Phased array radar aging test method and test system

Abstract

The invention discloses a phased array radar burn-in test method and test system, the test method comprises transmitting and receiving channel burn-in test, the transmitting channel burn-in test comprises that under the control of a first test instruction, a radar host outputs power to a load, and the receiving channel burn-in test comprises receiving channel burn-in test; judging whether the phased array radar is in a saturated power electrified aging state or not according to the output power, and if not, increasing the first test instruction; the receiving channel aging test comprises the following steps: under the control of a second test instruction, the radar host outputs a first frequency mixing signal to the power division attenuation module; the power division attenuation module carries out power division and attenuation processing on the first frequency mixing signal and then uploads the first frequency mixing signal to the main control computer through the signal processing system. According to the invention, the test efficiency is improved, and the equipment cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of radar testing technology, and in particular relates to a phased array radar aging test method and test system. Background Technology

[0002] Aging testing is a reliability test widely used in product testing to accelerate the mechanisms leading to early failure. Its purpose is to test the product's operation and performance changes at high temperatures by simulating the high-temperature environment in actual use, thereby guiding manufacturers to evaluate the performance and reliability of the product.

[0003] The aging of phased array radar is usually carried out in a normal room or outdoors. Both indoor and outdoor aging require a relatively long time to achieve the desired effect, which greatly increases the test time and reduces the test efficiency. At the same time, indoor and outdoor aging generally requires the use of instruments (such as network analyzers), which increases equipment costs. Summary of the Invention

[0004] The purpose of this invention is to provide a phased array radar aging test method and test system to solve the problems of long test time and low test efficiency of traditional aging methods, as well as the problem of high test cost due to the need for instruments.

[0005] This invention solves the above-mentioned technical problems through the following technical solution: a phased array radar aging test method, wherein the phased array radar is placed in a high-temperature aging chamber and includes a signal processing system, a radar host, a first polarization switch assembly, and a power attenuation module; the radar host is connected to the signal processing system, the first polarization switch assembly, and the power attenuation module; the first polarization switch assembly is connected to the power attenuation module and a load; the test method includes a transmit channel aging test and a receive channel aging test; the transmit channel aging test includes: Under the first test command issued by the main control computer, the radar host outputs power to the load and feeds back the output power to the main control computer through the signal processing system; the main control computer determines whether the phased array radar is in a saturated power aging state based on the output power. If not, it increases the first test command. The receiver channel aging test includes: Under the second test command issued by the main control computer, the radar host outputs the first mixing signal to the power divider attenuation module; after the power divider attenuation module performs power division and attenuation processing on the first mixing signal, it is uploaded to the main control computer after passing through the first polarization switch component, the radar host and the signal processing system.

[0006] Furthermore, under the first test command issued by the main control computer, the radar host outputs power to the load, specifically including: Inside the radar host, the beam control module generates a first radio frequency signal under the first test command. The intermediate frequency transmission module mixes the first radio frequency signal and the second radio frequency signal output by the frequency synthesis module to obtain a second mixed signal. The power divider module divides the second mixed signal and transmits it to the TR component. The TR component outputs power to the load through the first polarization switch component.

[0007] Furthermore, under the second test command issued by the main control computer, the radar host outputs the first mixing signal to the power attenuation module, specifically including: Inside the radar host, the beam control module generates a third radio frequency signal under the second test command, and the intermediate frequency transmission module mixes the third radio frequency signal with the second radio frequency signal output by the frequency synthesis module to obtain a first mixed signal.

[0008] Furthermore, after the main control computer sends the first test command to the phased array radar, the signal processing system, under the first test command, first controls the phased array radar to stop debugging and put it in a non-transmitting state, then opens the horizontal polarization channel of the first polarization switch component, and then controls the phased array radar to start debugging, and the radar host outputs power to the load. After the main control computer sends the second test command to the phased array radar, the signal processing system first controls the phased array radar to stop debugging and put it in a non-transmitting state under the second test command. Then, it opens the vertical polarization channel of the first polarization switch component, receives the receiving calibration amplitude sent by the radar host, and uploads it to the main control computer.

[0009] Furthermore, during the aging test of the transmission channel, the main control computer also receives status data uploaded by the signal processing system and determines whether the phased array radar is in normal condition based on the status data. If not, the main control computer issues a stop test command to the phased array radar, records the test duration, and issues an abnormality prompt message.

[0010] Furthermore, the test method also includes cyclic aging tests on the transmit and receive channels, specifically including: Step S31: Start the launch channel aging test and record the launch channel aging test time; Step S32: Determine whether the aging test time of the launch channel has reached the first set test time; if yes, proceed to step S33; if no, continue testing and proceed to step S32. Step S33: Start the receiving channel aging test and record the receiving channel aging test time; Step S34: Determine whether the aging test time of the receiving channel has reached the second set test time; if yes, proceed to step S35; if no, continue testing and proceed to step S34. Step S35: Increment the loop count by 1, and determine whether the loop count has reached the preset maximum loop count. If yes, end the test; otherwise, proceed to step S31. The initial value of the loop count is 0.

[0011] Furthermore, the test method also includes cyclic aging tests on the transmit and receive channels, specifically including: Step S41: Start the receiving channel aging test and record the receiving channel aging test time; Step S42: Determine whether the aging test time of the receiving channel has reached the second set test time; if yes, proceed to step S43; if no, continue testing and proceed to step S42. Step S43: Start the launch channel aging test and record the launch channel aging test time; Step S44: Determine whether the aging test time of the launch channel has reached the first set test time; if yes, proceed to step S45; if no, continue testing and proceed to step S44. Step S45: Increment the loop count by 1, and determine whether the loop count has reached the preset maximum loop count. If yes, end the test; otherwise, proceed to step S41. The initial value of the loop count is 0.

[0012] Based on the same concept, the present invention also provides a phased array radar aging test system, including a main control computer, a load and a high temperature aging chamber. The phased array radar is placed in the high temperature aging chamber and includes a signal processing system, a radar host, a first polarization switch assembly and a power attenuation module. The radar host is connected to the signal processing system, the first polarization switch assembly and the power attenuation module. The first polarization switch assembly is connected to the power attenuation module and the load. The main control computer is used to issue the first test command or the second test command to the phased array radar; it determines whether the phased array radar is in a saturated power aging state based on the output power, and increases the first test command when the phased array radar is in a non-saturated power aging state. The radar host is used to output power to the load under the first test command and output a first mixing signal to the power division attenuation module under the second test command; the first mixing signal fed back by the power division attenuation module is processed to obtain the receiving calibration amplitude; the output power and the receiving calibration amplitude are sent to the main control computer through the signal processing system. The power divider and attenuation module is used to perform power division and attenuation processing on the first mixing signal, and then send it to the radar host.

[0013] Furthermore, the radar main unit includes a beam control module, a frequency synthesizer module, an intermediate frequency transmission module, a second polarization switch assembly, a power divider module, a TR assembly, and an AD module; the beam control module and the AD module are respectively connected to the signal processing system; the intermediate frequency transmission module is connected to the frequency synthesizer module, the beam control module, the power divider module, and the second polarization switch assembly; the frequency synthesizer module is connected to the power divider module; the second polarization switch assembly is connected to the power divider attenuation module; and the TR assembly is connected to the power divider module, the AD module, and the first polarization switch assembly.

[0014] Furthermore, the power attenuation module includes one 1-to-4 power divider, four attenuators, and four 1-to-16 power dividers. The input of the 1-to-4 power divider is connected to the radar host, and the four outputs of the 1-to-4 power divider are respectively connected to the inputs of the four attenuators. Each attenuator corresponds to a 1-to-16 power divider, and the output of each attenuator is connected to the first polarization switch assembly through the corresponding 1-to-16 power divider. Alternatively, the power attenuation module includes a 1-to-64 power divider and 64 attenuators. The input of the 1-to-64 power divider is connected to the radar host, the 64 outputs of the 1-to-64 power divider are respectively connected to the inputs of the 64 attenuators, and the outputs of the 64 attenuators are respectively connected to the first polarization switch assembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, based on placing a phased array radar in a high-temperature aging chamber, adjusts the signal strength of the first test command by monitoring the output power of the TR component. This ensures that the phased array radar is in a saturated power charged aging state during the aging test of the transmission channel, enabling performance verification such as power stability and thermal management capabilities. It can quickly expose potential defects, improve reliability verification efficiency, and thus improve testing efficiency. The aging test of this invention only requires the addition of a main control computer, eliminating the need for equipment such as network analyzers, thereby reducing equipment costs. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a block diagram of the phased array radar aging test system in an embodiment of the present invention; Figure 2 This is a flowchart of the aging test process for the launch channel in an embodiment of the present invention; Figure 3This is a signal link diagram for the aging test of the transmission channel in an embodiment of the present invention; Figure 4 This is a flowchart of the receiving channel aging test in an embodiment of the present invention; Figure 5 This is a signal link diagram of the receiving channel aging test in an embodiment of the present invention; Figure 6 This is a flowchart of the first implementation method of the cyclic aging test of the transmitting channel and the receiving channel in this invention. Figure 7 This is a flowchart of the second implementation method of the cyclic aging test of the transmitting channel and the receiving channel in this invention. Figure 8 This is a flowchart of the anomaly monitoring process during the aging test of the launch channel in this embodiment of the invention; Figure 9 This is a flowchart of the anomaly monitoring process during the aging test of the launch channel in this embodiment of the invention; Figure 10 This is a schematic diagram of the radar host structure in an embodiment of the present invention; Figure 11 This is a structural block diagram of the first embodiment of the power division attenuation module in this invention. Figure 12 This is a structural block diagram of the second implementation of the power attenuation module in this invention. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0020] Example 1 Traditional radar aging tests are usually performed outdoors or indoors at room temperature. This method requires a long time to achieve the desired effect, resulting in long test times and low test efficiency. At the same time, traditional radar aging requires the use of instruments, such as network analyzers, which increases the cost of test equipment.

[0021] To address the aforementioned technical problems, the phased array radar aging test method provided by this invention places the phased array radar in a high-temperature aging chamber, reducing test time and improving test efficiency; simultaneously, it eliminates the need for additional instruments, thus reducing test costs. Figure 1 As shown, the phased array radar includes a signal processing system, a radar host, a first polarization switch assembly, and a power attenuation module. The radar host is connected to the signal processing system, the first polarization switch assembly, and the power attenuation module. The first polarization switch assembly is connected to the power attenuation module and the load. The signal processing system communicates with the main control computer. In this embodiment, the temperature of the high-temperature aging chamber is set to 60°C.

[0022] The phased array radar aging test method of this invention includes transmit channel aging test, receive channel aging test, and cyclic aging test of the transmit and receive channels. For example... Figure 2 As shown, the launch channel aging test includes: Step S11: The main control computer sends the first test command to the phased array radar; Step S12: Under the control of the first test command, the radar host outputs power to the load and feeds back the output power to the main control computer through the radar host and the signal processing system; Step S13: The main control computer determines whether the phased array radar is in a saturated power aging state based on the output power. If not, it increases the first test command and proceeds to step S12.

[0023] In a specific embodiment of the present invention, such as Figure 3 As shown, under the control of the first test command, the radar host outputs power to the load, specifically including: The main control computer sends the first test command to the signal processing system, and the signal processing system sends the first test command to the wave control module in the radar host. Inside the radar main unit, the beam control module generates a first radio frequency signal under the first test command, and the intermediate frequency transmission module mixes the first radio frequency signal and the second radio frequency signal output by the frequency synthesis module to obtain a second mixed signal. The power divider module divides the second mixing signal and transmits it to the TR component. The TR component outputs power to the load through the horizontal polarization channel of the first polarization switch component, and the load absorbs the power emitted by the TR component.

[0024] The preamplifier of the TR module has a built-in detector circuit. This circuit monitors the voltage of the TR module and converts it into power data (as shown in Table 1). This power data is then sent to the beam control module, and finally uploaded to the main control computer by the signal processing system. The main control computer compares this power data with a power threshold. If the power data is less than the threshold, it indicates that the phased array radar has not reached the saturated power charging aging state. The first test command is then increased to improve the output power of the TR module. In this embodiment, the power threshold is set to 39 dBm.

[0025] The detection circuit has the advantage of high-speed response, which is usually in the nanosecond to microsecond range. It can capture the voltage of the TR component in real time and realize the rapid control of the output power of the TR component. At the same time, the detection circuit is usually composed of semiconductor diodes and passive components, which are solid-state devices, and therefore have extremely high reliability and lifespan.

[0026] Table 1. Output Power and Voltage Statistics of TR Components

[0027] like Figure 4 As shown, the receiver channel aging test includes: Step S21: The main control computer sends a second test command to the phased array radar; Step S22: Under the control of the second test command, the radar host outputs the first mixing signal to the power division attenuation module; Step S23: After the power divider and attenuation module performs power division and attenuation processing on the first mixer signal, it is uploaded to the main control computer after passing through the first polarization switch component, the radar host and the signal processing system.

[0028] In a specific embodiment of the present invention, such as Figure 5 As shown, under the control of the second test command, the radar host outputs the first mixing signal to the power attenuation module, specifically including: The main control computer sends the second test command to the signal processing system, and the signal processing system sends the second test command to the wave control module in the radar host. Inside the radar host, the beam control module generates a third radio frequency signal under the second test command, and the intermediate frequency transmission module mixes the third radio frequency signal and the second radio frequency signal output by the frequency synthesis module to obtain the first mixed signal. The first mixing signal is transmitted to the power divider / attenuation module via the second polarization switch assembly. After power division and attenuation processing, it is transmitted to the TR assembly via the vertical polarization channel of the first polarization switch assembly. The TR assembly mixes the signal transmitted by the first polarization switch assembly with the signal transmitted by the power divider module (i.e., the fourth RF signal output by the frequency synthesizer module to the power divider module, which then divides the fourth RF signal before transmitting it to the TR assembly) and transmits the signal to the AD module. The AD module performs analog-to-digital conversion on the signal transmitted by the TR assembly to obtain the receive calibration amplitude. The signal processing system then uploads the receive calibration amplitude to the main control computer, which monitors the receive calibration amplitude and saves the data. The receiving channel aging test of this invention adopts an in-machine simulation method.

[0029] like Figure 6 As shown, in one specific embodiment of the present invention, the cyclic aging test of the transmit channel and the receive channel includes: Step S31: Start the launch channel aging test and record the launch channel aging test time; Step S32: Determine whether the aging test time of the launch channel has reached the first set test time; If so, proceed to step S33; If not, continue with the launch channel aging test and record the launch channel aging test time, and proceed to step S32; Step S33: Start the receiving channel aging test and record the receiving channel aging test time; Step S34: Determine whether the aging test time of the receiving channel has reached the second set test time; If so, proceed to step S35; If not, continue with the receiving channel aging test and the receiving channel aging test time, and proceed to step S34; Step S35: Increment the loop count by 1, and determine whether the loop count has reached the preset maximum loop count. If yes, end the test; otherwise, proceed to step S31. The initial value of the loop count is 0.

[0030] like Figure 7 As shown, in another specific embodiment of the present invention, the cyclic aging test of the transmit channel and the receive channel specifically includes: Step S41: Start the receiving channel aging test and record the receiving channel aging test time; Step S42: Determine whether the aging test time of the receiving channel has reached the second set test time; If so, proceed to step S43; If not, continue with the receiving channel aging test and the receiving channel aging test time, and proceed to step S42; Step S43: Start the launch channel aging test and record the launch channel aging test time; Step S44: Determine whether the aging test time of the launch channel has reached the first set test time; If so, proceed to step S45; If not, continue with the launch channel aging test and record the launch channel aging test time, and proceed to step S44; Step S45: Increment the loop count by 1, and determine whether the loop count has reached the preset maximum loop count. If yes, end the test; otherwise, proceed to step S41. The initial value of the loop count is 0.

[0031] In this embodiment, the first set test time is 4 hours, and the second set test time is 1 hour. The first set test time, the second set test time, and the maximum number of cycles can be set according to actual testing needs.

[0032] This invention enables one-click aging tests for the transmit channel, one-click aging tests for the receive channel, or one-click cyclic aging tests for both the transmit and receive channels via a main control computer, greatly reducing the operational process of aging tests for phased array radars.

[0033] The aging time for a product is generally no more than 20% of its lifespan, and the energizing time in the stress screening test is not included in the aging time. The selection of the aging time is related to temperature stress and the product's working environment. According to the standard document QJ 908A-2012 "Aging Test Method for Electronic Products", or the Arrhenius model, the acceleration factor at high temperature can be calculated, and then the high-temperature aging time can be obtained.

[0034] For phased array radar, the environmental adaptability temperature requirement is -40℃ to 60℃. Aging is performed at the maximum temperature of 60℃. Based on the approximate formula for the acceleration factor, the aging time under stress temperature is calculated to be 17 hours. Depending on the product quality, an aging time of 48 hours can be selected for phased array radar.

[0035] During the aging test, the phased array radar status can also be monitored, and the test will automatically stop in case of a fault, ensuring the safety of the aging test. For example... Figure 8 As shown, after the main control computer sends the first test command to the phased array radar, the signal processing system, under the control of the first test command, first controls the phased array radar to stop debugging and put it in a non-transmitting state, then opens the horizontal polarization channel of the first polarization switch component, and then controls the phased array radar to start debugging, and the radar host outputs power to the load.

[0036] During the aging test of the launch channel, the phased array radar is first stopped from debugging, and then the horizontal polarization channel of the first polarization switch assembly is opened. This provides a stable electrical environment for the first polarization switch assembly, avoiding signal conflicts or hardware damage. It also prevents direct polarization switching without stopping debugging, which could lead to parameter drift and affect the accuracy of the aging test. By strictly following the "stop-switch polarization-restart" sequence, the initial state of each launch channel test is ensured to be consistent, facilitating the comparison of aging performance under different polarization modes and ensuring the safety of radar hardware and the reliability of test data during polarization switching.

[0037] like Figure 8 As shown, during the aging test of the launch channel, the main control computer also receives status data uploaded by the signal processing system and determines whether the phased array radar is in normal condition based on the status data. If not, the main control computer issues a stop test command to the phased array radar, records the test duration, and issues an anomaly warning message. Based on the anomaly warning message, the issue can be manually investigated and resolved, and the launch channel aging test can be manually resumed after the anomaly is eliminated.

[0038] like Figure 9 As shown, after the main control computer sends the second test command to the phased array radar, the signal processing system, under the control of the second test command, first controls the phased array radar to stop debugging and put it in a non-transmitting state. Then, it opens the vertical polarization channel of the first polarization switch component, receives the reception calibration amplitude sent by the radar host, and uploads it to the main control computer. In this embodiment, the main control computer acquires the reception calibration amplitude every 5 minutes.

[0039] During the aging test of the receiving channel, the debugging is stopped first, and then the vertical polarization channel of the first polarization switch component is turned on. This prevents the radar from accidentally transmitting signals during polarization switching, avoids high-power radio frequency energy reflection or standing wave damage to the receiving channel, and also avoids cross-polarization interference, ensuring the accuracy and reliability of the aging test of the receiving channel.

[0040] like Figure 9 As shown, during the aging test of the receiving channel, the test can be manually paused and then manually resumed.

[0041] Example 2 like Figure 1 As shown, the phased array radar aging test system provided in this embodiment of the invention includes a main control computer, a load, and a high-temperature aging chamber. The phased array radar is placed in the high-temperature aging chamber and includes a signal processing system, a radar host, a first polarization switch assembly, and a power attenuation module. The radar host is connected to the signal processing system, the first polarization switch assembly, and the power attenuation module. The first polarization switch assembly is connected to the power attenuation module and the load. The signal processing system communicates with the main control computer.

[0042] The main control computer is used to issue the first test command or the second test command to the phased array radar; receive the output power and the received calibration amplitude uploaded by the signal processing system, and determine whether the phased array radar is in a saturated power aging state based on the output power. When the phased array radar is in a non-saturated power aging state, the first test command is increased.

[0043] The signal processing system is used to send the first test command or the second test command to the radar host, receive the output power fed back by the radar host, and upload the output power to the main control computer; it also receives the reception calibration amplitude fed back by the radar host and uploads it to the main control computer.

[0044] The radar host is used to output power to the load under the control of the first test command and feed the output power back to the signal processing system; under the control of the second test command, it outputs the first mixing signal to the power division attenuation module; it receives the first mixing signal after power division and attenuation processing fed back by the power division attenuation module, processes the first mixing signal after power division and attenuation processing to obtain the receiving calibration amplitude, and sends the receiving calibration amplitude to the signal processing system.

[0045] The power divider and attenuation module is used to perform power division and attenuation processing on the first mixed signal, and then send the first mixed signal after power division and attenuation processing to the radar host.

[0046] In a specific embodiment of the present invention, such as Figure 10 As shown, the radar main unit includes a beam control module, a frequency synthesizer module, an intermediate frequency transmission module, a second polarization switch assembly, a power divider module, a TR assembly, and an AD module. The beam control module and AD module are connected to the signal processing system, the intermediate frequency transmission module is connected to the frequency synthesizer module, the beam control module, the power divider module, and the second polarization switch assembly, the frequency synthesizer module is connected to the power divider module, the second polarization switch assembly is connected to the power divider attenuation module, and the TR assembly is connected to the power divider module, the AD module, and the first polarization switch assembly.

[0047] In this embodiment, the TR component, AD module, and first polarization switch component all have 64 channels. Since the TR component includes 16 TR modules, and each TR module has 4 TR channels, the power divider module is a 1 to 16 power divider.

[0048] The power division and attenuation module is used to perform power division and attenuation processing on the first mixing signal. Specifically, there are two implementation methods: In the first implementation method, such as... Figure 11 As shown, the power attenuation module includes one 1-to-4 power divider, four attenuators, and four 1-to-16 power dividers. The input of the 1-to-4 power divider is connected to the radar host, and the four outputs of the 1-to-4 power divider are respectively connected to the inputs of the four attenuators. Each attenuator corresponds to a 1-to-16 power divider, and the output of each attenuator is connected to the first polarization switch assembly through the corresponding 1-to-16 power divider.

[0049] In the second implementation, such as Figure 12 As shown, the power attenuation module includes one 1 to 64 power divider and 64 attenuators. The input of the 1 to 64 power divider is connected to the radar host, the 64 outputs of the 1 to 64 power divider are connected to the inputs of the 64 attenuators, and the outputs of the 64 attenuators are connected to the first polarization switch assembly.

[0050] The first implementation requires only 4 attenuators, saving on attenuators. Therefore, the power division attenuation module of the present invention is preferably implemented in the first embodiment.

[0051] In some specific embodiments of the present invention, the phased array radar aging test system can combine the features of the phased array radar aging test method in Embodiment 1 of the present invention, and vice versa.

[0052] The above description only discloses specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or modifications that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for aging test of phased array radar, characterized in that, The phased array radar is placed in a high-temperature aging chamber and includes a signal processing system, a radar main unit, a first polarization switch assembly, and a power attenuation module. The radar main unit is connected to the signal processing system, the first polarization switch assembly, and the power attenuation module. The first polarization switch assembly is connected to the power attenuation module and a load. The testing method includes a transmit channel aging test and a receive channel aging test. The transmit channel aging test includes: Under the first test command issued by the main control computer, the radar host outputs power to the load and feeds back the output power to the main control computer through the signal processing system; the main control computer determines whether the phased array radar is in a saturated power aging state based on the output power. If not, it increases the first test command. The receiver channel aging test includes: Under the second test command issued by the main control computer, the radar host outputs the first mixing signal to the power divider attenuation module; after the power divider attenuation module performs power division and attenuation processing on the first mixing signal, it is uploaded to the main control computer after passing through the first polarization switch component, the radar host and the signal processing system.

2. The aging test method for phased array radar according to claim 1, characterized in that, Upon receiving the first test command from the main control computer, the radar host outputs power to the load, specifically including: Inside the radar host, the beam control module generates a first radio frequency signal under the first test command. The intermediate frequency transmission module mixes the first radio frequency signal and the second radio frequency signal output by the frequency synthesis module to obtain a second mixed signal. The power divider module divides the second mixed signal and transmits it to the TR component. The TR component outputs power to the load through the first polarization switch component.

3. The aging test method for phased array radar according to claim 1, characterized in that, Under the second test command issued by the main control computer, the radar host outputs the first mixing signal to the power attenuation module, specifically including: Inside the radar host, the beam control module generates a third radio frequency signal under the second test command, and the intermediate frequency transmission module mixes the third radio frequency signal with the second radio frequency signal output by the frequency synthesis module to obtain a first mixed signal.

4. The aging test method for phased array radar according to claim 1, characterized in that, After the main control computer sends the first test command to the phased array radar, the signal processing system first controls the phased array radar to stop debugging and put it in a non-transmitting state under the first test command, then opens the horizontal polarization channel of the first polarization switch component, and then controls the phased array radar to start debugging, and the radar host outputs power to the load. After the main control computer sends the second test command to the phased array radar, the signal processing system first controls the phased array radar to stop debugging and put it in a non-transmitting state under the second test command. Then, it opens the vertical polarization channel of the first polarization switch component, receives the receiving calibration amplitude sent by the radar host, and uploads it to the main control computer.

5. The aging test method for phased array radar according to claim 1, characterized in that, During the aging test of the transmission channel, the main control computer also receives status data uploaded by the signal processing system and determines whether the phased array radar is in normal condition based on the status data. If not, the main control computer issues a stop test command to the phased array radar, records the test duration, and issues an abnormality prompt message.

6. The aging test method for phased array radar according to any one of claims 1 to 5, characterized in that, The test method also includes cyclic aging tests on the transmit and receive channels, specifically including: Step S31: Start the launch channel aging test and record the launch channel aging test time; Step S32: Determine whether the aging test time of the launch channel has reached the first set test time; if yes, proceed to step S33; if no, continue testing and proceed to step S32. Step S33: Start the receiving channel aging test and record the receiving channel aging test time; Step S34: Determine whether the aging test time of the receiving channel has reached the second set test time; if yes, proceed to step S35; if no, continue testing and proceed to step S34. Step S35: Increment the loop count by 1, and determine whether the loop count has reached the preset maximum loop count. If yes, end the test; otherwise, proceed to step S31. The initial value of the loop count is 0.

7. The aging test method for phased array radar according to any one of claims 1 to 5, characterized in that, The test method also includes cyclic aging tests on the transmit and receive channels, specifically including: Step S41: Start the receiving channel aging test and record the receiving channel aging test time; Step S42: Determine whether the aging test time of the receiving channel has reached the second set test time; if yes, proceed to step S43; if no, continue testing and proceed to step S42. Step S43: Start the launch channel aging test and record the launch channel aging test time; Step S44: Determine whether the aging test time of the launch channel has reached the first set test time; if yes, proceed to step S45; if no, continue testing and proceed to step S44. Step S45: Increment the loop count by 1, and determine whether the loop count has reached the preset maximum loop count. If yes, end the test; otherwise, proceed to step S41. The initial value of the loop count is 0.

8. A phased array radar aging test system, characterized in that, The system includes a main control computer, a load, and a high-temperature aging chamber. The phased array radar is placed in the high-temperature aging chamber and includes a signal processing system, a radar host, a first polarization switch assembly, and a power attenuation module. The radar host is connected to the signal processing system, the first polarization switch assembly, and the power attenuation module. The first polarization switch assembly is connected to the power attenuation module and the load. The main control computer is used to issue the first test command or the second test command to the phased array radar; it determines whether the phased array radar is in a saturated power aging state based on the output power, and increases the first test command when the phased array radar is in a non-saturated power aging state. The radar host is used to output power to the load under the first test command and to output the first mixing signal to the power division attenuation module under the second test command. The first mixing signal fed back by the power division attenuation module is processed to obtain the receiving calibration amplitude; the output power and the receiving calibration amplitude are sent to the main control computer through the signal processing system. The power divider and attenuation module is used to perform power division and attenuation processing on the first mixing signal, and then send it to the radar host.

9. The phased array radar aging test system according to claim 8, characterized in that, The radar main unit includes a beam control module, a frequency synthesizer module, an intermediate frequency (IF) transmission module, a second polarization switch assembly, a power divider module, a TR assembly, and an AD module. The beam control module and AD module are respectively connected to the signal processing system. The IF transmission module is connected to the frequency synthesizer module, the beam control module, the power divider module, and the second polarization switch assembly. The frequency synthesizer module is connected to the power divider module. The second polarization switch assembly is connected to the power divider attenuation module. The TR assembly is connected to the power divider module, the AD module, and the first polarization switch assembly.

10. The phased array radar aging test system according to claim 8 or 9, characterized in that, The power attenuation module includes one 1-to-4 power divider, four attenuators, and four 1-to-16 power dividers. The input of the 1-to-4 power divider is connected to the radar host, and the four outputs of the 1-to-4 power divider are respectively connected to the inputs of the four attenuators. Each attenuator corresponds to one 1-to-16 power divider, and the output of each attenuator is connected to the first polarization switch assembly through the corresponding 1-to-16 power divider. Alternatively, the power attenuation module includes a 1-to-64 power divider and 64 attenuators. The input of the 1-to-64 power divider is connected to the radar host, the 64 outputs of the 1-to-64 power divider are respectively connected to the inputs of the 64 attenuators, and the outputs of the 64 attenuators are respectively connected to the first polarization switch assembly.

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