An adaptive control system for microwave amplifiers

Abstract

The invention provides a microwave amplifier adaptive control system, and relates to the technical field of microwave amplifiers. The invention comprises an environment data acquisition module, an environment data cache module, an environment fluctuation monitoring module, a loop processing control module, a pre-distortion correction processing module and a microwave amplifier module. The loop correction processing is performed by utilizing the idle time of a signal delay window to improve the correction resolution without changing the fixed processing frequency, thereby realizing the amplification of the correction resolution and slowing down the steepness of data changes. Based on the requirements of different scenarios, a high-delay high-precision control strategy, a low-delay low-precision control strategy and a compromise control strategy are provided to determine the number of loop correction processing times. In addition, the system also comprises a method for measuring an over-position variation and a method for measuring a delay processing window, as well as a method for adjusting a sliding interception position of a correction processing window by an adaptive sliding variable.

Description

Technical Field

[0001] The invention relates to the technical field of microwave amplifiers, in particular to an adaptive control system for a microwave amplifier. Background Art

[0002] With the development of signal processing technology, microwave power amplifiers are increasingly used in our production and life. It is one of the core components of our modern communication equipment, and the quality of its output amplified signal is directly related to the stability of the communication system. However, microwave power amplifiers will have different degrees of nonlinear distortion due to internal and external environmental influences. Therefore, we need to perform dynamic management according to actual conditions to eliminate the impact of nonlinear distortion.

[0003] The existing nonlinear distortion correction processing is based on pre-distortion processing technology. We usually collect environmental data changes through sensor modules and record them as change curves (such as changes in temperature, voltage, electromagnetic environment, etc.), and then perform nonlinear distortion processing on each point on the change curve one by one at a fixed processing frequency; before the next processing is completed, signal correction will be performed based on the previous processing results until the next processing is completed.

[0004] When using the pre-distortion processing technology, we obtain the pre-distortion calibration parameters corresponding to each point on the change curve, generate a reverse signal corresponding to the nonlinear distortion, and complete the nonlinear distortion correction by signal superposition; in this process, if the next pre-distortion calibration parameter has not been obtained, the previous pre-distortion calibration parameter will be used until the next pre-distortion calibration parameter appears, thereby achieving continuous processing.

[0005] This method is applicable to situations where the parameters do not change much. However, when faced with drastic changes in environmental data, the fixed processing frequency used will cause the previous processing results to become invalid, resulting in poor or even ineffective nonlinear distortion correction.

[0006] Therefore, there is an urgent need for an adaptive control system for microwave amplifiers to solve the problem that when nonlinear distortion correction is processed, the effect will be poor or even ineffective when faced with drastic changes in external environmental data. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a microwave amplifier adaptive control system, which aims to solve the problem that the prior art has poor pre-distortion correction processing effect when the environmental data changes dramatically. The system improves the resolution of the pre-distortion correction processing and reduces the steepness of the data change, thereby improving the correction processing effect and usability.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] The present invention provides a microwave amplifier adaptive control system, comprising an environmental data acquisition module, an environmental data buffer module, an environmental fluctuation monitoring module, a loop processing control module, a pre-distortion correction processing module and a microwave amplifier module; wherein:

[0010] Environmental data acquisition module: used to collect environmental data that affects the operation of the microwave amplifier and convert it into digital signal quantity;

[0011] Environmental data cache module: used to continuously cache environmental data and manage internal cache data according to FIFO queue;

[0012] Environmental fluctuation monitoring module: used to monitor changes in environmental data and mark data points; in particular, when environmental data fluctuations cause the pre-distortion correction signal to be unreliable, the super-point is marked;

[0013] Loopback processing control module: used for controlling the pre-distortion correction processing module to perform loopback correction processing based on the super-site position;

[0014] Pre-distortion correction processing module: used to perform pre-distortion correction processing on the original input signal at a fixed processing frequency according to the environmental data provided by the environmental data cache module to obtain a pre-distortion correction signal;

[0015] Microwave amplifier module: used to perform microwave amplification processing on the pre-distortion correction signal, obtain the microwave amplified signal and send it to the post-processing unit.

[0016] As a further solution, the loop processing control module performs loop correction processing through the following steps:

[0017] Step 1: The environmental fluctuation monitoring module informs the adaptive frequency control module of the data point of the super-point;

[0018] Step 2: The adaptive frequency control module obtains the delay processing window corresponding to the post-processing unit, the fixed processing frequency and the correction processing window of the pre-distortion correction processing module, and calculates the number of loop correction processing times;

[0019] Step 3: The predistortion correction processing module continuously slides out the environmental data from the FIFO queue through the correction processing window, and completes the current predistortion correction processing based on the environmental data; wherein, if the correction processing window contains a super-point, step 4 is executed after the current predistortion correction processing is completed;

[0020] Step 4: The loop processing control module controls the environment data cache module not to release the environment data taken out of the FIFO queue, and sets the correction processing window offset according to the number of loop correction processing times, and adjusts the correction processing window sliding interception position;

[0021] Step 5: Determine whether the number of loop correction processing times is zero; if it is zero, release the environment data taken out of the FIFO queue and execute step 6; otherwise, return to execute step 3;

[0022] Step 6: By superimposing each correction processing window and retaining the part that overlaps with the sliding interception position before adjustment, a high-precision correction processing window is obtained;

[0023] Step 7: Perform signal synthesis processing on the predistortion correction signals obtained by each predistortion correction process through a high-precision correction processing window to obtain a high-resolution predistortion correction signal;

[0024] Step 8: Send the high-resolution predistortion correction signal to the microwave amplifier module and perform microwave amplification processing to obtain a high-resolution microwave amplification signal.

[0025] As a further solution, the environmental fluctuation monitoring module obtains the environmental data corresponding to the first and second data points, and determines whether the change between the two environmental data exceeds the super-point change; if exceeded, the pre-distortion correction signal of the corresponding data point is unreliable, and the first and second data points are marked as super-point points.

[0026] As a further solution, the superposition change is determined by the following steps:

[0027] Place the microwave amplifier module in an environmental simulation scenario and set the test input signal and microwave amplification reference signal;

[0028] Set the test environment data with different changes from low to high, and control the environment simulation scene to follow the changes;

[0029] The test environment data is input into the pre-distortion correction processing module, and the pre-distortion correction processing module performs pre-distortion correction processing on the test input signal at a fixed processing frequency according to the test environment data to obtain a pre-distortion correction test signal;

[0030] The microwave amplifier module performs microwave amplification processing on the predistortion correction test signal to obtain a microwave amplification test signal;

[0031] The microwave amplification test signal and the microwave amplification reference signal are compared. When an error exceeds the allowable range, the change at this time is recorded to obtain the over-position change.

[0032] As a further solution, the delay processing window is determined by the following steps:

[0033] Installing a delay module between the pre-distortion correction processing module and the microwave amplifier module;

[0034] Determining a correction processing window used by a pre-distortion correction processing module;

[0035] Under the standard environment, start the pre-distortion correction processing module and the microwave amplifier module, and input the standard input signal. When the output microwave amplification signal reaches a steady state, proceed to the next step.

[0036] Increase the delay parameters set by the delay module and observe whether the post-processing unit has delay errors;

[0037] If a delay error occurs, the duration corresponding to the current delay parameter is output as the delay processing window;

[0038] If no delay error occurs, continue to increase the delay parameter set by the delay module until a delay error occurs in the post-processing unit.

[0039] As a further solution, the loop processing control module determines the number of loop correction processing times through a high-delay and high-precision control strategy; wherein, the high-delay and high-precision control strategy: the number of loop correction processing times = [delay processing window length / correction processing window length].

[0040] As a further solution, the loop processing control module determines the number of loop correction processing times through a low-latency and low-precision control strategy: wherein the low-latency and low-precision control strategy: the number of loop correction processing times is amplified from 0 by +1 iteration, and amplified until there is no super-point within the high-precision correction processing window.

[0041] As a further solution, the environmental fluctuation monitoring module also performs loop correction processing monitoring through the following steps:

[0042] Through high-precision correction processing window, the data points corresponding to the equivalent fixed processing frequency are obtained;

[0043] Calculate the high-precision super-position change; where the high-precision super-position change = super-position change / number of loop correction processing times;

[0044] Obtain the environmental data corresponding to the first and second data points, and determine whether the change between the two environmental data exceeds the high-precision super-position change;

[0045] If there are any excess data points in the high-precision correction processing window, it is considered that the loop correction has partially failed, and the excess data points are fed back to the post-processing unit.

[0046] As a further solution, the loop processing control module determines the number of loop correction processing times through a compromise control strategy; wherein the compromise control strategy: obtains the number of loop correction processing times corresponding to the high-latency and high-precision control strategy and the low-latency and low-precision control strategy, and averages the compromised number of loop correction processing times.

[0047] As a further solution, the sliding interception position of the correction processing window is adjusted by an adaptive sliding variable; wherein, the adaptive sliding variable = (correction processing window length / fixed processing frequency) / (number of loop correction processing times + 1).

[0048] Compared with the related art, the microwave amplifier adaptive control system provided by the present invention has the following advantages:

[0049] The present invention utilizes the idle time of the signal delay window to perform loop correction processing to improve the correction resolution without changing the fixed processing frequency. By controlling the loop correction processing of the pre-distortion correction processing module within the delay processing window, the correction resolution is amplified, thereby reducing the steepness of data changes. Based on the needs of different scenarios, a high-delay high-precision control strategy, a low-delay low-precision control strategy and a compromise control strategy are provided to determine the number of loop correction processing times. In addition, the system also includes a method for measuring the amount of super-position change and a method for measuring the delay processing window, as well as a method for adjusting the sliding interception position of the correction processing window through an adaptive sliding variable. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of the structure of a microwave amplifier adaptive control system provided by the present invention.

[0051] Figure 2 A schematic diagram of a loop correction process provided by the present invention.

[0052] Figure 3 This is a schematic diagram of a specific embodiment of the correction processing window provided by the present invention. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0054] See also Figure 1The present invention provides a microwave amplifier adaptive control system, comprising an environmental data acquisition module, an environmental data buffer module, an environmental fluctuation monitoring module, a loop processing control module, a pre-distortion correction processing module and a microwave amplifier module; wherein,

[0055] Environmental data acquisition module: used to collect environmental data that affects the operation of the microwave amplifier and convert it into digital signal quantity;

[0056] Environmental data cache module: used to continuously cache environmental data and manage internal cache data according to FIFO queue;

[0057] Environmental fluctuation monitoring module: used to monitor changes in environmental data and mark data points; in particular, when environmental data fluctuations cause the pre-distortion correction signal to be unreliable, the super-point is marked;

[0058] Loopback processing control module: used for controlling the pre-distortion correction processing module to perform loopback correction processing based on the super-site position;

[0059] Pre-distortion correction processing module: used to perform pre-distortion correction processing on the original input signal at a fixed processing frequency according to the environmental data provided by the environmental data cache module to obtain a pre-distortion correction signal;

[0060] Microwave amplifier module: used to perform microwave amplification processing on the pre-distortion correction signal, obtain the microwave amplified signal and send it to the post-processing unit.

[0061] It should be noted that when the environmental data undergoes drastic changes, the pre-distortion correction processing effect of the prior art is poor or even ineffective. The reason is that the data changes too steeply during the interval between the previous pre-distortion correction signal and the next pre-distortion correction signal. If the interval can be shortened, the steepness of the data change can be reduced, thereby improving the pre-distortion correction processing effect and availability; that is, if we can increase the processing frequency of the pre-distortion correction processing module, we can also achieve a shortened interval.

[0062] However, the pre-distortion correction processing module often uses a fixed processing frequency and is difficult to adjust. The reason is that it is limited by the limited computing speed and read and write speed. When setting the fixed processing frequency (which can also be understood as the maximum processing frequency in some cases), the performance of the hardware MCU is often used as much as possible. The fixed processing frequency is difficult to further increase, and changing the preset fixed processing frequency requires changing the firmware program, which will increase uncontrollable risks and implementation difficulties, and most module firmware is not public. Therefore, the method of directly increasing the processing frequency is not feasible. We need to explore a way based on the existing hardware level to obtain a higher resolution pre-distortion correction signal without changing the fixed processing frequency (or even without changing the pre-distortion correction processing module) to reduce the steepness of data changes.

[0063] At this time, we thought of setting a certain redundancy between each system module, that is, the post-processing unit allows the microwave amplifier module of the previous stage to have a certain signal delay window, and the microwave amplifier module often only occupies a part of the signal delay window, and the rest of the time is often in an idle standby state; the present invention cleverly thinks of using another part of the signal delay window (that is, the delay processing window), and controls the loop correction processing of the pre-distortion correction processing module within the delay processing window by setting a loop processing control module, thereby achieving correction resolution amplification without changing the fixed processing frequency and the pre-distortion correction processing module.

[0064] Taking voltage as an example, the steepness of data changes corresponding to voltage 5.5v and voltage 5.2v is relatively low, and the previous pre-distortion correction signal can be used before the next pre-distortion correction signal appears; but the steepness of data changes corresponding to voltage 5.5v and voltage 6.5v is relatively high, and the previous pre-distortion correction signal cannot be used before the next pre-distortion correction signal appears.

[0065] For ease of understanding, we consider the environmental data as Figure 3 As shown in the figure, a continuous change curve (actually composed of discrete points) is shown, and the correction processing window is set to 5ms, the fixed processing frequency is 2, and the acceptable delay is 30ms. We reserve a 10ms margin, that is, the delay processing window is 20ms; if we perform three loop correction processes in between, it can just fill the delay processing window (5+3*5=20), and we can obtain a high-precision correction processing window without changing the fixed processing frequency. The equivalent fixed processing frequency becomes 8, that is, the steepness becomes 1 / 4 of the previous one. Obviously, the previous pre-distortion correction signal obtained in this way can continue to be used until the next pre-distortion correction signal appears.

[0066] like Figure 2 As shown, the loop processing control module performs loop correction processing through the following steps:

[0067] Step 1: The environmental fluctuation monitoring module informs the adaptive frequency control module of the data point of the super-point;

[0068] Step 2: The adaptive frequency control module obtains the delay processing window corresponding to the post-processing unit, the fixed processing frequency and the correction processing window of the pre-distortion correction processing module, and calculates the number of loop correction processing times;

[0069] Step 3: The predistortion correction processing module continuously slides out the environmental data from the FIFO queue through the correction processing window, and completes the current predistortion correction processing based on the environmental data; wherein, if the correction processing window contains a super-point, step 4 is executed after the current predistortion correction processing is completed;

[0070] Step 4: The loop processing control module controls the environment data cache module not to release the environment data taken out of the FIFO queue, and sets the correction processing window offset according to the number of loop correction processing times, and adjusts the correction processing window sliding interception position;

[0071] Step 5: Determine whether the number of loop correction processing times is zero; if it is zero, release the environment data taken out of the FIFO queue and execute step 6; otherwise, return to execute step 3;

[0072] Step 6: By superimposing each correction processing window and retaining the part that overlaps with the sliding interception position before adjustment, a high-precision correction processing window is obtained;

[0073] Step 7: Perform signal synthesis processing on the predistortion correction signals obtained by each predistortion correction process through a high-precision correction processing window to obtain a high-resolution predistortion correction signal;

[0074] Step 8: Send the high-resolution predistortion correction signal to the microwave amplifier module and perform microwave amplification processing to obtain a high-resolution microwave amplification signal.

[0075] It should be noted that we did not change any structure or operating logic of the pre-distortion correction processing module and the microwave amplifier module. Instead, we added an environmental data cache module, controlled the data retention and release of the FIFO queue through the loopback processing control module, and adjusted the correction processing window (in fact, we only changed and restored the cached data timestamp, and did not adjust the real correction processing window of the pre-distortion correction processing module). The adaptive frequency control module cleverly controlled the logic and realized the use of the delay processing window to allow the pre-distortion correction processing module to perform loopback processing.

[0076] As a further solution, the environmental fluctuation monitoring module obtains the environmental data corresponding to the first and second data points, and determines whether the change between the two environmental data exceeds the super-point change; if exceeded, the pre-distortion correction signal of the corresponding data point is unreliable, and the first and second data points are marked as super-point points.

[0077] As a further solution, the superposition change is determined by the following steps:

[0078] Place the microwave amplifier module in an environmental simulation scenario and set the test input signal and microwave amplification reference signal;

[0079] Set the test environment data with different changes from low to high, and control the environment simulation scene to follow the changes;

[0080] The test environment data is input into the pre-distortion correction processing module, and the pre-distortion correction processing module performs pre-distortion correction processing on the test input signal at a fixed processing frequency according to the test environment data to obtain a pre-distortion correction test signal;

[0081] The microwave amplifier module performs microwave amplification processing on the predistortion correction test signal to obtain a microwave amplification test signal;

[0082] The microwave amplification test signal and the microwave amplification reference signal are compared. When an error exceeds the allowable range, the change at this time is recorded to obtain the over-position change.

[0083] As a further solution, the delay processing window is determined by the following steps:

[0084] Installing a delay module between the pre-distortion correction processing module and the microwave amplifier module;

[0085] Determining a correction processing window used by a pre-distortion correction processing module;

[0086] Under the standard environment, start the pre-distortion correction processing module and the microwave amplifier module, and input the standard input signal. When the output microwave amplification signal reaches a steady state, proceed to the next step.

[0087] Increase the delay parameters set by the delay module and observe whether the post-processing unit has delay errors;

[0088] If a delay error occurs, the duration corresponding to the current delay parameter is output as the delay processing window;

[0089] If no delay error occurs, continue to increase the delay parameter set by the delay module until a delay error occurs in the post-processing unit.

[0090] As a further solution, the loop processing control module determines the number of loop correction processing times through a high-delay and high-precision control strategy; wherein, the high-delay and high-precision control strategy: the number of loop correction processing times = [delay processing window length / correction processing window length].

[0091] It should be noted that: since the number of loop closures will increase the delay, we ensure that it is within the delay processing window and provide a high-precision strategy. The idea is to increase the number of loop correction processing times as much as possible at the cost of a certain delay; it is suitable for scenarios with high-precision correction requirements.

[0092] As a further solution, the loop processing control module determines the number of loop correction processing times through a low-latency and low-precision control strategy: wherein the low-latency and low-precision control strategy: the number of loop correction processing times is amplified from 0 by +1 iteration, and amplified until there is no super-point within the high-precision correction processing window.

[0093] It should be noted that: in the scenario with low latency requirements, we hope to set the number of loop correction processing times as small as possible, just to ensure that there are no super-points in the high-precision correction processing window.

[0094] As a further solution, the environmental fluctuation monitoring module also performs loop correction processing monitoring through the following steps:

[0095] Through high-precision correction processing window, the data points corresponding to the equivalent fixed processing frequency are obtained;

[0096] Calculate the high-precision super-position change; where the high-precision super-position change = super-position change / number of loop correction processing times;

[0097] Obtain the environmental data corresponding to the first and second data points, and determine whether the change between the two environmental data exceeds the high-precision super-position change;

[0098] If there are any excess data points in the high-precision correction processing window, it is considered that the loop correction has partially failed, and the excess data points are fed back to the post-processing unit.

[0099] It should be noted that sometimes, even after loop correction, there are still some data points that exceed the super-position change amount, and the super-position change amount at this time will also change due to the change in resolution. This embodiment automatically calculates the corresponding high-precision super-position change amount, thereby accurately determining whether there are data points that exceed the super-position change amount under high-precision conditions, avoiding omissions, and notifying the subsequent stage to prepare.

[0100] As a further solution, the loop processing control module determines the number of loop correction processing times through a compromise control strategy; wherein the compromise control strategy: obtains the number of loop correction processing times corresponding to the high-latency and high-precision control strategy and the low-latency and low-precision control strategy, and averages the compromised number of loop correction processing times.

[0101] This step is a compromise of the above steps and is applicable to most scenarios. However, the average of odd and even numbers may occur half a time. When this occurs, round up, round down, or a combination of rounding is performed according to the set rounding strategy.

[0102] As a further solution, the sliding interception position of the correction processing window is adjusted by an adaptive sliding variable; wherein, the adaptive sliding variable = (correction processing window length / fixed processing frequency) / (number of loop correction processing times + 1).

[0103] It should be noted that: Figure 3 As shown, the calculation formula can be adjusted automatically according to the number of loop correction processing times.

[0104] The above embodiments only express preferred implementation modes, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A microwave amplifier adaptive control system, characterized in that: It includes an environmental data acquisition module, an environmental data cache module, an environmental fluctuation monitoring module, an adaptive frequency control module, a pre-distortion correction processing module and a microwave amplifier module; wherein, Environmental data acquisition module: used to collect environmental data that affects the operation of the microwave amplifier and convert it into digital signal quantity; Environmental data cache module: used to continuously cache environmental data and manage internal cache data according to FIFO queue; Environmental fluctuation monitoring module: used to monitor changes in environmental data and mark data points; in particular, when environmental data fluctuations cause the pre-distortion correction signal to be unreliable, the super-point is marked; Adaptive frequency control module: used to perform loop correction processing based on the super-site control pre-distortion correction processing module, realize the amplification of the adaptive control correction resolution, and obtain a high-resolution pre-distortion correction signal; Pre-distortion correction processing module: used to perform pre-distortion correction processing on the original input signal at a fixed processing frequency according to the environmental data provided by the environmental data cache module to obtain a pre-distortion correction signal; Microwave amplifier module: used to perform microwave amplification processing on the pre-distortion correction signal, obtain the microwave amplified signal and send it to the post-processing unit; The adaptive frequency control module performs loop correction processing through the following steps: Step 1: The environmental fluctuation monitoring module informs the adaptive frequency control module of the data point of the super-point; Step 2: The adaptive frequency control module obtains the delay processing window corresponding to the post-processing unit, the fixed processing frequency and the correction processing window of the pre-distortion correction processing module, and calculates the number of loop correction processing times; Step 3: The predistortion correction processing module continuously slides out the environmental data from the FIFO queue through the correction processing window, and completes the current predistortion correction processing based on the environmental data; wherein, if the correction processing window contains a super-point, step 4 is executed after the current predistortion correction processing is completed; Step 4: The adaptive frequency control module controls the environment data cache module not to release the environment data taken out of the FIFO queue, and sets the correction processing window offset according to the number of loop correction processing times, and adjusts the correction processing window sliding interception position; Step 5: Determine whether the number of loop correction processing times is zero; if it is zero, release the environment data taken out of the FIFO queue and execute step 6; otherwise, return to execute step 3; Step 6: By superimposing each correction processing window and retaining the part that overlaps with the sliding interception position before adjustment, a high-precision correction processing window is obtained; Step 7: Perform signal synthesis processing on the predistortion correction signals obtained by each predistortion correction process through a high-precision correction processing window to obtain a high-resolution predistortion correction signal; Step 8: Send the high-resolution predistortion correction signal to the microwave amplifier module and perform microwave amplification processing to obtain a high-resolution microwave amplification signal.

2. A microwave amplifier adaptive control system according to claim 1, characterized in that: The environmental fluctuation monitoring module obtains the environmental data corresponding to the first and second data points, and determines whether the change between the two environmental data exceeds the super-point change; if exceeded, the pre-distortion correction signal of the corresponding data point is unreliable, and the first and second data points are marked as super-point points.

3. A microwave amplifier adaptive control system according to claim 2, characterized in that: The superposition change is determined by the following steps: Place the microwave amplifier module in an environmental simulation scenario and set the test input signal and microwave amplification reference signal; Set the test environment data with different changes from low to high, and control the environment simulation scene to follow the changes; The test environment data is input into the pre-distortion correction processing module, and the pre-distortion correction processing module performs pre-distortion correction processing on the test input signal at a fixed processing frequency according to the test environment data to obtain a pre-distortion correction test signal; The microwave amplifier module performs microwave amplification processing on the predistortion correction test signal to obtain a microwave amplification test signal; The microwave amplification test signal and the microwave amplification reference signal are compared. When an error exceeds the allowable range, the change at this time is recorded to obtain the over-position change.

4. The microwave amplifier adaptive control system according to claim 1, characterized in that: Determine the delay processing window as follows: Installing a delay module between the pre-distortion correction processing module and the microwave amplifier module; Determining a correction processing window used by a pre-distortion correction processing module; Under the standard environment, start the pre-distortion correction processing module and the microwave amplifier module, and input the standard input signal. When the output microwave amplification signal reaches a steady state, proceed to the next step. Increase the delay parameters set by the delay module and observe whether the post-processing unit has delay errors; If a delay error occurs, the duration corresponding to the current delay parameter is output as the delay processing window; If no delay error occurs, continue to increase the delay parameter set by the delay module until a delay error occurs in the post-processing unit.

5. The microwave amplifier adaptive control system according to claim 1, characterized in that: The adaptive frequency control module determines the number of loop correction processing times through a high-delay and high-precision control strategy; wherein, the high-delay and high-precision control strategy: the number of loop correction processing times=[delay processing window length / correction processing window length].

6. The microwave amplifier adaptive control system according to claim 1, characterized in that: The adaptive frequency control module determines the number of loop correction processing times through a low-delay and low-precision control strategy: wherein the low-delay and low-precision control strategy: the number of loop correction processing times is amplified from 0 by +1 iteration, and amplified until there is no super-point in the high-precision correction processing window.

7. The microwave amplifier adaptive control system according to claim 1, characterized in that: The environmental fluctuation monitoring module also performs loop correction processing monitoring through the following steps: Through high-precision correction processing window, the data points corresponding to the equivalent fixed processing frequency are obtained; Calculate the high-precision super-position change; where the high-precision super-position change = super-position change / number of loop correction processing times; Obtain the environmental data corresponding to the first and second data points, and determine whether the change between the two environmental data exceeds the high-precision super-position change; If there are any excess data points in the high-precision correction processing window, it is considered that the loop correction has partially failed, and the excess data points are fed back to the post-processing unit.

8. A microwave amplifier adaptive control system according to any one of claim 5 or claim 6, characterized in that: The adaptive frequency control module determines the number of loop correction processing times through a compromise control strategy; wherein the compromise control strategy: obtains the number of loop correction processing times corresponding to the high-delay high-precision control strategy and the low-delay low-precision control strategy, and averages them to obtain the compromised number of loop correction processing times.

9. The microwave amplifier adaptive control system according to claim 1, characterized in that: The sliding interception position of the correction processing window is adjusted by an adaptive sliding variable; wherein, the adaptive sliding variable = (correction processing window length / fixed processing frequency) / (number of loop correction processing times + 1).

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