invention can realize the acquisition of device working voltage of the multi-channel preprocessing board and program loading and solidification, the amplitude and phase consistency index test of a total of 2n receiving channel signals within and between multi-channel preprocessing boards, and the amplitude and phase consistency index test of a total of 2n transmitting channel signals within and between multi-channel preprocessing boards.

[0031] 2. High accuracy. The two multi-channel pre-processing boards collect 2n intermediate frequency input signals and 2n intermediate frequency output signals by powering on, ensuring that the 2n intermediate frequency input signals and 2n intermediate frequency output signals complete the amplitude and phase consistency test at one time.

[0032] 3. High stability. The 2n-channel IF input signals and 2n-channel IF output signals of the two multi-channel pre-processing boards are tested by repeated power-on and repeated switching input signals to ensure the consistency of the signal amplitude and phase of the 2n-channel IF input signals and 2n-channel IF output signals at different temperatures and different working frequency bands.

[0033] 4. Easy to expand. The multi-channel receiving and transmitting digital signal processing synchronous testing system and method of the present invention are easy to be integrated and tested on a large scale.

[0034] In summary, the present invention has the advantages of high efficiency, high accuracy, high stability, easy expansion, etc., and can be adapted to different signal processing platforms. The highly integrated digital signal processing synchronous test system reduces the number of peripheral devices, thereby reducing the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of a multi-channel receiving and transmitting digital signal processing synchronization test system according to Example 1 of the present invention.

[0036] Figure 2 It is a schematic diagram of device working voltage collection of the multi-channel pre-processing board in Example 1 of the present invention.

[0037] Figure 3 It is a schematic diagram of program loading and curing of a multi-channel preprocessing board in Example 1 of the present invention.

[0038] Figure 4 It is a schematic diagram of amplitude and phase consistency test of receiving channels within and between boards of a multi-channel preprocessing board in Example 1 of the present invention.

[0039] Figure 5 It is a schematic diagram of amplitude and phase consistency test of transmission channels within and between boards of a multi-channel preprocessing board in Example 1 of the present invention. DETAILED DESCRIPTION

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0041] Example 1

[0042] This embodiment provides a multi-channel receiving and transmitting digital signal processing synchronization test system, including:

[0043] A first signal source is configured to send a clock signal to a synchronization module and two identical multi-channel pre-processing boards to be tested respectively through a first power divider;

[0044] The second signal source is configured to send n-channel signals to the multi-channel pre-processing boards through the second power divider; each multi-channel pre-processing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and pre-processing of the n-channel signals, and the two multi-channel pre-processing boards jointly complete the reception and transmission of 2n-channel signals between the boards;

[0045] The synchronization module is configured to provide synchronization signals to the two multi-channel pre-processing boards as trigger signals for data acquisition, ensuring that the phase of the two multi-channel pre-processing boards is 0° when they are powered on at different times to acquire intermediate frequency signal data.

[0046] An acquisition processing module is configured to acquire device operating voltages of a multi-channel pre-processing board;

[0047] The signal processing module is configured to perform data delivery between the multi-channel pre-processing board and the host computer;

[0048] A voltage-stabilized power supply configured to supply power to the multi-channel pre-processing board, the synchronization module, the acquisition processing module, and the signal processing module;

[0049] The host computer is configured to perform data processing and display of the multi-channel pre-processing board, realize the device working voltage collection of the multi-channel pre-processing board, program loading and solidification, and amplitude and phase consistency index testing of the receiving and transmitting channel signals within and between boards.

[0050] Specifically, Figure 1 As shown, the multi-channel receiving and transmitting digital signal processing synchronization test system of this embodiment includes: a multi-channel preprocessing board 1, a multi-channel preprocessing board 2, a synchronization module, an acquisition processing module, a signal processing module, a voltage-stabilized power supply, a signal source 1, a signal source 2, a power divider 1, a power divider 2, an optical fiber, a network cable and a host computer.

[0051] Among them, signal source 1 sends the clock signal to two multi-channel pre-processing boards and the synchronization module through power divider 1, and the synchronization module outputs the synchronized 10Hz signal to the two multi-channel pre-processing boards; signal source 2 outputs the signal to power divider 2, and power divider 2 sends 16 signals to the 16 input intermediate frequency signals of the two multi-channel pre-processing boards through RF cables, and at the same time, the 16 intermediate frequency transmission signals of the two multi-channel pre-processing boards can also be sent to the 16 intermediate frequency input signals of their respective multi-channel pre-processing boards through RF cables. The voltage regulator provides 12V voltage as the working voltage of the multi-channel pre-processing board 1, the multi-channel pre-processing board 2, the synchronization module, the acquisition processing module and the signal processing module. The acquisition processing module is used to collect the device working voltages of the multi-channel pre-processing board 1 and the multi-channel pre-processing board 2, and at the same time, the collected device working voltages are reported to the host computer for display through the network cable. The signal processing module completes the data delivery of the multi-channel pre-processing board 1 and the multi-channel pre-processing board 2 through the optical fiber, and completes the data delivery with the host computer through the network cable.

[0052] like Figure 2 As shown, the device working voltage acquisition of the multi-channel preprocessing board in this embodiment includes: the voltage stabilizing power supply provides a 12V voltage as the working voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, and the acquisition processing module; the acquisition processing module acquires the voltage values ​​of the device working voltage 1 to the device working voltage 40 output from the test pad 1 to the test pad 40 of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2, and then uploads them to the host computer through the network cable to display the acquired voltage values.

[0053] like Figure 3 As shown, in this embodiment, the program loading and curing of the multi-channel preprocessing board includes: the voltage stabilizer provides a 12V voltage as the working voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, and the signal processing module; the host computer transmits the loading program data of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 to the signal processing module through the network cable, and the signal processing module burns the loading program data into the devices of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 through the optical fiber for curing.

[0054] like Figure 4As shown, the amplitude and phase consistency index test of the intra-board and inter-board receiving channel signals of the multi-channel preprocessing board in this embodiment includes: the voltage stabilizer provides a 12V voltage as the working voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, the synchronization module and the signal processing module; the signal source 1 sends the clock signal to the two multi-channel preprocessing boards and the synchronization module through the power divider 1, and the synchronization module outputs the synchronized 10Hz signal to the two multi-channel preprocessing boards; the signal source 2 sends the signal through the power divider 2 to send 16 channels of signals to the 16 input intermediate frequency signals of the two multi-channel preprocessing boards through the radio frequency cable, and the amplitude and phase consistency indexes of the total 32 input signals of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 are transmitted to the signal processing module through the optical fiber, and the signal processing module transmits the amplitude and phase consistency indexes to the host computer through the network cable for display.

[0055] like Figure 5 As shown, in this embodiment, the amplitude and phase consistency index test of the intra-board and inter-board transmission channel signals of the multi-channel preprocessing board includes: the voltage stabilizer provides a 12V voltage as the operating voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, the synchronization module and the signal processing module; the 16 output signals of the multi-channel preprocessing board 1 are connected as the 16 signal inputs of the multi-channel preprocessing board 1 through radio frequency cables, and the 16 output signals of the multi-channel preprocessing board 2 are connected as the 16 signal inputs of the multi-channel preprocessing board 2 through radio frequency cables, and the amplitude and phase consistency indexes of a total of 32 output signals of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 are transmitted to the signal processing module through optical fiber, and the signal processing module transmits the amplitude and phase consistency indexes to the host computer through the network cable for display.

[0056] Example 2

[0057] This embodiment provides a multi-channel receiving and transmitting digital signal processing synchronization test method, including:

[0058] The clock signal is sent to the synchronization module and two identical multi-channel pre-processing boards to be tested respectively through the first signal source and the first power divider;

[0059] The n-channel signals are respectively sent to the multi-channel pre-processing boards through the second signal source and the second power divider; each multi-channel pre-processing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and pre-processing of the n-channel signals, and the two multi-channel pre-processing boards jointly complete the reception and transmission of 2n-channel signals between the boards;

[0060] The synchronization module provides synchronization signals to the two multi-channel pre-processing boards as trigger signals for data acquisition, ensuring that the phase is 0° when the two multi-channel pre-processing boards are powered on at different times to collect intermediate frequency signal data;

[0061] The device operating voltage of the multi-channel pre-processing board is collected by the collection and processing module;

[0062] Execute data delivery between multi-channel pre-processing board and host computer through signal processing module;

[0063] The multi-channel pre-processing board, synchronization module, acquisition processing module and signal processing module are powered by a stabilized power supply;

[0064] The host computer performs data processing and display on the multi-channel pre-processing board, realizes the device working voltage acquisition, program loading and solidification, and amplitude and phase consistency index testing of the receiving and transmitting channel signals within and between boards.

[0065] Preferably, the device working voltage acquisition of the multi-channel preprocessing board in this embodiment includes: a regulated power supply provides a 12V voltage as the working voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, and the acquisition processing module; the acquisition processing module collects the voltage values ​​of the device working voltage 1 to the device working voltage 40 output from the test pad 1 to the test pad 40 of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2, and then uploads them to the host computer through the network cable to display the collected voltage values.

[0066] Preferably, the program loading and curing of the multi-channel preprocessing board in this embodiment includes: a regulated power supply provides a 12V voltage as the working voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, and the signal processing module; the host computer transmits the loading program data of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 to the signal processing module through a network cable, and the signal processing module burns the loading program data into the devices of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 through optical fiber for curing.

[0067] Preferably, the amplitude and phase consistency index test of the intra-board and inter-board receiving channel signals of the multi-channel preprocessing board in this embodiment includes: the voltage stabilized power supply provides a 12V voltage as the operating voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, the synchronization module and the signal processing module; the signal source 1 sends the clock signal to the two multi-channel preprocessing boards and the synchronization module respectively through the power divider 1, and the synchronization module outputs the synchronized 10Hz signal to the two multi-channel preprocessing boards; the signal source 2 sends the 16-channel signal to the 16 input intermediate frequency signals of the two multi-channel preprocessing boards through the power divider 2 and the radio frequency cable respectively, and the amplitude and phase consistency indicators of the total 32 input signals of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 are transmitted to the signal processing module through optical fiber, and the signal processing module transmits the amplitude and phase consistency indicators to the host computer for display through the network cable.

[0068] Preferably, in the present embodiment, the amplitude and phase consistency index test of the intra-board and inter-board transmitting channel signals of the multi-channel preprocessing board includes: the voltage stabilized power supply provides a 12V voltage as the operating voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, the synchronization module and the signal processing module; the 16 output signals of the multi-channel preprocessing board 1 are connected via radio frequency cables as the 16 signal inputs of the multi-channel preprocessing board 1, the 16 output signals of the multi-channel preprocessing board 2 are connected via radio frequency cables as the 16 signal inputs of the multi-channel preprocessing board 2, the amplitude and phase consistency indexes of a total of 32 output signals of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 are transmitted to the signal processing module via optical fiber, and the signal processing module transmits the amplitude and phase consistency indexes to the host computer for display via a network cable.

[0069] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity of description, they are expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

Claims

1. A multi-channel receiving and transmitting digital signal processing synchronous test system, characterized in that: include: A first signal source is configured to send a clock signal to a synchronization module and two identical multi-channel pre-processing boards to be tested respectively through a first power divider; The second signal source is configured to send n-channel signals to the multi-channel pre-processing board through the second power divider; each multi-channel pre-processing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and pre-processing of the n-channel signals, and the two multi-channel pre-processing boards jointly complete the reception and transmission of 2n-channel signals between the boards; A synchronization module is configured to provide a synchronization signal to two multi-channel pre-processing boards as a trigger signal for data acquisition; An acquisition processing module is configured to acquire device operating voltages of a multi-channel pre-processing board; The signal processing module is configured to perform data delivery between the multi-channel pre-processing board and the host computer; A voltage-stabilized power supply configured to supply power to the multi-channel pre-processing board, the synchronization module, the acquisition processing module, and the signal processing module; The host computer is configured to perform data processing and display of the multi-channel pre-processing board, realize the device working voltage collection of the multi-channel pre-processing board, program loading and solidification, and amplitude and phase consistency index testing of the receiving and transmitting channel signals within and between boards.

2. A multi-channel receiving and transmitting digital signal processing synchronous testing system according to claim 1, characterized in that: The device working voltage collection of the multi-channel pre-processing board includes: the collection and processing module collects the device working voltage values ​​of each test pad of the two multi-channel pre-processing boards respectively, and uploads the collected device working voltage values ​​to the host computer for display.

3. A multi-channel receiving and transmitting digital signal processing synchronous testing system according to claim 1, characterized in that: The program loading and curing of the multi-channel preprocessing board includes: the host computer transmits the loading program data of the two multi-channel preprocessing boards to the signal processing module, and the signal processing module then burns the loading program data into the devices of the two multi-channel preprocessing boards for curing.

4. A multi-channel receiving and transmitting digital signal processing synchronous testing system according to claim 1, characterized in that: The amplitude and phase consistency index test of the intra-board and inter-board receiving channel signals of the multi-channel preprocessing board includes: the first signal source sends the clock signal to the synchronization module and the two multi-channel preprocessing boards respectively through the first power divider, and the synchronization module outputs the synchronization signal to the two multi-channel preprocessing boards; the second signal source sends n input signals to the two multi-channel preprocessing boards respectively through the second power divider, and the amplitude and phase consistency index of a total of 2n input signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

5. A multi-channel receiving and transmitting digital signal processing synchronous testing system according to claim 1, characterized in that: The amplitude and phase consistency index test of the intra-board and inter-board transmission channel signals of the multi-channel preprocessing board includes: the n-way output signals of the two multi-channel preprocessing boards are connected through radio frequency cables as their own n-way signal inputs respectively, and the amplitude and phase consistency index of a total of 2n-way output signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

6. A method for synchronous testing of multi-channel receiving and transmitting digital signal processing, characterized in that: include: The clock signal is sent to the synchronization module and two identical multi-channel pre-processing boards to be tested respectively through the first signal source and the first power divider; The n-channel signals are respectively sent to the multi-channel pre-processing board through the second signal source and the second power divider; each multi-channel pre-processing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and pre-processing of the n-channel signals, and the two multi-channel pre-processing boards jointly complete the reception and transmission of 2n-channel signals between the boards; Providing synchronization signals to two multi-channel pre-processing boards as trigger signals for data acquisition through the synchronization module; The device operating voltage of the multi-channel pre-processing board is collected by the collection and processing module; Execute data delivery between multi-channel pre-processing board and host computer through signal processing module; The multi-channel pre-processing board, synchronization module, acquisition processing module and signal processing module are powered by a stabilized power supply; The host computer performs data processing and display on the multi-channel pre-processing board, realizes the device working voltage acquisition, program loading and solidification, and amplitude and phase consistency index testing of the receiving and transmitting channel signals within and between boards.

7. A method for synchronous testing of multi-channel receiving and transmitting digital signal processing according to claim 6, characterized in that: The device operating voltage collection of the multi-channel pre-processing board includes: collecting the device operating voltage values ​​of each test pad of the two multi-channel pre-processing boards respectively through the collection and processing module, and uploading the collected device operating voltage values ​​to the host computer for display.

8. A method for synchronous testing of multi-channel receiving and transmitting digital signal processing according to claim 6, characterized in that: The program loading and curing of the multi-channel preprocessing board includes: transmitting the loading program data of the two multi-channel preprocessing boards to the signal processing module through the host computer, and the signal processing module then burns the loading program data into the devices of the two multi-channel preprocessing boards for curing.

9. A method for synchronous testing of multi-channel receiving and transmitting digital signal processing according to claim 6, characterized in that: The test of the amplitude and phase consistency index of the receiving channel signals within and between the boards of the multi-channel preprocessing board includes: sending the clock signal to the synchronization module and the two multi-channel preprocessing boards respectively through the first signal source through the first power divider, and the synchronization module outputs the synchronization signal to the two multi-channel preprocessing boards; sending the n-way input signal to the two multi-channel preprocessing boards respectively through the second power divider through the second signal source, and the amplitude and phase consistency index of the total 2n-way input signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

10. A method for synchronous testing of multi-channel receiving and transmitting digital signal processing according to claim 6, characterized in that: The amplitude and phase consistency index test of the intra-board and inter-board transmission channel signals of the multi-channel preprocessing board includes: connecting the n-channel output signals of the two multi-channel preprocessing boards through radio frequency cables as their own n-channel signal inputs respectively, and transmitting the amplitude and phase consistency index of a total of 2n-channel output signals of the two multi-channel preprocessing boards to the host computer through the signal processing module.

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