An active phased array radar antenna T / R module intelligent testing method and system

Abstract

The application provides an active phased array radar antenna T / R component intelligent testing method and system, which fully utilizes radar resources in a remote control mode, does not need any external device to realize antenna array element performance testing, adopts multi-frequency point and intelligent partition to test the antenna, improves testing accuracy, greatly improves active phased array antenna T / R component testing efficiency, and solves the technical problem of low active phased array antenna T / R component testing efficiency in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of active phased array antenna testing, in particular to an intelligent testing method and system for T / R components of an active phased array radar antenna. BACKGROUND

[0002] Phased array antennas have more and more market share in military and civilian communication fields due to high reliability, multi-beam shaping, and flexible and fast beam scanning. T / R components are the core of phased array antennas, each channel unit of which has independent signal amplification and phase shift functions, and the performance of the entire radar is directly determined by the quality of the T / R components. For products delivered in large quantities, how to quickly and accurately understand the working state of the T / R components in the field phased array antenna is a problem to be solved. Therefore, a fast and convenient automatic testing method for T / R components of an active phased array radar antenna is needed. SUMMARY

[0003] Therefore, the embodiments of the present application provide an intelligent testing method and system for T / R components of an active phased array radar antenna to solve the technical problem of low testing efficiency of T / R components of an active phased array antenna in the prior art. The method comprises:

[0004] controlling a signal source to work at a single frequency point and controlling a detection antenna to be in a receiving state, and storing a first amplitude difference value, the first amplitude difference value being a difference value of amplitudes of signals received by the detection antenna in a transmitting state and a standby state of T / R components of a plurality of channels of an active phased array radar antenna;

[0005] marking a single channel whose first amplitude difference value does not meet a first preset standard as a first fault channel;

[0006] performing an attenuation operation on the T / R components of the plurality of channels respectively, so that the detection antenna works in a linear region;

[0007] dividing the plurality of channels according to the first amplitude difference values of the plurality of channels to obtain a plurality of partitions;

[0008] extracting a preset number of channels in each partition as first selected channels, obtaining maximum first amplitude difference values of the first selected channels, and taking the maximum first amplitude difference values as first fault judgment standards of the partitions;

[0009] judging whether the first amplitude difference value of the first fault channel is lower than the first fault judgment standard by 5 decibels, and if the first amplitude difference value is lower than the first fault judgment standard by 5 decibels when the signal source is at different frequency points, marking the first fault channel as a transmitting fault channel.

[0010] Further, the intelligent testing method of the T / R component of the active phased array radar antenna further comprises:

[0011] The control signal source is in single-frequency point operation, the detection antenna is in the transmitting state, and a second amplitude difference value is stored, the second amplitude difference value being a difference value of amplitudes of signals transmitted by the detection antenna in the receiving state and the standby state of the T / R component of the plurality of channels of the active phased array radar antenna;

[0012] The single channel that does not meet the second preset standard is marked as a second fault channel;

[0013] The T / R components of the plurality of channels are respectively subjected to attenuation operation, and the input power of the detection antenna is adjusted so that the T / R operates in the linear region;

[0014] The plurality of channels are partitioned according to the second amplitude difference values of the plurality of channels, and a plurality of partitions are obtained;

[0015] 10% to 30% of the channels in each partition are extracted as second selected channels, the maximum second amplitude difference value of each second selected channel is obtained, and the maximum second amplitude difference value is taken as a second fault judgment standard of the partition;

[0016] It is judged whether the second amplitude difference value of the second fault channel is lower than the second fault judgment standard by 5 decibels, and if the second amplitude difference value is lower than the second fault judgment standard by 5 decibels when the signal source is in different frequency points, the second fault channel is marked as a receiving fault channel.

[0017] Further, when the plurality of channels are partitioned according to the first amplitude difference values of the plurality of channels, the maximum value and the minimum value of the first amplitude difference values of the plurality of channels except the marked first fault channels are obtained, a first difference interval is divided between the maximum value and the minimum value of the first amplitude difference values according to a difference value of 5 decibels, and the plurality of channels are partitioned according to the first difference interval.

[0018] Further, when the plurality of channels are partitioned according to the second amplitude difference values of the plurality of channels, the maximum value and the minimum value of the second amplitude difference values of the plurality of channels except the marked second fault channels are obtained, a second difference interval is divided between the maximum value and the minimum value of the second amplitude difference values according to a difference value of 5 decibels, and the plurality of channels are partitioned according to the second difference interval.

[0019] Further, when 10% to 30% of the channels in each partition are extracted as first selected channels, the marked first fault channels are not taken as the first selected channels.

[0020] Further, 10% to 30% of the channels in each partition are extracted as second selected channels, and the marked second fault channels are not used as the second selected channels.

[0021] Further, the transmitting fault channel and the receiving fault channel are reported as performance test results.

[0022] The embodiment of the present application also provides an active phased array radar antenna T / R component intelligent test system to solve the technical problem of low test efficiency of the active phased array antenna T / R component in the prior art.

[0023] The difference acquisition module is configured to control the signal source to operate at a single frequency point, control the detection antenna to be in a receiving state, and store a first amplitude difference value, the first amplitude difference value being a difference value of amplitudes of signals received by the detection antenna in the transmitting state and the standby state of the T / R components of the plurality of channels of the active phased array radar antenna.

[0024] The fault marking module is configured to mark a single channel whose first amplitude difference value does not satisfy the first preset standard as a first fault channel.

[0025] The attenuation module is configured to perform an attenuation operation on the T / R components of the plurality of channels respectively, so that the detection antenna operates in a linear region.

[0026] The partition module is configured to partition the plurality of channels according to the first amplitude difference values of the plurality of channels, and obtain a plurality of partitions.

[0027] The sample extraction module is configured to extract 10% to 30% of the channels in each partition as first selected channels, obtain a maximum first amplitude difference value of each first selected channel, and use the maximum first amplitude difference value as a first fault judgment standard of the partition.

[0028] The fault confirmation module is configured to judge whether the first amplitude difference value of the first fault channel is lower than the first fault judgment standard by 5 decibels, and if the first amplitude difference value is lower than the first fault judgment standard by 5 decibels when the signal source is at different frequency points, mark the first fault channel as a transmitting fault channel.

[0029] Compared with the prior art, the at least one technical scheme adopted by the embodiment of the present specification can achieve the beneficial effects at least including that the present invention proposes an intelligent testing method for T / R components of an active phased array radar antenna, completely utilizes the resources of the radar itself through remote control, and does not need to use any external device to realize the performance testing of the antenna array elements, thereby reducing the work difficulty of the testing personnel and greatly improving the field support efficiency; the method of multiple frequency points and intelligent partitioning is adopted, thereby improving the testing accuracy and greatly improving the testing efficiency of the T / R components of the active phased array antenna. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0031] Figure 1 is a schematic diagram of the antenna array element transmission performance test processing flow provided by the embodiment of the present application;

[0032] Figure 2 is a schematic diagram of the antenna array element reception performance test processing flow provided by the embodiment of the present application;

[0033] Figure 3 is a schematic diagram of the active phased array radar antenna and the detection antenna provided by the embodiment of the present application;

[0034] Figure 4 is a schematic diagram of the active phased array radar antenna T / R component intelligent testing system provided by the embodiment of the present application.

[0035] In the figure, the reference signs are: 400, system; 401, difference acquisition module; 402, fault marking module; 403, attenuation module; 404, partitioning module; 405, sample extraction module; 406, fault confirmation module. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with reference to the drawings.

[0037] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In this embodiment of the invention, an intelligent testing method for the T / R assembly of an active phased array radar antenna is provided, such as... Figure 1 As shown, the method includes: Step S100: controlling the signal source to operate at a single frequency point, controlling the detection antenna to be in a receiving state, and storing a first amplitude difference value, wherein the first amplitude difference value is the difference in the amplitude of the signal received by the detection antenna in the transmitting state and the standby state of the T / R components of multiple channels of the active phased array radar antenna; Step S200: marking a single channel whose first amplitude difference value does not meet a first preset standard as a first fault channel; Step S300: performing attenuation operation on the T / R components of the multiple channels respectively, so that the detection antenna operates in the linear region; Step S400: according to the values ​​of the multiple channels... The first amplitude difference is used to partition the multiple channels to obtain multiple partitions; Step S500: A preset number of channels in each partition are extracted as first selected channels, and the maximum first amplitude difference of each first selected channel is obtained. The maximum first amplitude difference is used as the first fault judgment standard of the partition; Step S600: It is determined whether the first amplitude difference of the first fault channel is lower than 5 dB of the first fault judgment standard. If the first amplitude difference is lower than 5 dB of the first fault judgment standard when the signal source is at different frequency points, the first fault channel is marked as a transmission fault channel.

[0039] This invention proposes an intelligent testing method for active phased array radar antenna T / R components. It fully utilizes the radar's own resources through programmable control, eliminating the need for any external equipment to test antenna array element performance. This reduces the workload for testing personnel and greatly improves field support efficiency. Furthermore, the adoption of multi-frequency and intelligent partitioning methods enhances testing accuracy and significantly improves the testing efficiency of active phased array antenna T / R components.

[0040] Depend on Figure 1 As shown in the flowchart, the first embodiment of the present invention specifically includes the following steps:

[0041] Step S100: Control the signal source to operate at a single frequency point, control the detection antenna to be in the receiving state, and store the first amplitude difference value. The first amplitude difference value is the difference in the amplitude of the signal received by the detection antenna in the transmitting state and the standby state of the T / R components of multiple channels of the active phased array radar antenna.

[0042] Step S200: Mark the single channel whose first amplitude difference does not meet the first preset standard as the first fault channel;

[0043] Specifically, the schematic diagram of the active phased array radar antenna and the detection antenna is as follows: Figure 3 As shown. First, the signal source is controlled to operate at a single frequency point, and detection is performed only on a single frequency point a. Each T / R component channel of the active phased array radar antenna is controlled to enter the transmit state and standby state respectively at the test frequency point. The detection antenna is controlled to enter the receive state. The signal amplitude difference between the two states received by the protection antenna in the working state and standby state of different T / R component channels is stored, that is, the first amplitude difference. Based on the principle that the power difference of adjacent T / R component channels is similar due to their similar coupling, the channel whose signal amplitude difference does not meet the first preset standard is temporarily marked as a transmission fault channel. The first preset standard is that the first amplitude difference of the current channel should not be less than the maximum value of the first amplitude difference of the five closest channels by more than 5 dB. If the signal amplitude difference of the test T / R component channel is less than the signal amplitude difference of the adjacent T / R component channels by more than 5 dB, the test T / R component channel is temporarily marked as the first fault channel, and the fault is further confirmed in subsequent tests.

[0044] Step S300: Perform attenuation operation on the T / R components of the multiple channels respectively, so that the detection antenna operates in the linear region;

[0045] Specifically, because the T / R component itself has a large radiated peak power, the input 1 dB compression point power of the test T / R component channel is low. Therefore, the detection antenna is very prone to saturation, affecting the fault channel detection rate. Thus, it is necessary to perform attenuation on the T / R component to make the detection antenna operate in the linear region. Specifically, for the first fault channel marked in step S200, the maximum value of the attenuation values ​​of the five channels closest to the current first fault channel in a straight line is obtained, and this maximum value is assigned to the first fault channel as its attenuation value.

[0046] Step S400: Divide the multiple channels into multiple partitions according to the first amplitude difference of each of the multiple channels to obtain multiple partitions;

[0047] In specific implementation, after the attenuation operation is performed on the T / R components of the plurality of channels respectively, the first amplitude difference value of each channel is reacquired, the maximum value and the minimum value of the first amplitude difference value of each channel of the plurality of channels except the marked first fault channel are obtained, a first difference interval is divided according to a 5-dB difference between the maximum value and the minimum value of the first amplitude difference value, the plurality of channels are partitioned according to the first difference interval, and the channels with the first amplitude difference value belonging to the same interval are partitioned into the same partition. For each first fault channel, the partition in which the first five channels closest to the current first fault channel in straight-line distance in the antenna are located is acquired, and the current first fault channel is partitioned into the partition with the largest proportion of the five channels.

[0048] Step S500: Extract a preset number of channels in each partition as first selected channels respectively, acquire the maximum first amplitude difference value of each first selected channel, and take the maximum first amplitude difference value as a first fault judgment standard of the partition.

[0049] In specific implementation, when 10% to 30% of the channels in each partition are extracted as the first selected channels respectively, the marked first fault channel is not taken as the first selected channel.

[0050] Step S600: Determine whether the first amplitude difference value of the first fault channel is lower than the first fault judgment standard by 5 dB. If the first amplitude difference value is lower than the first fault judgment standard by 5 dB when the signal source is at different frequency points, the first fault channel is marked as a transmission fault channel.

[0051] Specifically, after the attenuation amount of each T / R component channel is determined, intelligent partitioning is performed according to the amplitude difference value of each channel at a single frequency point, and 5 dB of the amplitude difference value is a partition. 10% to 30% of the channels in each partition are extracted as partition samples for sampling at other frequency points, wherein the channel data marked as the first fault channel is excluded when the channels are extracted, and the maximum value of the amplitude difference value of the detected antenna in the transmission state and the standby state of each extracted channel is taken as the judgment standard of each frequency point in the partition. It is determined whether the first amplitude difference value of the first fault channel in each partition is lower than the first fault judgment standard by 5 dB. By sampling the marked first fault channel at other frequency points, if the amplitude difference value of all frequency points of the first fault channel is lower than the maximum amplitude value standard of the zone by 5 dB, the first fault channel is finally determined as a transmission channel fault. The embodiments of the present application improve the test accuracy by adopting the method of multi-frequency point and intelligent partitioning.

[0052] Further, as shown in Figure 2 the present embodiment further comprises:

[0053] Step S700: the step control signal source is in single frequency point operation, the detection antenna is in the transmitting state, and the second amplitude difference value is stored, the second amplitude difference value being a difference value of amplitudes of signals transmitted by the detection antenna in the receiving state and the standby state of the T / R components of the multiple channels of the active phased array radar antenna;

[0054] Step S800: marking a single channel whose second amplitude difference value does not meet the second preset standard as a second fault channel;

[0055] Specifically, when the receiving performance of the antenna is tested, the detection antenna radiates signals outward, each T / R component channel corresponding to a receiving element respectively enters the receiving state and the standby state at a single test frequency point, and the principle that the coupling degrees of adjacent T / R component channels are similar and the amplitude difference values thereof are also similar is used. The channel whose receiving amplitude difference does not meet the second preset standard is temporarily marked as a receiving fault channel. The second preset standard is that the second amplitude difference value of the current channel should be higher than the maximum value of the second amplitude difference values of the five channels closest to the current channel by 5 decibels or more. If the signal amplitude difference value of the tested T / R component channel is lower than the signal amplitude difference value of the adjacent T / R component channel by 5 decibels, the tested T / R component channel is temporarily marked as a second fault channel, and the fault is further confirmed in subsequent tests.

[0056] Step S900: performing attenuation operations on the T / R components of the multiple channels respectively, and adjusting the input power of the detection antenna so that the T / R works in the linear region;

[0057] Specifically, because the gain of the detection antenna is high and the 1 decibel compression point input power of the T / R component is low, it is necessary to dynamically adjust the input power of the detection antenna and the attenuation value of the T / R component so that the component receiving channel works in the linear region. The second fault channel marked by step S800 obtains the maximum value of the attenuation values of the five channels closest to the current second fault channel in the antenna, and assigns the maximum value to the second fault channel as the attenuation value of the second fault channel.

[0058] Step S1000: partitioning the multiple channels according to the second amplitude difference values of the multiple channels to obtain multiple partitions;

[0059] Specifically, after the attenuation operation is performed on the T / R components of the plurality of channels respectively, a second amplitude difference value is reacquired, the maximum value and the minimum value of each second amplitude difference value of the plurality of channels except the marked second fault channel are obtained, a second difference interval is divided according to a 5-dB difference between the maximum value and the minimum value of the second amplitude difference value, and the plurality of channels are partitioned according to the second difference interval. For each second fault channel, the partition in which the first 5 channels closest to the current second fault channel in a straight line in the antenna are located is obtained, and the current second fault channel is divided into the partition with the largest proportion of the 5 channels.

[0060] Step S1100: 10% to 30% of the channels in each partition are extracted as second selected channels respectively, the maximum second amplitude difference value of each second selected channel is obtained, and the maximum second amplitude difference value is taken as a second fault judgment standard of the partition.

[0061] Specifically, when 10% to 30% of the channels in each partition are extracted as second selected channels respectively, the marked second fault channel is not taken as the second selected channel.

[0062] Step S1200: It is judged whether the second amplitude difference value of the second fault channel is lower than the second fault judgment standard by 5 dB. If the second amplitude difference value is lower than the second fault judgment standard by 5 dB when the signal source is at different frequency points, the second fault channel is marked as a receiving fault channel.

[0063] Specifically, the transmitting fault channel and the receiving fault channel are taken as performance test results for reporting.

[0064] Specifically, after the phased array antenna radiation power and the T / R component attenuation value are determined, the entire antenna array is intelligently partitioned according to the test value of a single frequency point a, 5 dB of the amplitude difference is a zone, 10% to 30% of the channels in each partition are extracted as partition samples for sampling at other frequency points, and the maximum value of the amplitude difference value of the 10% to 30% channels in the standby state is taken as the standard of this frequency point in this zone. The second fault channel marked in step S800 is sampled at other frequency points. If the amplitude difference value of the second fault channel at all frequency points is lower than the maximum amplitude difference value in the zone by 5 dB, the second fault channel is finally determined as a receiving fault channel. After the transmitting fault channel and the receiving fault channel are tested, the performance test results of the antenna array elements are reported through a control interface. In this embodiment, the test of the active phased array radar antenna array elements can be completed through remote control, which reduces the work difficulty of the test personnel, greatly improves the field support efficiency, and improves the antenna array element test efficiency.

[0065] In another embodiment, the application proposes a specific implementation step of an active phased array radar antenna T / R module intelligent test method as follows:

[0066] 1) The radar antenna array is divided into a protection antenna, a detection antenna and a main antenna, and the antenna element test is mainly aimed at the T / R module corresponding to each array element constituting the main antenna. Assuming that the number of radar radiating antenna elements is k, k∈[1, N], the number of fault elements is g, g∈[0, N], the fault element position is (p, q), and the test frequency points are [a, b, c, d].

[0067] 2) The antenna element transmission performance test processing flow is as shown in Figure 1 , control each element to enter the transmission state and standby state in turn at frequency point a (the remaining elements are always in standby state), and receive through the protection antenna. The power difference between the transmission state and the standby state of different elements is ΔP m , then attenuate the module (not including the element marked as a fault channel) to ensure that the module works in the linear region.

[0068] 3) Control the element marked as a fault channel (a total of N elements) to enter the transmission state and standby state in turn at frequency points b, c and d, and store the power difference ΔP k between the transmission state and the standby state of different elements. Compare the transmission power difference of each element at different frequency points with the standard value. If ΔP k <σ i at each frequency point, mark the element as a failure element and store the element position information.

[0069] 4) The antenna element reception performance test processing flow is as shown in Figure 2 , the BIT (detection) antenna radiates signals outward, and control each element to enter the receiving state and standby state in turn at frequency point a (the remaining elements are always in standby state). The power difference between the receiving state and the standby state of different elements is ΔP m , then dynamically adjust the input power of the detection antenna and the attenuation of the module (not including the element marked as a fault channel) to ensure that the module works in the linear region.

[0070] 5) Control the element marked as a fault channel (a total of N elements) to enter the receiving state and standby state in turn at frequency points b, c and d, and store the power difference ΔP k between the receiving state and the standby state of different elements. Compare the transmission power difference of each element at different frequency points with the standard value. If ΔP k <σ i at each frequency point, mark the element as a failure element and store the element position information.

[0071] 6) The automatic test method of the antenna array elements is programmed, and after the automatic test is completed, the number and location of the transmitting performance failure and receiving performance failure elements are reported, and the display interface is used to distinguish the element failure types by different colors.

[0072] 7) The above-mentioned automatic test method of the antenna array elements has been tested in a laboratory environment and multiple fields, and the test result accuracy is more than 95%.

[0073] Based on the same inventive concept, an active phased array radar antenna T / R component intelligent test system is also provided in the embodiments of the present application, as described in the following embodiments. Since the principle of solving problems of the active phased array radar antenna T / R component intelligent test system is similar to that of the active phased array radar antenna T / R component intelligent test method, the implementation of the active phased array radar antenna T / R component intelligent test system can be referred to the implementation of the active phased array radar antenna T / R component intelligent test method, and the repeated parts will not be described herein. The term "unit" or "module" used below can be a combination of software and / or hardware that can realize a predetermined function. Although the system described in the following embodiments is preferably realized by software, the realization of hardware or a combination of software and hardware is also possible and conceived.

[0074] As Figure 4As shown, it is a structural block diagram of an active phased array radar antenna T / R component intelligent test system 400 of an embodiment of the application, comprising: a difference acquisition module 401, the difference acquisition module 401 is used for controlling the signal source to be in single frequency point operation, controlling the detection antenna to be in the receiving state, storing the first amplitude difference, and the first amplitude difference is the difference between the amplitude of the signal received by the detection antenna in the transmitting state and the standby state of the T / R component of the plurality of channels of the active phased array radar antenna; a fault marking module 402, the fault marking module 402 is used for marking a single channel whose first amplitude difference does not meet the first preset standard as a first fault channel; an attenuation module 403, the attenuation module 403 is used for respectively performing attenuation operation on the T / R component of the plurality of channels, so that the detection antenna works in the linear region; a partition module 404, the partition module 404 is used for partitioning the plurality of channels according to each first amplitude difference of the plurality of channels to obtain a plurality of partitions; a sample extraction module 405, the sample extraction module 405 is used for extracting 10% to 30% of the channels in each partition as a first selected channel, obtaining the maximum first amplitude difference of each first selected channel, and taking the maximum first amplitude difference as the first fault judgment standard of the partition; a fault confirmation module 406, the fault confirmation module 406 is used for judging whether the first amplitude difference of the first fault channel is lower than the first fault judgment standard by 5 decibels, and if the first amplitude difference is lower than the first fault judgment standard by 5 decibels when the signal source is in different frequency points, marking the first fault channel as a transmitting fault channel.

[0075] The embodiment of the application achieves the following technical effects:

[0076] 1. The active phased array radar antenna element artificial test method needs to carry a large number of instruments and equipment, the method proposed in the application completely utilizes the resources of the radar itself through process control, does not need to borrow any external equipment to realize the antenna element performance test, reduces the work difficulty of the test personnel, and greatly improves the field support efficiency;

[0077] 2. The active phased array radar antenna element is often thousands, and the artificial test method needs about 1 hour to complete the receiving and transmitting test of the antenna element once, the test method proposed in the application is related to the number of fault elements, and the longest time is 5 minutes, which greatly improves the antenna element test efficiency;

[0078] 3. The application adopts a multi-frequency point and intelligent partitioning method, therefore, the test accuracy is very high, and the coincidence rate with the artificial test method is more than 95%.

[0079] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A smart testing method for the T / R assembly of an active phased array radar antenna, characterized in that, include: The control signal source operates at a single frequency point, the control detection antenna is in the receiving state, and the first amplitude difference is stored. The first amplitude difference is the difference in the amplitude of the signal received by the detection antenna in the transmitting state and the standby state of the T / R components of multiple channels of the active phased array radar antenna. The single channel whose first amplitude difference does not meet the first preset standard is marked as the first fault channel; Attenuation operations are performed on the T / R components of the multiple channels respectively, so that the detection antenna operates in the linear region; The multiple channels are partitioned according to the first amplitude difference of each channel to obtain multiple partitions; A preset number of channels in each partition are extracted as the first selected channels, and the maximum first amplitude difference of each first selected channel is obtained. The maximum first amplitude difference is used as the first fault judgment criterion for that partition. Determine whether the first amplitude difference of the first fault channel is lower than the first fault judgment standard by 5 dB. If the first amplitude difference is lower than the first fault judgment standard by 5 dB when the signal source is at different frequency points, mark the first fault channel as a transmission fault channel.

2. The intelligent testing method for the T / R assembly of an active phased array radar antenna according to claim 1, characterized in that, include: The control signal source operates at a single frequency point, the control detection antenna is in the transmitting state, and the second amplitude difference is stored. The second amplitude difference is the difference in the amplitude of the signal transmitted by the detection antenna in the receiving state and the standby state of the T / R components of multiple channels of the active phased array radar antenna. A single channel whose second amplitude difference does not meet the second preset standard is marked as a second fault channel; Attenuation operations are performed on the T / R components of the multiple channels respectively, and the T / R is made to operate in the linear region by adjusting the input power of the detection antenna; The multiple channels are partitioned according to the second amplitude difference of each channel to obtain multiple partitions; 10% to 30% of the channels in each partition are selected as the second selection channels, and the maximum second amplitude difference of each second selection channel is obtained. The maximum second amplitude difference is used as the second fault judgment criterion for that partition. Determine whether the second amplitude difference of the second fault channel is lower than the second fault judgment standard of 5 dB. If the second amplitude difference is lower than the second fault judgment standard of 5 dB when the signal source is at different frequency points, mark the second fault channel as a receiving fault channel.

3. The intelligent testing method for the T / R assembly of an active phased array radar antenna according to claim 1, characterized in that, The plurality of channels are partitioned according to the first amplitude difference of each of the plurality of channels, including: The maximum and minimum values ​​of the first amplitude differences of the plurality of channels other than the marked first fault channel are obtained. The first difference interval is divided between the maximum and minimum values ​​of the first amplitude differences according to the difference of 5 dB. The plurality of channels are partitioned according to the first difference interval.

4. The intelligent testing method for the T / R assembly of an active phased array radar antenna according to claim 2, characterized in that, Partitioning the multiple channels based on the second amplitude difference of each of the multiple channels includes: The maximum and minimum values ​​of the second amplitude differences of each of the plurality of channels other than the marked second fault channel are obtained. The second difference interval is divided between the maximum and minimum values ​​of the second amplitude differences by a difference of 5 dB. The plurality of channels are partitioned according to the second difference interval.

5. The intelligent testing method for the T / R assembly of an active phased array radar antenna according to claim 1, characterized in that, When 10% to 30% of the channels in each partition are selected as the first selected channels, the first faulty channel that has been marked is not selected as the first selected channel.

6. The intelligent testing method for the T / R assembly of an active phased array radar antenna according to claim 2, characterized in that, When 10% to 30% of the channels in each partition are selected as the second selection channels, the marked second fault channels are not selected as the second selection channels.

7. The intelligent testing method for the T / R assembly of an active phased array radar antenna according to claim 1 or 2, characterized in that, The transmission failure channel and the reception failure channel will be reported as performance test results.

8. An intelligent testing system for the T / R assembly of an active phased array radar antenna, characterized in that, include: The difference acquisition module is used to control the signal source to work at a single frequency point, control the detection antenna to be in the receiving state, and store the first amplitude difference value. The first amplitude difference value is the difference in the amplitude of the signal received by the detection antenna of the T / R components of multiple channels of the active phased array radar antenna in the transmitting state and the standby state. The fault marking module is used to mark a single channel whose first amplitude difference does not meet the first preset standard as a first fault channel; An attenuation module is used to perform attenuation operations on the T / R components of the multiple channels respectively, so that the detection antenna operates in the linear region; A partitioning module is used to partition the multiple channels according to the first amplitude difference of each of the multiple channels to obtain multiple partitions; The sample extraction module is used to extract 10% to 30% of the channels in each partition as the first selected channels, obtain the maximum first amplitude difference of each first selected channel, and use the maximum first amplitude difference as the first fault judgment criterion of the partition. The fault confirmation module is used to determine whether the first amplitude difference of the first fault channel is lower than the first fault judgment standard of 5 dB. If the first amplitude difference is lower than the first fault judgment standard of 5 dB when the signal source is at different frequency points, the first fault channel is marked as a transmission fault channel.

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