A method and system for gold calibration testing of phased array antennas based on internal monitoring system
By generating a gold calibration file through an internal monitoring system and using inductive field, near field, or mid field testing methods, the problem of performance degradation of phased array antennas during use was solved, achieving rapid recalibration without additional hardware.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING RES INST OF ELECTRONICS TECH
- Filing Date
- 2024-12-24
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies make it difficult to achieve high-precision active channel recalibration in the actual use of phased array antennas, especially under conditions of environmental changes, device aging or damage, which leads to performance degradation.
The internal monitoring system generates a gold calibration file, and the compensation file is obtained by using inductive field, near field or mid field test methods. Combined with the raw data of the internal monitoring system, the gold file is generated and stored inside the phased array antenna for recalibration after leaving the factory.
It enables rapid recalibration of phased array antennas after leaving the factory without the need for additional hardware, improving performance degradation caused by long-term operation, environmental changes, or device failure.
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Figure CN119743215B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of microwave antennas, and in particular relates to a method and system for gold calibration testing of phased array antennas based on an internal monitoring system. Background Technology
[0002] Phased array antennas have always been a research hotspot in various fields of microwave technology. A typical phased array antenna mainly consists of antenna elements, an RF module, a power supply, beam control, and a comprehensive network. To enable beam scanning, the RF module includes gain control and phase control for both transmission and reception. Compared to traditional single antennas (such as reflector antennas), phased array antennas can achieve fast and flexible beam scanning by controlling the feed phase of each antenna element. They are widely used in military radar, weather radar, mobile communication base station antennas, automotive collision avoidance radar, and satellite communication antennas.
[0003] To achieve superior telecommunications performance, phased array antennas require transmit and receive calibration of each active channel at the factory. The purpose of calibration is to ensure that the amplitude and phase errors of each active channel are consistent, thereby maximizing the beam focusing and scanning performance of the phased array antenna. However, with the increasing prevalence of phased array antennas, a problem has arisen: although calibrated at the factory, inconsistencies can reappear between active channels during actual use due to environmental changes, component aging, or component damage, leading to performance degradation. Therefore, achieving high-precision recalibration of delivered phased array antennas in the field, relying solely on the antenna's hardware, presents a new and significant challenge.
[0004] Patent publication number CN112511187A, entitled "A Real-time Phase Monitoring Method and System for Array Antennas," describes a method and system for real-time phase monitoring of array antennas. This method uses a control module to control a signal generator to emit detection signals outside the antenna's operating frequency band to detect phase information during antenna operation. During detection, a filter suppresses signals from the operating frequency band to prevent their influence on the detection process. Phase changes are detected using signals outside the operating frequency band, and the detection process does not affect the normal operation of the array antenna. The actual phase change is monitored by comparing the actual phase difference with the standard phase difference, eliminating other irrelevant variables. While this method can achieve phase monitoring of the antenna, it only monitors phase information, and the numerous hardware devices between the RF port and the array antenna cause RF losses, affecting system performance.
[0005] To address the shortcomings of the existing technologies, there is an urgent need for an effective method to recalibrate the amplitude and phase of the active channel after the phased array antenna is delivered, in order to improve the performance degradation of the phased array antenna caused by long-term operation, environmental changes, and replacement of faulty active channel components. Summary of the Invention
[0006] To address the aforementioned problems, this invention proposes a gold calibration test method for phased array antennas based on an internal monitoring system, comprising the following steps:
[0007] 1) Obtain the compensation file D of the active channel of the phased array antenna using one of the following testing methods: inductive field, near field, or mid field. 补 ;
[0008] 2) Under the condition of uncompensated phased array antenna, the raw data file A of internal monitoring is obtained through the internal monitoring system. 原 ;
[0009] 3) Create the gold standard file C=D 补 +A 原 It is placed inside the local file of phased array antenna compensation parameters;
[0010] 4) When the performance of the phased array antenna degrades, the active channel is monitored using the internal monitoring system to obtain a compensated file A of the original data obtained by the internal monitoring system under the condition of uncompensated phased array antenna. 补 Calculate A 补 +C to obtain the new phased array antenna active channel compensation file.
[0011] Furthermore, the compensation file D for the active channel of the phased array antenna was obtained through mid-field testing. 补 The specific steps are as follows:
[0012] The midfield test yielded the raw data file D. 原 ;
[0013] Calculate the mid-range difference C1;
[0014] Calculate D 补 =-(D 原 -C1).
[0015] Furthermore, the specific method for calculating the mid-range distance difference C1 is as follows:
[0016] Establish a coordinate plane for the phased array antenna element arrangement, with the center of the array surface as point (0,0). Each antenna element has a coordinate point A in this coordinate plane, with coordinates (x, y). During field calibration, the projection coordinates of the external monitoring antenna point C to the plane where the array surface is located are point B, with coordinates (x0, y0). The distance between point B and point C, i.e., the projected vertical distance of the external monitoring antenna, is z0. The values of x0, y0, and z0 are given after calibration. AC is obtained through the following formula:
[0017]
[0018]
[0019] Where f is the frequency, in MHz; λ is the wavelength.
[0020] Furthermore, the mid-field test specifically involves: testing the phased array antenna in a microwave anechoic chamber, setting up a test probe in front of the phased array antenna under test within a mid-field distance range, and completing the initial amplitude and phase data acquisition of the active channel of the phased array antenna under test.
[0021] Furthermore, the compensation file D of the active channel of the phased array antenna is obtained through inductive field testing. 补 The specific steps are as follows:
[0022] Using a suitable inductive field measurement system, adjust the distance between the probe and the phased array antenna aperture to obtain the raw test data D of the inductive field. 原 ;D 补 =-D 原 .
[0023] Furthermore, the inductive field measurement system specifically comprises: a phased array antenna being tested in a microwave anechoic chamber equipped with a planar near-field scanning frame; the scanning surface of the test probe on the scanning frame being planar; and the distance between the test probe and the phased array antenna being no greater than [missing information]. , λ is the wavelength.
[0024] Furthermore, the compensation file D of the active channel of the phased array antenna is obtained through near-field testing. 补 The specific steps are as follows:
[0025] Using a suitable near-field measurement system, adjust the distance between the probe and the phased array antenna aperture to obtain the raw test data D of the induced field. 原 ;D 补 =-D 原 .
[0026] Furthermore, the near-field measurement system specifically comprises: testing the phased array antenna in a microwave anechoic chamber equipped with a planar near-field scanning frame; the scanning surface of the test probe on the scanning frame is planar; and the distance between the test probe and the phased array antenna is not less than [missing information]. and not greater than , Where λ is the wavelength and D is the aperture length of the phased array antenna.
[0027] Furthermore, the compensation files and gold files in steps 1) and 3) are delivered with the phased array antenna at the factory.
[0028] A phased array antenna gold calibration test system based on an internal monitoring system is also provided, comprising: at least one processor; and a memory communicatively connected to at least one of the processors; wherein the memory stores instructions executable by the processor, the instructions being executed by the processor to implement the above-described phased array antenna gold calibration test method based on an internal monitoring system.
[0029] Compared with the prior art, the present invention has the following advantages:
[0030] 1) The gold file is obtained through the built-in internal monitoring system without the need for additional auxiliary hardware.
[0031] 2) The gold standard can be obtained through simple mathematical relationships, without increasing the workload of testing;
[0032] 3) It can achieve rapid recalibration of phased array antennas after they leave the factory. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the antenna radiation field area according to an embodiment of the present invention.
[0034] Figure 2 This is a schematic diagram of the near-field region / near-field region test according to an embodiment of the present invention.
[0035] Figure 3 This is a schematic diagram of a midfield test according to an embodiment of the present invention.
[0036] Figure 4 This is a typical internal monitoring (transmit internal monitoring) of a phased array antenna in an embodiment of the present invention.
[0037] Figure 5 This is a typical internal monitoring (receiver internal monitoring) of a phased array antenna in an embodiment of the present invention.
[0038] Figure 6 This is a specific embodiment of the gold file (midfield test method) of the present invention.
[0039] Figure 7 This invention illustrates the recalibration effect of a phased array antenna using a gold standard file, as described in an embodiment of the present invention. Detailed Implementation
[0040] This invention provides a gold calibration test method for phased array antennas based on an internal monitoring system. It mainly utilizes the internal monitoring system built into the phased array antenna to generate a set of gold calibration files simultaneously with the calibration files generated during factory testing. After leaving the factory, the internal monitoring system is used again to perform gold calibration on the active channels of the phased array antenna, regenerating new calibration files that meet the accuracy requirements. This achieves amplitude and phase recalibration between the active channels of the phased array antenna in the working environment, improving the performance degradation caused by long-term operation, environmental changes, and replacement of faulty active channel components.
[0041] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.
[0043] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
[0044] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0045] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.
[0046] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that terms such as “comprising / including” or “having” specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.
[0047] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0048] The phased array antenna calibration test method based on the internal monitoring system provided in this embodiment has the following test principle:
[0049] (1) Method for obtaining phased array antenna calibration data
[0050] like Figure 1 As shown, the radiation field of an antenna can be divided into the following categories: inductive near-field region, near-field region, mid-field region, and far-field region. The calibration and testing methods for phased array antennas are usually divided into the following types according to the different radiation field regions: inductive near-field test calibration, near-field region test calibration, and mid-field region test calibration. Generally, the far-field region is only used for beam testing of phased array antennas and is not used as a calibration and testing method for phased array antennas.
[0051] Near-field induction test calibration: such as Figure 2 As shown, the phased array antenna was tested in a microwave anechoic chamber with a planar near-field scanning rig. The scanning surface of the test probe on the rig was planar, and the distance between the test probe and the phased array antenna was no greater than [missing information]. By analyzing the test data of the near-field region of the induction, the initial amplitude and phase distribution of the active channel corresponding to the aperture of the phased array antenna can be obtained, thereby obtaining the amplitude and phase compensation parameters of the active channel of the phased array antenna.
[0052] Near-field testing and calibration: such as Figure 2 As shown, the phased array antenna is tested in a microwave anechoic chamber with a planar near-field scanning rig. The scanning surface of the test probe on the rig is planar, and the distance between the test probe and the phased array antenna is not less than [missing information]. and not greater than (D represents the aperture length of the phased array antenna). Based on the test data in the near field region, the initial amplitude and phase distribution of the active channel corresponding to the aperture of the phased array antenna is analyzed, and the amplitude and phase compensation parameters of the active channel of the phased array antenna can be obtained.
[0053] Midfield test calibration: such as Figure 3 As shown, phased array antennas also need to be tested in a microwave anechoic chamber. A test probe is set up in front of the phased array antenna under test within a mid-field distance range to complete the initial amplitude and phase data acquisition of the active channel of the phased array antenna under test. The amplitude and phase compensation parameters of the active channel of the phased array antenna can be obtained by subtracting the mid-field path difference.
[0054] (2) Internal monitoring system of phased array antenna
[0055] Typical phased array antennas such as Figure 4 and Figure 5 As shown, it mainly consists of an antenna, a radio frequency module, an internal monitoring network, a fiber optic network, back-end processing, and a computer. The antenna is the functional unit that performs microwave radiation and reception. The radio frequency module is the functional unit that forms a high-power microwave signal for transmission and a small-signal microwave reflection signal for reception via an active channel. The fiber optic network is the functional unit that performs uplink optical command control and downlink optical data transmission for the radio frequency module and the monitoring transceiver module. The back-end processing is the back-end equipment functional unit that forms uplink control signals and processes downlink data. The computer is the display and control terminal functional unit that controls and displays the various functions of the phased array antenna. A phased array antenna generally has an internal monitoring network. Internal monitoring is a test system that forms a closed loop through an internal monitoring radio frequency network and monitoring transceiver channels integrated within the phased array. The internal monitoring network mainly includes couplers, monitoring power dividers, and monitoring transceiver modules. Couplers transmit a small portion of the energy of the microwave signal transmitted via radio frequency to the internal monitoring network. Monitoring power dividers combine the coupled signals from all active channels into one channel. The monitoring transceiver module is a device that can both transmit and receive microwave signals. When the phased array antenna is transmitting for monitoring, the monitoring transceiver module is in the receiving state; when the phased array antenna is receiving, the monitoring transceiver module is in the transmitting state, thus forming a complete monitoring transceiver system loop.
[0056] During launch monitoring operations, such as Figure 4 As shown, the active T / R channel in the tested RF module is in normal transmit mode, while the other T / R channels are under load. The TR transmit signal of the tested channel is partially coupled through a directional coupler and enters the monitoring power divider of the internal monitoring network. It is then received and sampled by the A / D module within the monitoring transceiver module, transmitted via fiber optic cable to the backend processing, and finally sent to the computer to calculate and display the amplitude and phase data. The amplitude and phase data of all active channels are obtained through cyclic testing.
[0057] When receiving internal monitoring work, such as Figure 5 As shown, the DDS output monitoring signal of the monitoring transceiver module is output to the active channel TR input terminal in all RF modules via the internal monitoring network. All active channels are in normal receiving state. After sampling the RF signal, the active channels transmit it to the back-end equipment via the fiber optic network and finally enter the computer to calculate and display the amplitude and phase data.
[0058] (3) Gold calibration method based on internal monitoring system
[0059] The internal monitoring system enables phased array antennas to perform online active channel monitoring, providing important information such as performance parameters and health status. Simultaneously, the internal monitoring system can be used to process the phased array antenna calibration and compensation data, creating a "golden file" for recalibrating the active channel amplitude and phase compensation data in external operating environments after the antenna leaves the factory.
[0060] The specific steps of the phased array antenna calibration test method based on the internal monitoring system are as follows:
[0061] 1) Obtain the compensation file D of the active channel of the phased array antenna using one of the following testing methods: inductive field, near field, or mid field. 补 ;
[0062] 2) Under the condition of uncompensated phased array antenna, the raw data file A of internal monitoring is obtained through the internal monitoring system. 原 ;
[0063] 3) Create the gold standard file C=D 补 +A 原 The compensation file and the gold file are placed in the local file of the phased array antenna compensation parameters. Both the compensation file and the gold file are delivered with the phased array antenna.
[0064] 4) In external operating environments, if the performance of the phased array antenna degrades due to long-term operation, environmental changes, or replacement of faulty active channel components, the internal monitoring system will be used to monitor the active channel and obtain a compensated file of the original data obtained by the internal monitoring system under uncompensated conditions of the phased array antenna. This file is denoted as A. 补 Then calculate A 补 After pressing +C, you will obtain a brand new active channel compensation file for the phased array antenna.
[0065] 1.1) Method for obtaining the gold file in the midfield test
[0066] Building such Figure 6 The diagram shows a mid-field test. The phased array antenna consists of a TR module, feed line, antenna, etc.; the internal monitoring system of the phased array antenna consists of a coupler, internal monitoring power divider, etc.; the left area is the internal area of the phased array antenna, and the right area is the external radiation area of the phased array antenna.
[0067] Step 1: Data Acquisition D 原 and A 原
[0068] The midfield test yielded the raw data file D.原 The original data file A is obtained through the internal monitoring system. 原 ;
[0069] Step 2: Calculate the mid-range distance difference C1
[0070] Establish a coordinate plane for the phased array antenna element arrangement, with the center of the array surface as point (0,0). Each antenna element has a coordinate point in this coordinate system, denoted as point A, with coordinates (x, y). During field calibration, the projection coordinates of the external monitoring antenna (denoted as point C) onto the plane containing the array surface are (x0, y0) (denoted as point B). The distance between point B and point C, which is also the vertical distance of the projection of the external monitoring antenna, is z0. The values of x0, y0, and z0 are given after calibration. Any point A can be connected to point B by an oblique line. The length of the oblique line can be obtained from geometric relationships. Points A, B, and C form a new right triangle. The hypotenuse AC of the right triangle can be obtained using the following formula:
[0071]
[0072]
[0073] C1 is the mid-range path difference phase file, calculated using the formula above. The result can be modulo 360 degrees. All length units are in mm, and the frequency f is in MHz. The wavelength is the unit of measurement; the phase is measured in degrees. It is a matrix file formed according to the positions of different antenna elements.
[0074] Step 3: Calculate the gold document C
[0075] Through the above steps, the gold standard can be obtained through calculation, C=D. 补 +A 原 =-(D 原 -C1-A 原 Save the C file according to a specific format. The C file is the gold calibration file, which is an important reference file for subsequent use of phased array antennas. 补 The compensation value of the active channel of the phased array antenna obtained from the mid-field test.
[0076] Step 4: Using the Golden File C
[0077] If the phased array antenna performance degrades and active channel recompensation is required, the internal monitoring system is used to monitor the active channel and obtain a compensated file of the original data obtained by the internal monitoring system under the condition of uncompensated phased array antenna. This file is denoted as A. 补 Then calculate A 补After pressing +C, you will obtain a brand new active channel compensation file for the phased array antenna, which can be used after being burned. The compensation file includes an amplitude file and a phase file. The amplitude file is the amplitude difference between the relative amplitude mean and the phase value, in dB. The phase file is the phase value modulo 360, in degrees.
[0078] 1.2) Method for obtaining gold files for sensing near-field region and near-field region testing
[0079] D obtained by inductive near field and near field testing method 补 The method is simpler: using a suitable inductive near-field or approach measurement system, the distance between the probe and the phased array antenna aperture is adjusted appropriately to obtain the raw inductive near-field or approach test data D. 原 D 补 =-D 原 C=D 补 +A 原 =-D 原 +A 原 D 补 Compensation values for the active channel of a phased array antenna obtained by inductive near-field and near-field testing methods; A 原 : Raw values of internal monitoring tests; Gold File C:.
[0080] 5) Verification effect
[0081] The effect of gold compensation application for a certain phased array antenna, such as... Figure 7 As shown. The blue curve represents the test results in the microwave anechoic chamber at the time of manufacture, and the red curve represents the test results after six months of recompensation using the gold standard data. The test results are based on the beamline diagram at the operating frequency of the phased array antenna as an example. From... Figure 7 The results show that gold compensation can achieve recalibration of phased array antennas after they leave the factory, restoring the phased array antennas to the calibration and compensation effect at the time of leaving the factory and restoring better antenna beam performance.
[0082] The phased array antenna calibration test system based on the internal monitoring system of this embodiment includes: at least one processor; and a memory communicatively connected to at least one of the processors; wherein the memory stores instructions to be executed by the processor to implement the above-described phased array antenna calibration test method based on the internal monitoring system.
[0083] Compared to existing technologies, it has the following characteristics and advantages:
[0084] 1) The gold file is obtained through the built-in internal monitoring system without the need for additional auxiliary hardware.
[0085] 2) The gold standard can be obtained through simple mathematical relationships, without increasing the workload of testing;
[0086] 3) It can achieve rapid recalibration of phased array antennas after they leave the factory.
[0087] 4) Suitable for three types of testing methods: near-field area, near-field area, and mid-field area.
[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for gold calibration testing of phased array antennas based on an internal monitoring system, characterized in that, Includes the following steps: 1) obtaining a compensation file D of the active channels of the phased array antenna by one of the inductive field, near field or mid field test methods 补 ; 2) Under the condition that the phased array antenna is not compensated, the original data file A of internal monitoring is obtained through the internal monitoring system 原 ; 3) Create Gold File C = D 补 + A 原 , placed inside the local file of the phased array antenna compensation parameters; 4) When the performance of the phased array antenna declines, the inner monitoring system is used to monitor the active channel, and a compensation file A of the original data obtained by the inner monitoring system under the non-compensation condition of the phased array antenna is obtained 补 , A 补 +C is calculated to obtain a brand new compensation file of the active channel of the phased array antenna; The compensation file D for the active channel of the phased array antenna was obtained through inductive field testing. 补 The specific steps are as follows: Using a suitable inductive field measurement system, adjust the distance between the probe and the phased array antenna aperture to obtain the raw test data D of the inductive field. 原 ;D 补 =-D 原； The compensation file D for the active channel of the phased array antenna was obtained through near-field testing. 补 The specific steps are as follows: Using a suitable near-field measurement system, adjust the distance between the probe and the phased array antenna aperture to obtain the raw test data D of the induced field. 原 ;D 补 =-D 原 ; Compensation file D for the active channel of the phased array antenna was obtained through mid-field testing. 补 The specific steps are as follows: The midfield test yielded the raw data file D. 原 ; Calculate the mid-range difference C1; Calculate D 补 =-(D 原 -C1); The specific method for calculating the mid-range distance difference C1 is as follows: Establish a coordinate plane for the phased array antenna elements, with the center of the array surface as the point (0,0). Each antenna element has a coordinate point A under this coordinate plane, with the coordinates of point A being (x, y). During field calibration, the projection coordinates of the external monitoring antenna point C to the plane where the array surface is located are point B, with the coordinates of point B being (x0, y0). The distance between point B and point C, which is the vertical projection distance of the external monitoring antenna, is z0. The values of x0, y0, and z0 are all given after calibration. AC is obtained through the following formula: Where f is the frequency, in MHz; λ is the wavelength.
2. The gold calibration test method for phased array antennas based on an internal monitoring system according to claim 1, characterized in that, The mid-field test specifically involves testing the phased array antenna in a microwave anechoic chamber, setting up a test probe in front of the phased array antenna under test within a mid-field distance range, and completing the initial amplitude and phase data acquisition of the active channel of the phased array antenna under test.
3. The gold calibration test method for phased array antennas based on an internal monitoring system according to claim 1, characterized in that, The inductive field measurement system is as follows: the phased array antenna is tested in a microwave anechoic chamber with a planar near-field scanning frame. The scanning surface of the test probe on the scanning frame is planar, and the distance between the test probe and the phased array antenna is no greater than [missing information]. , λ is the wavelength.
4. The gold calibration test method for phased array antennas based on an internal monitoring system according to claim 1, characterized in that, The near-field measurement system specifically involves testing the phased array antenna in a microwave anechoic chamber equipped with a planar near-field scanning rig. The scanning surface of the test probe on the rig is planar, and the distance between the test probe and the phased array antenna is not less than [missing information]. and not greater than , Where λ is the wavelength and D is the aperture length of the phased array antenna.
5. The gold calibration test method for phased array antennas based on an internal monitoring system according to claim 1, characterized in that, The compensation files and gold files in steps 1) and 3) are delivered with the phased array antenna.
6. A phased array antenna calibration test system based on an internal monitoring system, characterized in that, include: At least one processor; And a memory communicatively connected to at least one of the processors; wherein the memory stores instructions executable by the processor to implement the phased array antenna gold calibration test method based on an internal monitoring system as described in any one of claims 1 to 5.