A signal testing and optimization apparatus and method

Abstract

The application provides a signal testing and optimizing device and method, the signal testing and optimizing device comprises a signal distribution module, a signal optimizing module and a signal testing module, the signal distribution module is used for obtaining a first signal, cloning the first signal to obtain a second signal, transmitting the first signal to the signal testing module, and transmitting the second signal to the signal optimizing module, the signal optimizing module is used for optimizing the second signal, obtaining optimization data of the second signal, and transmitting the second signal after optimization to the signal testing module, and the signal testing module is used for testing the first signal and the second signal to obtain a test result, so that the first signal can be optimized according to the optimization data of the second signal in the case that the test result of the second signal meets the requirements but the test result of the first signal does not meet the requirements, and then the optimization data can be obtained at the same time of obtaining the test result, and the optimization efficiency of the signal can be improved.

Description

Technical Field

[0001] This invention relates to the field of signal testing technology, and more specifically to a signal testing and optimization apparatus and method. Background Technology

[0002] Currently, signal integrity testing is typically performed on electronic products to understand their signal transmission during operation and prevent excessive signal loss from affecting product performance. Integrity testing primarily involves sampling and judging the signal at the transmission endpoint to determine if it conforms to relevant standards. However, if a result indicates non-compliance, adjusting and optimizing the signal requires multiple adjustments, tests, and verifications, resulting in low optimization efficiency. Summary of the Invention

[0003] This invention provides a signal testing and optimization apparatus and method to improve signal optimization efficiency.

[0004] In a first aspect, the present invention provides a signal testing and optimization device, comprising a signal distribution module, a signal optimization module and a signal testing module, wherein the signal optimization module is connected to the signal distribution module, and the signal testing module is respectively connected to the signal distribution module and the signal optimization module;

[0005] The signal distribution module is used to acquire a first signal, clone the first signal to obtain a second signal, and transmit the first signal to the signal testing module and the second signal to the signal optimization module.

[0006] The signal optimization module is used to optimize the second signal, obtain optimized data of the second signal, and transmit the optimized second signal to the signal testing module.

[0007] The signal testing module is used to test the first signal and the second signal to obtain the test results of the first signal and the second signal. If the test result of the second signal meets the requirements but the test result of the first signal does not meet the requirements, the first signal is optimized based on the optimization data of the second signal.

[0008] Optionally, it also includes a signal processing module; the signal optimization module and the signal distribution module are connected through the signal processing module;

[0009] The signal processing module is used to perform simulated attenuation processing on the second signal output by the signal distribution module to obtain attenuation data, and transmit the simulated attenuation processed second signal to the signal optimization module, so that the signal optimization module can optimize the second signal to obtain optimized data of the second signal and the correspondence between the optimized data and the attenuation data, so as to optimize the first signal with different attenuation data according to different optimized data, and evaluate and optimize the performance of the real transmission link according to the simulated attenuation processing data and the attenuation data of the real transmission link.

[0010] Optionally, the signal processing module includes multiple signal interference units and / or multiple signal loss units;

[0011] The signal interference unit is used to simulate attenuation of the second signal by applying an interference signal to the second signal output by the signal distribution module.

[0012] The signal loss unit is used to simulate attenuation of the second signal by applying medium transmission loss to the second signal output by the signal distribution module;

[0013] Different signal interference units apply different interference signals, and different signal loss units apply different medium transmission losses, so as to perform different attenuation processing on different second signals to obtain different attenuation data and their corresponding optimized data.

[0014] Optionally, the signal distribution module is further configured to acquire the first signal output by the signal generation module;

[0015] The signal optimization module is also used to feed the optimized data back to the signal generation module;

[0016] The signal testing module is also used to feed back the test results of the first signal and the second signal to the signal generation module;

[0017] The signal generation module is further configured to optimize the first signal based on the optimization data of the second signal when the test result of the first signal does not meet the requirements but the test result of the second signal meets the requirements.

[0018] Optionally, the signal processing module is further configured to feed back the attenuation data to the signal generation device;

[0019] The signal generation device is also used to obtain the correspondence between different optimization data and attenuation data, and to optimize the first signal with different attenuation data according to the different optimization data.

[0020] Optionally, the signal generating device is further configured to trigger the signal optimization module to adjust the parameters of the optimization process and re-obtain the optimized data of the second signal if the test result of the second signal does not meet the requirements.

[0021] Optionally, the signal optimization module is used to perform at least one of amplitude compensation, channel equalization, and phase compensation on the second signal.

[0022] Secondly, the present invention provides a signal testing and optimization method, comprising:

[0023] Obtain a first signal, and clone the first signal to obtain a second signal;

[0024] The second signal is optimized to obtain optimized data of the second signal;

[0025] The first signal and the second signal are tested to obtain the test results of the first signal and the second signal;

[0026] If the test result of the first signal does not meet the requirements but the test result of the second signal meets the requirements, the first signal is optimized based on the optimization data of the second signal.

[0027] Optionally, before performing optimization processing on the second signal to obtain optimized data of the second signal, the method further includes: performing simulated attenuation processing on the second signal to obtain attenuation data;

[0028] The step of optimizing the second signal to obtain optimized data of the second signal includes: optimizing the second signal after the simulated attenuation processing to obtain optimized data of the second signal and the correspondence between the optimized data and the attenuation data;

[0029] After optimizing the second signal to obtain optimized data of the second signal, the method further includes: optimizing signals with different attenuation data based on different optimized data.

[0030] Optionally, the simulated attenuation processing of the second signal includes: applying an interference signal and / or medium transmission loss to the second signal to simulate attenuation.

[0031] Optionally, it also includes: comparing the data from the simulated attenuation processing with the attenuation data from the actual transmission link to evaluate and optimize the performance of the actual transmission link.

[0032] Optionally, the optimization processing of the second signal includes:

[0033] The second signal is subjected to at least one of amplitude compensation, channel equalization, and phase compensation.

[0034] The present invention provides a signal testing and optimization apparatus and method. A signal distribution module acquires a first signal, clones the first signal to obtain a second signal, and transmits the first signal to a signal testing module and the second signal to a signal optimization module. The signal optimization module optimizes the second signal to obtain optimized data for the second signal and transmits the optimized second signal back to the signal testing module. The signal testing module tests the first and second signals to obtain test results for both signals. This allows for optimization of the first signal based on the optimized data of the second signal, even when the test results of the second signal meet the requirements but the test results of the first signal do not. Thus, optimization data can be obtained simultaneously with the test results, thereby improving signal optimization efficiency. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the background art, the accompanying drawings used in the embodiments of the present invention or the background art will be described below.

[0036] Figure 1 This is a schematic diagram of the structure of a signal testing and optimization device provided in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of signal transmission in a signal testing and optimization device provided in an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of signal transmission in a signal testing and optimization device provided in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of another signal testing and optimization device provided in an embodiment of the present invention;

[0040] Figure 5 This is a flowchart of a signal testing and optimization method provided in an embodiment of the present invention. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] As an optional implementation of the disclosure of this invention, an embodiment of this invention provides a signal testing and optimization device, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of a signal testing and optimization device provided in an embodiment of the present invention. The signal testing and optimization device includes a signal distribution module 11, a signal optimization module 12, and a signal testing module 13. The signal optimization module 12 is connected to the signal distribution module 11, and the signal testing module 13 is connected to both the signal distribution module 11 and the signal optimization module 12.

[0043] The signal allocation module 11 acquires a first signal Q1, clones the first signal Q1 to obtain a second signal Q2, transmits the first signal Q1 to the signal testing module 13, and transmits the second signal Q2 to the signal optimization module 12. The signal optimization module 12 optimizes the second signal Q2 to obtain optimized data, and transmits the optimized second signal Q2 to the signal testing module 13. The signal testing module 13 tests the first signal Q1 and the second signal Q2 to obtain test results. If the test result of the second signal Q2 meets the requirements but the test result of the first signal Q1 does not, the first signal Q1 is optimized based on the optimized data of the second signal Q2.

[0044] In this embodiment of the invention, the signal testing module 13 can not only test the first signal Q1, but also test the optimized second signal Q2. Thus, while obtaining the test results of the first signal Q1, it can also obtain the test results and optimization data of the optimized second signal Q2. Since the second signal Q2 is obtained by cloning the first signal Q1, the second signal Q2 is the same signal as the first signal Q1. Therefore, if the test results of the second signal Q2 meet the requirements, but the test results of the first signal Q1 do not meet the requirements, the first signal Q1 can be optimized based on the optimization data of the second signal Q2, thereby improving the signal optimization efficiency.

[0045] In this embodiment of the invention, the first signal Q1 can be a high-speed signal in a digital circuit system, which can be a signal output by a signal generation module, and the signal generation module can be the main control unit in the digital circuit system. Of course, the invention is not limited to this; in other embodiments, the signal generation module can be other units in the digital circuit system.

[0046] Based on this, in some embodiments of the present invention, such as Figure 2 As shown, Figure 2This is a schematic diagram of signal transmission in a signal testing and optimization device provided in an embodiment of the present invention. The signal distribution module 11 is also used to acquire the first signal Q1 output by the signal generation module 10. However, it should be noted that the signal distribution module 11 and the first signal Q1 output by the signal generation module 10 are connected at their transmission ends. That is, there is a transmission link between the signal distribution module 11 and the signal generation module 10. In other words, the first signal Q1 output by the signal generation module 10 is transmitted through the transmission link in the digital circuit system and then enters the signal distribution module 11.

[0047] If the loss or attenuation of the first signal Q1 is very severe, the attenuated first signal Q1 will fail to meet the requirements or standards, leading to the malfunction of the functional modules at the end of the transmission link and resulting in poor performance of the digital circuit system. Therefore, the signal test module 13 needs to perform a signal integrity test on the first signal Q1 at the transmission end to obtain the test results. Of course, the signal test module 13 in this invention can also obtain test results by performing other tests, such as functional tests, on the first signal Q1 and the second signal Q2, which will not be elaborated here.

[0048] During the integrity test, the signal test module 13 acquires the waveforms of the first signal Q1 and the second signal Q2, and compares the acquired waveforms with a standard waveform to obtain a test result indicating whether the waveforms meet the requirements. It is understandable that if the test result does not meet the requirements, it indicates that the signal loss or attenuation is too severe, and the signal after loss or attenuation cannot meet the operating requirements of the digital circuit system; if the test result meets the requirements, it indicates that the signal loss or attenuation is within an acceptable range, and the signal after loss or attenuation can meet the operating requirements of the digital circuit system.

[0049] Based on the above embodiments, in some embodiments of the present invention, such as Figure 3 As shown, Figure 3 This is a schematic diagram of signal transmission for a signal testing and optimization device provided in an embodiment of the present invention. The signal optimization module 12 is further configured to feed back optimization data S1 to the signal generation module 10. The signal testing module 13 is further configured to feed back the test results S2 of the first signal Q1 and the second signal Q2 to the signal generation module 10. The signal generation module 10 is further configured to optimize the first signal Q1 based on the optimization data of the second signal Q2 when the test result of the first signal Q1 does not meet the requirements but the test result of the second signal Q2 meets the requirements. Based on this, the signal generation module 10 can not only output the first signal Q1, but also adjust parameters such as the signal amplitude of the first signal Q1 to output an optimized first signal Q1.

[0050] In some embodiments of the present invention, the signal generation device 10 is further configured to trigger the signal optimization module 12 to adjust the parameters of the optimization process and re-obtain the optimized data of the second signal Q2 when the test result of the second signal Q2 does not meet the requirements.

[0051] In some embodiments, after receiving the test result of the second signal Q2, if the test result does not meet the requirements, the signal generation device 10 automatically initiates a second test request, triggering the signal optimization module 12 to automatically adjust the register parameters, that is, to automatically adjust the parameters for optimization processing, and feeds back the adjusted optimized data to the signal generation device 10. The signal test module 13 also feeds back the result of the second test to the signal generation device 10. If the test result meets the requirements, the signal generation device 10 can optimize the first signal Q1 according to the adjusted optimized data.

[0052] It is understandable that the signal generation device 10 can optimize the first signal Q1 based on the optimization data in each test process, regardless of whether the test result meets the requirements. Alternatively, it can optimize the first signal Q1 based on the optimization data after the test result of the second signal Q2 meets the requirements. This will not be elaborated further here.

[0053] In some embodiments of the present invention, the signal distribution module 11 includes a high-speed discrete signal switch, which is used to implement signal selection and distribution functions. That is, the high-speed discrete signal switch can mirror-clone or copy the first signal Q1 to obtain the second signal Q2, and transmit the first signal Q1 and the second signal Q2 to the signal testing module 13 and the signal optimization module 12, respectively. Of course, the present invention is not limited to this. In other embodiments, the signal distribution module 11 can also implement the signal cloning and distribution functions in other ways.

[0054] In some embodiments of the present invention, the signal optimization module 12 is used to optimize the second signal Q2 by performing at least one of amplitude compensation, channel equalization, and phase compensation. Specifically, the signal optimization module 12 detects the received second signal Q2 to determine whether its signal threshold is within the normal range. If it is within the normal range, the second signal Q2 is directly transmitted to the signal testing module 13, and the current amplitude and other relevant data of the second signal Q2 are fed back to the signal generation module 10 as optimization data. If it is not within the normal range, the amplitude and other parameters are adjusted, and the adjusted data is fed back to the signal generation module 10 as optimization data.

[0055] The signal optimization module 12 can detect the amplitude information of the second signal Q2 and compensate for the skin effect and dielectric loss of the second signal Q2 through multiple transition differential signal data channels and a clock channel to perform amplitude compensation for the second signal Q2. The clock channel can be optimized for signals with a maximum clock frequency of 225MHz, and is equipped with a signal detector, which can be a programmable threshold signal detector to maximize the noise immunity of the clock channel.

[0056] The signal optimization module 12 can also automatically switch between being a transfer driver and a retimer based on the input data rate. It can automatically configure itself as a transfer driver when the data rate is below 1Gbps and as a retimer when the rate exceeds this. Specifically, when used as a transfer driver, the signal optimization module 12 can amplify the received second signal Q2; when used as a retimer, it can clear high-frequency fluctuations at the input and random jitter from the signal source through its built-in clock and data recovery (CDR) function.

[0057] In addition, the signal optimization module 12 may also have a signal source selection function. The operation and configuration of the signal optimization module 12 can be supported via pin settings or I2C programming. To ensure signal integrity, the signal optimization module 12 may also have adaptive and fixed channel equalization functions to eliminate inter-symbol interference (ISI) jitter or loss caused by bandwidth limitations in circuit board traces or cables.

[0058] In some embodiments of the present invention, the signal optimization module 12 has two control modes: GPIO (General-purpose input / output) mode and I2C mode, to support independent channel control of equalization, gain, and dynamic range using I2C and GPIO configurations. The selection between these two modes, GPIO and I2C, can be made via the EN terminal. When the EN terminal is connected to a low level, the GPIO mode is activated; otherwise, the I2C mode is activated.

[0059] The signal optimization module 12 implements channel equalization through a channel equalizer that supports multiple programmable levels of equalization boost. The specific control pin state determines how the boost settings are controlled. If the control pin is held high, the equalizer boost settings are controlled by the pin, and the boost setting selected on the pin will be applied to all data channels. If the control pin is held low, the equalizer boost settings are controlled by the I2C bus and accessed through the appropriate I2C bus register. Using this method, the channel equalizer boost settings can be programmed individually for each channel.

[0060] When the signal optimization module 12 uses the I2C bus serial interface for digital control, the SDA and SCK pins of the signal optimization module 12 are driven by the microcontroller's serial data and serial clock, respectively. The SDA and SCK pins require external pull-up resistors to VCC. The two-wire interface allows write access to the internal memory map to modify control registers and read control and status signals.

[0061] When the signal optimization module 12 uses the GPIO interface for digital control, it configures the current IO pins to output high and low levels through the microcontroller. Different IO combinations correspond to different amplitude adjustment, equalization and other adjustment parameters.

[0062] In some embodiments of the present invention, such as Figure 4 As shown, Figure 4 This is a schematic diagram of another signal testing and optimization device provided in an embodiment of the present invention. The signal testing and optimization device further includes a signal processing module 14; the signal optimization module 12 and the signal distribution module 11 are connected through the signal processing module 14.

[0063] The signal processing module 14 performs simulated attenuation processing on the second signal Q2 output by the signal distribution module 11 to obtain attenuation data, and transmits the simulated attenuation processed second signal Q2 to the signal optimization module 12 so that the signal optimization module 12 optimizes the second signal Q2 to obtain optimized data of the second signal Q2 and the correspondence between the optimized data and the attenuation data. Based on the different optimized data, the first signal Q1 with different attenuation data is optimized. Based on the simulated attenuation processing data and the attenuation data of the actual transmission link, the performance of the actual transmission link is evaluated and optimized.

[0064] In some embodiments, the attenuation data of the transmission link processed by simulation attenuation can be compared with the attenuation data of the real transmission link to quantitatively evaluate the attenuation data such as dielectric loss or interference of the real transmission link. Based on the evaluation results, the real transmission link can be optimized, such as by setting up a signal optimization unit or adjusting the trace length, to reduce the dielectric loss or interference of the real transmission link.

[0065] Based on the above embodiments, in some embodiments of the present invention, the signal processing module 14 includes multiple signal interference units and / or multiple signal loss units. The signal interference units are used to simulate attenuation of the second signal Q2 output by the signal distribution module 11 by applying interference signals; the signal loss units are used to simulate attenuation of the second signal Q2 output by the signal distribution module 11 by applying medium transmission loss; wherein, the interference signals applied by different signal interference units are different, and the medium transmission losses applied by different signal loss units are different, so as to perform different attenuation processes on different second signals Q2 to obtain different attenuation data and their corresponding optimized data.

[0066] The signal interference unit may include a signal generation unit, which applies an interference signal to the second signal Q2 by inputting the interference signal generated by the signal generation unit into the transmission link of the second signal Q2. The signal loss unit applies dielectric transmission loss to the second signal Q2 by setting a trace of a certain length on the PCB board where the transmission link of the second signal Q2 is located. Different signal loss units set different trace lengths to apply different dielectric transmission losses. Furthermore, transmission links with different interference signals and transmission links with different dielectric transmission losses can be connected to the signal optimization module 12 via overlapping pads or high-speed signal discrete switches.

[0067] In some embodiments of the present invention, the signal processing module 14 is further configured to feed back the attenuation data to the signal generation device 10; the signal generation device 10 is further configured to obtain the correspondence between different optimized data and attenuation data, and optimize the first signal Q1 with different attenuation data according to the different optimized data.

[0068] Of course, the present invention is not limited to this. In other embodiments, the signal processing module 14 can store different optimization data and their corresponding attenuation data, and after receiving the second signal Q2, compare the attenuation data of the second signal Q2 with the stored attenuation data. If the two attenuation data are the same, the second signal Q2 can be optimized according to the optimization data corresponding to the attenuation data.

[0069] As another optional implementation of the disclosed content of this invention, embodiments of this invention provide a signal testing and optimization method, such as... Figure 5 As shown, Figure 5 This is a flowchart illustrating a signal testing and optimization method provided in an embodiment of the present invention. The signal testing and optimization method includes:

[0070] S501: Obtain the first signal and clone the first signal to obtain the second signal;

[0071] refer to Figure 1The signal distribution module 11 acquires the first signal Q1 output by the signal generation module 10, clones the first signal Q1 to obtain the second signal Q2, and transmits the first signal Q1 to the signal testing module 13 and the second signal Q2 to the signal optimization module 12.

[0072] S502: Optimize the second signal to obtain optimized data of the second signal;

[0073] refer to Figure 1 The signal optimization module 12 optimizes the second signal Q2 to obtain optimized data of the second signal Q2, and transmits the optimized second signal Q2 to the signal testing module 13.

[0074] S503: Test the first signal and the second signal to obtain the test results of the first signal and the second signal;

[0075] refer to Figure 1 The signal testing module 13 tests the first signal Q1 and the second signal Q2 to obtain the test results of the first signal Q1 and the second signal Q2. In some embodiments, the signal testing module 13 feeds back the test results to the signal generation module 10.

[0076] S504: If the test result of the first signal does not meet the requirements but the test result of the second signal meets the requirements, optimize the first signal based on the optimization data of the second signal.

[0077] In some embodiments, after the signal testing module 13 feeds back the test results to the signal generation module 10, the signal generation module 10 will optimize the first signal Q1 based on the optimization data of the second signal Q2 if the test result of the first signal Q1 does not meet the requirements but the test result of the second signal Q2 meets the requirements.

[0078] In this embodiment of the invention, not only can the first signal Q1 be tested, but the optimized second signal Q2 can also be tested. This allows for obtaining the test results and optimization data of the optimized second signal Q2 simultaneously with the test results of the first signal Q1. Since the second signal Q2 is obtained by cloning the first signal Q1, it is the same signal as the first signal Q1. Therefore, even if the test results of the second signal Q2 meet the requirements, but the test results of the first signal Q1 do not, the first signal Q1 can be optimized based on the optimization data of the second signal Q2, thereby improving the signal optimization efficiency.

[0079] In some embodiments of the present invention, before optimizing the second signal to obtain optimized data of the second signal, the method further includes: performing simulated attenuation processing on the second signal to obtain attenuation data; optimizing the second signal to obtain optimized data of the second signal includes: optimizing the second signal after simulated attenuation processing to obtain optimized data of the second signal and the correspondence between the optimized data and the attenuation data; after optimizing the second signal to obtain optimized data of the second signal, the method further includes: optimizing signals with different attenuation data according to different optimized data.

[0080] In some embodiments of the present invention, the simulated attenuation processing of the second signal includes: applying an interference signal and / or medium transmission loss to the second signal to simulate attenuate the second signal.

[0081] In some embodiments, the second signal can be simulated by applying an interference signal to the second signal through a signal interference unit; the second signal can be simulated by applying a medium transmission loss to the second signal through a signal loss unit; wherein the interference signals applied by different signal interference units are different, and the medium transmission losses applied by different signal loss units are different, so as to perform different attenuation processing on different second signals, so as to obtain different attenuation data and their corresponding optimized data.

[0082] In some embodiments of the present invention, the signal testing and optimization method further includes: comparing the data processed by simulated attenuation with the attenuation data of the real transmission link to evaluate and optimize the performance of the real transmission link.

[0083] In some embodiments, the attenuation data of the transmission link processed by simulation attenuation can be compared with the attenuation data of the real transmission link to quantitatively evaluate the attenuation data such as dielectric loss or interference of the real transmission link. Based on the evaluation results, the real transmission link can be optimized, such as by setting up a signal optimization unit or adjusting the trace length, to reduce the dielectric loss or interference of the real transmission link.

[0084] In some embodiments of the present invention, optimizing the second signal includes at least one of amplitude compensation, channel equalization, and phase compensation. Specifically, the received second signal may first be detected to determine whether its signal threshold is within a normal range. If it is within the normal range, the second signal is directly transmitted to the signal testing module, and its amplitude and other relevant data are fed back to the signal generation module as optimization data. If it is outside the normal range, the amplitude and other parameters are adjusted, and the adjusted data is fed back to the signal generation module as optimization data.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above embodiments are merely illustrative of several implementation methods described in detail, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this specification, and these all fall within the protection scope of this specification. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A signal testing and optimization device, characterized in that, It includes a signal distribution module, a signal optimization module, a signal testing module, and a signal processing module. The signal optimization module is connected to the signal distribution module, the signal testing module is connected to both the signal distribution module and the signal optimization module, and the signal optimization module is connected to the signal distribution module through the signal processing module. The signal allocation module is used to acquire a first signal, clone the first signal to obtain a second signal, transmit the first signal to the signal testing module, and transmit the second signal to the signal optimization module; the second signal is the same as the first signal. The signal optimization module is used to optimize the second signal, obtain optimized data of the second signal, and transmit the optimized second signal to the signal testing module. The signal testing module is used to test the first signal and the second signal to obtain the test results of the first signal and the second signal, so as to optimize the first signal based on the optimization data of the second signal when the test result of the second signal meets the requirements but the test result of the first signal does not meet the requirements. The signal processing module is used to perform simulated attenuation processing on the second signal output by the signal distribution module to obtain attenuation data, and transmit the simulated attenuation processed second signal to the signal optimization module, so that the signal optimization module can optimize the second signal to obtain optimized data of the second signal and the correspondence between the optimized data and the attenuation data, so as to optimize the first signal with different attenuation data according to different optimized data, and evaluate and optimize the performance of the real transmission link according to the simulated attenuation processing data and the attenuation data of the real transmission link.

2. The signal testing and optimization device according to claim 1, characterized in that, The signal processing module includes multiple signal interference units and / or multiple signal loss units; The signal interference unit is used to simulate attenuation of the second signal by applying an interference signal to the second signal output by the signal distribution module. The signal loss unit is used to simulate attenuation of the second signal by applying medium transmission loss to the second signal output by the signal distribution module; Different signal interference units apply different interference signals, and different signal loss units apply different medium transmission losses, so as to perform different attenuation processing on different second signals to obtain different attenuation data and their corresponding optimized data.

3. The signal testing and optimization apparatus according to claim 1 or 2, characterized in that, The signal distribution module is also used to acquire the first signal output by the signal generation module; The signal optimization module is also used to feed the optimized data back to the signal generation module; The signal testing module is also used to feed back the test results of the first signal and the second signal to the signal generation module; The signal generation module is further configured to optimize the first signal based on the optimization data of the second signal when the test result of the first signal does not meet the requirements but the test result of the second signal meets the requirements.

4. The signal testing and optimization apparatus according to claim 3, characterized in that, The signal processing module is also used to feed back the attenuation data to the signal generation module; The signal generation module is also used to obtain the correspondence between different optimized data and attenuation data, and to optimize the first signal with different attenuation data according to the different optimized data.

5. The signal testing and optimization apparatus according to claim 3, characterized in that, The signal generation module is also used to trigger the signal optimization module to adjust the parameters of the optimization process and re-obtain the optimized data of the second signal if the test result of the second signal does not meet the requirements.

6. The signal testing and optimization apparatus according to claim 1, characterized in that, The signal optimization module is used to perform at least one of amplitude compensation, channel equalization, and phase compensation on the second signal.

7. A signal testing and optimization method, characterized in that, The signal testing and optimization apparatus according to any one of claims 1-6, wherein the signal testing and optimization method comprises: A first signal is acquired, and a second signal is obtained by cloning the first signal; the second signal is the same as the first signal. The second signal is subjected to simulated attenuation processing to obtain attenuation data; The second signal after the simulated attenuation processing is optimized to obtain optimized data of the second signal and the correspondence between the optimized data and the attenuation data; Optimize signals with different attenuation data based on different optimization data; The first signal and the second signal are tested to obtain the test results of the first signal and the second signal; If the test result of the first signal does not meet the requirements but the test result of the second signal meets the requirements, the first signal is optimized based on the optimization data of the second signal.

8. The signal testing and optimization method according to claim 7, characterized in that, The simulated attenuation processing of the second signal includes: applying an interference signal and / or medium transmission loss to the second signal to simulate attenuation.

9. The signal testing and optimization method according to claim 7, characterized in that, Also includes: The simulated attenuation data is compared with the attenuation data of the real transmission link to evaluate and optimize the performance of the real transmission link.

10. The signal testing and optimization method according to claim 7, characterized in that, The optimization processing of the second signal includes at least one of amplitude compensation, channel equalization, and phase compensation.

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