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

Abstract

The application discloses a kind of multi-channel receiving and transmitting digital signal processing synchronization test system and method, wherein test system includes first signal source, second signal source, synchronization module, acquisition processing module, signal processing module, stabilized power supply and host computer, first signal source is configured as clock signal is sent through first power divider respectively to synchronization module and two identical and to be measured multi-channel preprocessing board;Second signal source is configured as n-way signal is sent through second power divider respectively to the multi-channel preprocessing board;Each multi-channel preprocessing board is configured as the analog-digital conversion of n-way signal, digital-analog conversion and preprocessing, and two multi-channel preprocessing boards complete the reception and transmission of 2n-way signal between boards together.The application can realize the device working voltage acquisition of multi-channel preprocessing board, program loading solidification, the amplitude and phase consistency index test of inboard and interboard receiving and transmitting channel signal.

Description

Technical Field

[0001] This invention relates to the field of signal processing technology, and in particular to a multi-channel receiving and transmitting digital signal processing synchronous test system and method. Background Technology

[0002] Signal processing technology is currently widely used in aviation, aerospace, and communications. However, existing signal processing circuits have a large number of signal channels and specifications, and the synchronization and consistency requirements between multiple channels are strict. General testing methods are difficult to meet the requirements for fast, accurate, and stable testing. Traditional signal processing testing suffers from problems such as inefficiency, low specification accuracy, low stability, difficulty in data synchronization, inconvenient debugging, long design cycle, non-reusability, non-scalability, and insufficient reliability verification. Summary of the Invention

[0003] To address the aforementioned issues, this invention proposes a multi-channel receiving and transmitting digital signal processing synchronous testing system and method. By increasing integration and employing a synchronous testing platform to reduce testing time, the accuracy and stability of test indicators are improved, thus overcoming the limitations of synchronous consistency in signal processing test indicators.

[0004] The technical solution adopted in this invention is as follows:

[0005] A multi-channel receiving and transmitting digital signal processing synchronous test system includes:

[0006] The first signal source is configured to send the clock signal to the synchronization module and two identical multi-channel preprocessing boards to be tested via the first power divider.

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

[0008] The synchronization module is configured to provide a synchronization signal to the two multi-channel preprocessing boards as a trigger signal for data acquisition;

[0009] The acquisition and processing module is configured to acquire the device operating voltage of the multi-channel preprocessing board;

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

[0011] The regulated power supply is configured to power the multi-channel preprocessing board, synchronization module, acquisition and processing module, and signal processing module;

[0012] The host computer is configured to perform data processing and display on the multi-channel preprocessing board, and to acquire the device operating voltage, load and solidify the program, and test the amplitude and phase consistency of the received and transmitted signals within and between the boards.

[0013] Furthermore, the acquisition of device operating voltage of the multi-channel preprocessing board includes: the acquisition and processing module acquires the device operating voltage values ​​of each test pad of the two multi-channel preprocessing boards respectively, and uploads them to the host computer for display.

[0014] Furthermore, the program loading and curing of the multi-channel preprocessing board includes: the host computer transmitting the loading program data of the two multi-channel preprocessing boards to the signal processing module, and the signal processing module then burning 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 received channel signals within and between the multi-channel preprocessing board includes: a first signal source sends a clock signal to the synchronization module and the two multi-channel preprocessing boards respectively through a first power divider; the synchronization module outputs a synchronization signal to the two multi-channel preprocessing boards; a second signal source sends n input signals to the two multi-channel preprocessing boards respectively through a second power divider; and the amplitude and phase consistency index of the total 2n input signals of the two multi-channel preprocessing boards is transmitted to the host computer through the signal processing module.

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

[0017] A method for synchronous testing of multi-channel receiving and transmitting digital signal processing includes:

[0018] The clock signal is sent from the first signal source to the synchronization module and two identical multi-channel preprocessing boards to be tested via the first power divider.

[0019] The second signal source sends n signals to the multi-channel preprocessing board via the second power divider; each multi-channel preprocessing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and preprocessing of n signals, and the two multi-channel preprocessing boards together complete the reception and transmission of 2n signals between the boards;

[0020] The synchronization module provides a synchronization signal to the two multi-channel preprocessing boards as a trigger signal for data acquisition;

[0021] The device operating voltage of the multi-channel preprocessing board is acquired through the acquisition and processing module;

[0022] The signal processing module performs data delivery between the multi-channel preprocessing board and the host computer.

[0023] The multi-channel preprocessing board, synchronization module, acquisition and processing module, and signal processing module are powered by a regulated power supply.

[0024] The host computer performs data processing and display on the multi-channel preprocessing board, enabling the acquisition of device operating voltage, program loading and solidification, and testing of amplitude and phase consistency of signals received and transmitted within and between the boards.

[0025] Furthermore, the acquisition of device operating voltage of the multi-channel preprocessing board includes: acquiring the device operating voltage values ​​of each test pad of the two multi-channel preprocessing boards through the acquisition and processing module, and uploading the acquired 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 via the host computer, and then the signal processing module 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 received channel signals within and between 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 power divider via the first signal source; 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 via the second signal source; and transmitting the amplitude and phase consistency index of the total 2n input signals of the two multi-channel preprocessing boards 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 output signals of the two multi-channel preprocessing boards through radio frequency cables as their own n signal inputs, and transmitting the amplitude and phase consistency index of the total 2n output signals of the two multi-channel preprocessing boards to the host computer through the signal processing module.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. High efficiency. This invention can acquire and program the operating voltage of devices on a multi-channel preprocessing board, test the amplitude and phase consistency of a total of 2n receiving channels within and between the multi-channel preprocessing board, and test the amplitude and phase consistency of a total of 2n transmitting channels within and between the multi-channel preprocessing board.

[0031] 2. High accuracy. Two multi-channel preprocessing boards acquire 2n channels of intermediate frequency (IF) input signals and 2n channels of IF output signals upon power-up, ensuring that the amplitude and phase consistency of the 2n channels of IF input signals and 2n channels of IF output signals are tested in one go.

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

[0033] 4. Easy to expand. The multi-channel receiving and transmitting digital signal processing synchronous test system and method of the present invention is easy to integrate and test on a large scale.

[0034] In summary, this invention offers advantages such as high efficiency, high accuracy, high stability, and easy scalability, 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. Attached Figure Description

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

[0036] Figure 2 This is a schematic diagram of the device operating voltage acquisition of the multi-channel preprocessing board in Embodiment 1 of the present invention.

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

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

[0039] Figure 5 This is a schematic diagram of the amplitude and phase consistency test of the intra-board and inter-board transmission channels of the multi-channel preprocessing board in Embodiment 1 of the present invention. Detailed Implementation

[0040] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments are now described. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention; that is, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort 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 synchronous test system, including:

[0043] The first signal source is configured to send the clock signal to the synchronization module and two identical multi-channel preprocessing boards to be tested via the first power divider.

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

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

[0046] The acquisition and processing module is configured to acquire the device operating voltage of the multi-channel preprocessing board;

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

[0048] The regulated power supply is configured to power the multi-channel preprocessing board, synchronization module, acquisition and processing module, and signal processing module;

[0049] The host computer is configured to perform data processing and display on the multi-channel preprocessing board, and to acquire the device operating voltage, load and solidify the program, and test the amplitude and phase consistency of the received and transmitted signals within and between the boards.

[0050] Specifically, such as Figure 1 As shown, the multi-channel receiving and transmitting digital signal processing synchronous test system of this embodiment includes: a multi-channel preprocessing board 1, a multi-channel preprocessing board 2, a synchronization module, an acquisition and processing module, a signal processing module, a regulated 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] The system comprises several components: Signal source 1 sends a clock signal to two multi-channel preprocessing boards and a synchronization module via power divider 1; the synchronization module outputs a 10Hz synchronization signal to the two multi-channel preprocessing boards; Signal source 2 outputs a signal to power divider 2, which then sends 16 signals via RF cables to the 16 input IF signals of the two multi-channel preprocessing boards; simultaneously, the 16 IF transmission signals of the two multi-channel preprocessing boards are also sent via RF cables to the 16 IF input signals of their respective multi-channel preprocessing boards. A regulated power supply provides 12V for the operation of multi-channel preprocessing board 1, multi-channel preprocessing board 2, the synchronization module, the acquisition and processing module, and the signal processing module. The acquisition and processing module acquires the operating voltages of the devices in multi-channel preprocessing boards 1 and 2, and transmits the acquired operating voltages to the host computer via a network cable. The signal processing module delivers data from multi-channel preprocessing boards 1 and 2 via optical fiber and to the host computer via a network cable.

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

[0053] like Figure 3 As shown, the program loading and curing of the multi-channel preprocessing board in this embodiment includes: a regulated power supply providing 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 transmitting the loading program data of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 to the signal processing module via a network cable; and the signal processing module burning the loading program data into the devices of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 via an optical fiber.

[0054] like Figure 4As shown, the amplitude and phase consistency index test of the received channel signals within and between the multi-channel preprocessing boards in this embodiment includes: a regulated power supply provides a 12V voltage as the operating voltage for the multi-channel preprocessing board 1, multi-channel preprocessing board 2, synchronization module, and signal processing module; signal source 1 sends the clock signal to the two multi-channel preprocessing boards and the synchronization module respectively through power divider 1, and the synchronization module outputs a 10Hz synchronization signal to the two multi-channel preprocessing boards; signal source 2 sends 16 signals to the 16 input intermediate frequency signals of the two multi-channel preprocessing boards respectively through power divider 2 via RF cables; the amplitude and phase consistency index of the total 32 input signals of multi-channel preprocessing board 1 and multi-channel preprocessing board 2 is transmitted to the signal processing module through optical fiber, and the signal processing module transmits the amplitude and phase consistency index to the host computer for display via network cable.

[0055] like Figure 5 As shown, the amplitude and phase consistency index test of the transmission channel signals within and between the multi-channel preprocessing board in this embodiment includes: a regulated power supply provides 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 RF cables as the 16 signal inputs of the multi-channel preprocessing board 1, and the 16 output signals of the multi-channel preprocessing board 2 are connected via RF cables as the 16 signal inputs of the multi-channel preprocessing board 2; the amplitude and phase consistency index of the total 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 index to the host computer for display via network cable.

[0056] Example 2

[0057] This embodiment provides a method for synchronous testing of multi-channel receiving and transmitting digital signal processing, including:

[0058] The clock signal is sent from the first signal source to the synchronization module and two identical multi-channel preprocessing boards to be tested via the first power divider.

[0059] The second signal source sends n signals to the multi-channel preprocessing board via the second power divider; each multi-channel preprocessing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and preprocessing of n signals, and the two multi-channel preprocessing boards together complete the reception and transmission of 2n signals between the boards;

[0060] The synchronization module provides a synchronization signal to the two multi-channel preprocessing boards as a trigger signal for data acquisition, ensuring that the phase of the two multi-channel preprocessing boards is 0° when they are powered on to acquire intermediate frequency signal data at different times.

[0061] The device operating voltage of the multi-channel preprocessing board is acquired through the acquisition and processing module;

[0062] The signal processing module performs data delivery between the multi-channel preprocessing board and the host computer.

[0063] The multi-channel preprocessing board, synchronization module, acquisition and processing module, and signal processing module are powered by a regulated power supply.

[0064] The host computer performs data processing and display on the multi-channel preprocessing board, enabling the acquisition of device operating voltage, program loading and solidification, and testing of amplitude and phase consistency of signals received and transmitted within and between the boards.

[0065] Preferably, in this embodiment, the acquisition of device operating voltage of the multi-channel preprocessing board includes: a regulated power supply providing 12V voltage as the operating voltage of the multi-channel preprocessing board 1, the multi-channel preprocessing board 2, and the acquisition and processing module; the acquisition and processing module acquires the device operating voltage 1 to device operating voltage 40 output from the test pads 1 to the test pads 40 of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2, and then uploads the acquired voltage values ​​to the host computer for display via a network cable.

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

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

[0068] Preferably, in this embodiment, the amplitude and phase consistency index test of the transmission channel signals within and between the multi-channel preprocessing board includes: a regulated power supply providing 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 RF cables as 16 signal inputs of the multi-channel preprocessing board 1, and the 16 output signals of the multi-channel preprocessing board 2 are connected via RF cables as 16 signal inputs of the multi-channel preprocessing board 2; the amplitude and phase consistency index of the total 32 output signals of the multi-channel preprocessing board 1 and the multi-channel preprocessing board 2 is transmitted to the signal processing module via optical fiber, and the signal processing module transmits the amplitude and phase consistency index to the host computer for display via network cable.

[0069] It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

Claims

1. A multi-channel receiving and transmitting digital signal processing synchronous test system, characterized in that, include: The first signal source is configured to send the clock signal to the synchronization module and two identical multi-channel preprocessing boards to be tested via the first power divider. The second signal source is configured to send n signals to the multi-channel preprocessing board through the second power divider; each multi-channel preprocessing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and preprocessing of the n signals, and the two multi-channel preprocessing boards together complete the reception and transmission of 2n signals between the boards; The synchronization module is configured to provide a synchronization signal to the two multi-channel preprocessing boards as a trigger signal for data acquisition; The acquisition and processing module is configured to acquire the device operating voltage of the multi-channel preprocessing board; The signal processing module is configured to perform data delivery between the multi-channel preprocessing board and the host computer; The regulated power supply is configured to power the multi-channel preprocessing board, synchronization module, acquisition and processing module, and signal processing module; The host computer is configured to perform data processing and display on the multi-channel preprocessing board, and to realize the acquisition of device operating voltage, program loading and solidification, and amplitude and phase consistency index testing of the received and transmitted signals within and between the boards; The acquisition of device operating voltage of the multi-channel preprocessing board includes: the acquisition and processing module acquires the device operating voltage values ​​of each test pad of the two multi-channel preprocessing boards respectively, and uploads them to the host computer for display. The amplitude and phase consistency test of the transmission channel signals within and between the multi-channel preprocessing boards includes: the n output signals of the two multi-channel preprocessing boards are connected by radio frequency cables and used as their own n signal inputs respectively; the amplitude and phase consistency of the total 2n output signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

2. The multi-channel receiving and transmitting digital signal processing synchronous test 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.

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

4. A method for synchronous testing of multi-channel receiving and transmitting digital signal processing, characterized in that, include: The clock signal is sent from the first signal source to the synchronization module and two identical multi-channel preprocessing boards to be tested via the first power divider. The second signal source sends n signals to the multi-channel preprocessing board via the second power divider; each multi-channel preprocessing board is configured to perform analog-to-digital conversion, digital-to-analog conversion and preprocessing of n signals, and the two multi-channel preprocessing boards together complete the reception and transmission of 2n signals between the boards; The synchronization module provides a synchronization signal to the two multi-channel preprocessing boards as a trigger signal for data acquisition; The device operating voltage of the multi-channel preprocessing board is acquired through the acquisition and processing module; The signal processing module performs data delivery between the multi-channel preprocessing board and the host computer. The multi-channel preprocessing board, synchronization module, acquisition and processing module, and signal processing module are powered by a regulated power supply. The host computer performs data processing and display on the multi-channel preprocessing board, realizing the acquisition of device operating voltage, program loading and solidification, and testing of amplitude and phase consistency indicators of received and transmitted signals within and between the boards. The acquisition of device operating voltage of the multi-channel preprocessing board includes: acquiring the device operating voltage values ​​of each test pad of the two multi-channel preprocessing boards through the acquisition and processing module, and uploading the acquired device operating voltage values ​​to the host computer for display. The amplitude and phase consistency test of the transmission channel signals within and between the multi-channel preprocessing boards includes: the n output signals of the two multi-channel preprocessing boards are connected by radio frequency cables and used as their own n signal inputs respectively; the amplitude and phase consistency of the total 2n output signals of the two multi-channel preprocessing boards are transmitted to the host computer through the signal processing module.

5. The method for synchronous testing of multi-channel receiving and transmitting digital signal processing according to claim 4, 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 via the host computer, and then the signal processing module burning the loading program data into the devices of the two multi-channel preprocessing boards for curing.

6. The method for synchronous testing of multi-channel receiving and transmitting digital signal processing according to claim 4, characterized in that, The amplitude and phase consistency test of the received channel signals within and between the multi-channel preprocessing board includes: sending a clock signal from a first signal source to a synchronization module and two multi-channel preprocessing boards via a first power divider; the synchronization module outputting a synchronization signal to the two multi-channel preprocessing boards; sending n input signals from a second signal source to the two multi-channel preprocessing boards via a second power divider; and transmitting the amplitude and phase consistency of the total 2n input signals of the two multi-channel preprocessing boards to the host computer via a signal processing module.

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