167 results about "Phase center" patented technology

The invention relates to the technical field of signal analysis, in particular to a GNSS (Global Navigation Satellite System) detection method and system based on machine learning, and the method comprises the steps: receiving a navigation radio-frequency signal containing reality and deception, and carrying out the down-conversion of an RF (Radio Frequency) front end to obtain intermediate-frequency data; gNSS signal capture is completed by searching correlation peaks in frequency and code phases based on intermediate frequency data; in the capturing stage, a motion state, a correlation peak number, a noise value, capturing parameters and peak + / -1 chip sampling features are extracted and input into a machine learning classification model to judge whether cheating exists or not; if so, separating the deception signal from the real signal, and respectively sending the deception signal and the real signal into independent tracking channels; measuring an array element carrier relative phase by an array antenna, establishing a phase center model, and correcting to obtain an effective phase center and a differential baseline; according to the method, a deception azimuth angle and a pitch angle are obtained, a beam weight is calculated, a deception direction is subjected to null setting, a real direction is subjected to main lobe protection, and a weight value is fed back in real time to improve a signal carrier-to-noise ratio and locking stability. According to the invention, the problem that the existing commercial GNSS signal is low in power and easy to be interfered by deception is solved.

The invention relates to the technical field of satellite navigation and precision positioning, in particular to a Beidou large-area sea area millimeter-level high-precision positioning method. The method comprises the specific implementation steps that marine environment state data and Beidou observation data are collected and preprocessed, and environment influence parameters are extracted; establishing a quantitative model based on the environment state data, the satellite signal propagation data and the antenna phase center data, and obtaining propagation path delay data and antenna phase center change data; processing the observation data and the self-adaptive reference network information based on a Beidou cooperative satellite positioning algorithm to obtain a preliminary positioning result; constructing a satellite signal error model to analyze environmental influence parameters and data, obtaining a positioning error value, and adjusting a preliminary positioning result; and calculating and judging the positioning result, dividing the positioning result into a first type of working condition and a second type of working condition, switching the second type of working condition to an emergency mode, and performing enhanced compensation on the Beidou signal error. According to the invention, the positioning precision, reliability and adaptive capability of the Beidou system in a marine environment are improved.

The invention discloses an imaging method, system and device for correcting range migration based on frequency domain phase multiplication, and the method comprises the following steps: carrying out the range pulse compression of echo data of each receiving array element in a range frequency domain; performing data preprocessing according to a phase center approximation method to obtain equivalent transmit-receive combined synthetic aperture sonar data; deriving a secondary distance compression item at the reference distance in the two-dimensional frequency domain, and performing secondary distance compression processing; deriving a space-variant migration phase term of range migration correction corresponding to each target with different distances; carrying out filtering processing on the two-dimensional frequency domain sonar data; a filtered result is converted to a range-direction time domain and an azimuth-direction Doppler domain, data of targets at corresponding distances are extracted, and the data extracted each time are combined in sequence; and for the data after range migration correction, azimuth pulse compression is carried out in a range time domain and an azimuth Doppler domain, and the data is converted to a two-dimensional time domain to obtain a sonar image.

The invention discloses a machine learning-based antenna phase center error compensation method, which comprises the steps of firstly obtaining frequency, attitude angle and temperature information, then obtaining a phase center error compensation value based on the obtained frequency, attitude angle and temperature information through a light-weight model obtained by pre-training, and finally obtaining a phase center error compensation value based on the phase center error compensation value. A compensated ranging result is determined. According to the compensation method, temperature and other physical field non-electromagnetic parameters are introduced to serve as input, the influence of in-orbit operation environment changes on the phase center is compensated, meanwhile, a machine learning model is adopted for calculating a compensation value, the machine learning model can approach a complex multi-dimensional nonlinear function, interpolation errors are eliminated, and compensation precision is remarkably improved.

The invention provides a satellite Ka wave band inter-satellite link antenna phase center change calibration method and system, and the method comprises the steps: collecting L wave band observation data and Ka wave band inter-satellite link observation data of a ground observation station, carrying out the gross error elimination, cycle slip detection, epoch normalization and combination, and generating a clock error-free and geometry-free observation quantity; analyzing the variation range of a nadir angle and an azimuth angle of the observation data, constructing a piecewise linear original PCV function model taking the nadir angle and the azimuth angle as independent variables, and synchronously resolving original PCV parameters of a satellite L / Ka wave band in a joint orbit determination process; decomposing the original PCV into a smooth PCV and a corresponding Z-direction PCO by adopting a least square separation technology, performing interpolation on a PCV value based on a discrete grid, and establishing a final PCV grid correction model; joint orbit determination error correction is introduced into the PCV correction model, a new round of joint orbit determination is carried out, the satellite L / Ka waveband PCO correction amount is calculated, and high-precision in-orbit calibration of the satellite Ka waveband inter-satellite link antenna phase center change is achieved.

The invention provides a Beidou satellite yaw attitude real-time estimation method based on an inter-satellite link observation value. The Beidou satellite yaw attitude real-time estimation method comprises the following steps: acquiring a Ka-band inter-satellite link bidirectional observation value of a Beidou third satellite; performing gross error elimination on the inter-satellite link observation value; performing epoch normalization on inter-satellite link bidirectional observation values of all satellites near each epoch point, and adding each pair of link bidirectional observation values to form a clock error-free combined observation quantity; an observation equation is established after error correction, and Ka antenna phase center deviation of each satellite is estimated per epoch; according to the relationship between the satellite yaw attitude change and the single-epoch Ka antenna phase center deviation, inversely solving the yaw attitude deviation of the satellite at each epoch moment; and adding the satellite attitude deviation and the nominal yaw attitude to obtain an estimated actual yaw attitude of the satellite. According to the method, the yawing attitude estimation precision of the Beidou third satellite can be improved, high-precision monitoring of the actual change condition of the satellite attitude is realized, and a reference is provided for satellite attitude modeling during an earth shadow period.

The invention discloses an interference atlas recognition method and device based on morphological characteristics, electronic equipment and a storage medium, the method and device are applied to the electronic equipment, and specifically, binarization processing is performed on an original PRPD atlas to be recognized to obtain a binarized PRPD atlas; calculating an amplitude threshold value of a maximum bottom noise signal in the binarized PRPD atlas; calculating a distribution curve of the partial discharge pixel points greater than the maximum bottom noise signal based on the amplitude threshold; calculating based on the distribution curve to obtain a phase correlation matrix and a partial discharge phase center matrix; and based on the constructed phase distribution judgment threshold, the phase correlation matrix and the partial discharge phase center matrix, judging the original PRPD atlas to obtain a recognition result. According to the scheme, preliminary screening of the interference atlas in the acquired PRPD atlas can be realized, so that the workload of subsequent expert analysis of partial discharge conditions based on the PRPD atlas is greatly reduced.

Techniques, systems, and devices are disclosed for synthetic aperture ultrasound imaging using spread-spectrum, wide instantaneous band, coherent, coded waveforms. In one aspect, a method includes synthesizing a composite waveform formed of a plurality of individual orthogonal coded waveforms that are mutually orthogonal to each other, correspond to different frequency bands and including a unique frequency with a corresponding phase; transmitting an acoustic wave based on the composite waveform toward a target from one or more transmitting positions; and receiving at one or more receiving positions acoustic energy returned from at least part of the target corresponding to the transmitted acoustic waveforms, in which the transmitting and receiving positions each include one or both of spatial positions of an array of transducer elements relative to the target and beam phase center positions of the array, and the transmitted acoustic waveforms and the returned acoustic waveforms produce an enlarged effective aperture.

The invention provides an ultra-short baseline calibration method, device and system, and belongs to the technical field of underwater acoustic measurement, and the ultra-short baseline calibration method comprises the following steps: according to an antenna phase center position, a carrier instantaneous attitude, a distance and azimuth information at each observation moment, and installation parameters of an ultra-short baseline acoustic transducer relative to an inertial navigation system, carrying out calibration on the ultra-short baseline; establishing a distance equation between the ultra-short baseline acoustic transducer and the ultra-short baseline acoustic beacon at each observation moment; establishing a residual equation of each distance equation; and solving the residual equation through a nonlinear least square method to obtain installation parameters. According to the method, the installation parameters of the ultra-short baseline acoustic beacon can be efficiently and accurately calibrated, and the problems that beacon laying and recycling operation is complex, cost is high, the operation period is long, efficiency is low, and the beacon is prone to drifting due to the influence of ocean currents are effectively solved.

The present invention relates to a method and device for measuring the attitude of an array antenna, comprising obtaining a solution baseline vector through satellite observation of array elements on the array antenna to be measured, inputting the solution baseline vector into a three-dimensional attitude solution algorithm to obtain the previous three-dimensional attitude angle, obtaining the attitude matrix of the array antenna to be measured based on the previous three-dimensional attitude angle, eliminating the phase center error using the attitude matrix and phase direction diagram, using the three-dimensional attitude solution algorithm to obtain the current three-dimensional attitude angle of the array antenna to be measured, determining whether the current three-dimensional attitude angle has converged based on the current three-dimensional attitude angle and the previous three-dimensional attitude angle, and using the current three-dimensional attitude angle as the attitude angle solution result. The present invention eliminates the influence of the phase center error, improves the accuracy of the attitude solution result, improves the success rate of ambiguity solution and the reliability of the attitude measurement result, and improves the accuracy of the roll angle solution. The present invention also relates to a device and a storage medium.

The utility model relates to a millimeter wave automobile radar test rotary table which comprises a rotary table azimuth axis base, a rotary table azimuth axis is installed on the rotary table azimuth axis base, an azimuth axis cross beam is installed on the rotary table azimuth axis, a rotary table stand column is installed on the azimuth axis cross beam, an arc-shaped guide rail is installed on the rotary table stand column, and the arc-shaped guide rail is installed on the rotary table stand column. A pitch shaft is installed on the arc-shaped guide rail, a translation shaft is installed on one side of the pitch shaft, and a polarization shaft is installed on the side, away from the pitch shaft, of the translation shaft. Through a new rotary table design structure, axes of an azimuth axis, a pitch axis, a translation axis and a polarization axis of the rotary table intersect at one point in space, the point coincides with a phase center of a phased array or a radar, the phased array or the radar is tested on the rotary table, the phase center is not changed, and data of a test structure is more accurate; through the design of the arc-shaped guide rail structure, double targets can be supported, and the effective stroke coverage is wider.

The invention provides a method, a device, equipment and a medium for improving the angle measurement accuracy of a millimeter-wave radar, and the method comprises the steps: driving the millimeter-wave radar to rotate at a constant speed through a control rotary table, and enabling a to-be-detected target to be located at different detection angles of the millimeter-wave radar. And controlling the millimeter-wave radar to perform detection every preset time period, and obtaining multiple echo data during multiple times of detection. And processing each piece of echo data to obtain a plurality of pieces of phase information. And performing fitting based on the multiple pieces of phase information and the turntable angle corresponding to each piece of phase information, and determining an antenna phase center distance and an initial phase difference. And determining a steering vector based on the antenna phase center distance, the initial phase difference and the plurality of preset detection angles. And determining a target detection angle of the to-be-detected target based on the steering vector and the phase information. And based on the target detection angle and the turntable angle corresponding to the target detection angle, determining a detection angle error so as to compensate the angle of the millimeter wave radar detection target based on the detection angle error.

The embodiment of the application provides a parameter inversion method, device and electronic equipment, wherein the parameter inversion method comprises: performing interference suppression on a received incomplete SAR signal to obtain a non-interference signal matrix; wherein the non-interference signal matrix comprises a plurality of non-interference pulse signals with time sequence continuity, and the incomplete SAR signal represents that the SAR signal is incomplete; sequentially performing data processing on each non-interference pulse signal to obtain pulse parameters of each non-interference pulse signal; the pulse parameters at least comprise a stationary phase center position, a termination point, a pulse bandwidth, a pulse signal frequency modulation rate and a peak position; based on the pulse parameters of each non-interference pulse signal, signal parameters of the incomplete SAR signal are inverted to obtain transmission parameters of the incomplete SAR signal; the signal parameters at least comprise a pulse width, a bandwidth, a frequency modulation rate, a pulse repetition interval and a pulse repetition frequency.

This invention discloses a method for correcting positioning errors of missile-borne SAR, specifically relating to the field of satellite positioning technology. It is used to solve the problem of unstable positioning error correction caused by the non-rigid deformation between the antenna phase center and the inertial navigation unit not entering the continuous solution chain during high-dynamic flight. By synchronously acquiring satellite positioning observation residuals and raw acceleration data, an acceleration gradient sequence is generated. In the first update cycle, the reference non-rigid deformation vector is extracted and a model degradation command is generated. In the second update cycle, the dynamic spatial offset of the antenna phase center is extrapolated, and then a Doppler frequency shift compensation sequence is generated by projecting along the instantaneous line-of-sight direction of the synthetic aperture radar and fed forward into the radar processor.

The application discloses an on-orbit calibration method and system for an antenna phase center of a microwave ranging system, and relates to the technical field of microwave measurement. The method comprises the following steps: determining a maneuvering angle of a main satellite in a single direction according to a maneuvering period, a maneuvering initial offset angle and a maneuvering angle amplitude of the satellite; constructing an observation equation between two satellites, and performing differential processing on the observation equation; obtaining an estimated state of a main satellite phase center in a satellite center-of-mass system at a current moment according to the observation equation after the differential processing; and calibrating the estimated state of the main satellite phase center in the satellite center-of-mass system at the current moment by using the maneuvering angle of the satellite in the single direction at the current moment. The application can inhibit the influence of satellite attitude disturbance and improve test precision.

A multiband resonator element which, on the one hand, compensates the components of an electromagnetic field radiated from its phase centre, located on the axis of symmetry of the resonator, to control the polarization purity of a radiating element. On the other hand, it enables the selection of the electromagnetic fields reflected and transmitted on a frequency- and multiband-selective surface. In this sense, this is an innovative element that enables the design of directive radiating elements and with an axial ratio for its circular polarization less than or equal to 1.5 dB for all the angles belonging to the hemisphere centred on broadside. Thus, it can be used in the design of reflectarrays, transmitarrays and any dichroic multiband surface, likewise on metamaterial surfaces.

This invention discloses a broadband circularly polarized integrated feed transmission array antenna covering the entire Ka-band, comprising an array surface and an integrated feed. The phase center of the integrated feed coincides with the focal point of the array surface, illuminating the array surface perpendicularly and forming a 45-degree angle with the array surface in the horizontal direction. The array surface comprises multiple array elements of different sizes arranged linearly. Each array element includes two orthogonally arranged first and second dielectric substrates, which have the same height but different thicknesses. The integrated feed comprises a stacked first and second PCB board. A substrate integrated waveguide is disposed on the first PCB board with coupling slots, and a substrate integrated waveguide cavity and annular metal patches surrounding the substrate integrated waveguide cavity are disposed on the second PCB board. This invention achieves a wide axial ratio bandwidth and gain bandwidth, and has the advantages of low profile, light weight, easy fabrication, and low cost.

The invention discloses a handheld high-resolution millimeter-wave synthetic aperture radar imaging method. The method comprises the following steps: mixing signals acquired by a handheld high-resolution millimeter-wave radar to obtain intermediate-frequency signals; performing fast Fourier transform processing and residual video phase removal on the intermediate frequency signal; calculating the frequency response corresponding to the distance between the phase center of the radar antenna and the pixel point through linear interpolation; obtaining a preliminary result according to backward projection imaging; calculating position error estimation according to a minimum entropy self-focusing algorithm; and track correction is carried out according to the position error estimation, and then backward projection imaging is carried out again. The minimum entropy self-focusing backward projection algorithm provided by the invention takes image entropy minimization as an optimization target, compensates the position error of the phase center of the radar antenna through a coordinate descent method, does not need to depend on an external sensor, and effectively improves the imaging definition, thereby achieving compact and efficient imaging. The invention discloses a light and independent handheld high-resolution millimeter wave synthetic aperture radar system.

The invention discloses a complex multi-path underground vehicle automatic positioning method based on an improved SAR (synthetic aperture radar), relates to the technical field of radio frequency identification targets, and aims to analyze offsets of a physical center and a phase center of an antenna and calibrate the phase center of the antenna through relative movement between a tag and the antenna. The method comprises the following steps: firstly, carrying out multipath detection on a phase measurement value, and eliminating the influence of a multipath effect on the phase; secondly, normalization processing is carried out on the lowest point of the unwrapping phase, the problem of phase period ambiguity is solved, and fixed offset is eliminated; and finally, constructing a target function to realize positioning. Compared with a grid matching method, the method has the advantages that the objective function is directly optimized instead of matching the prior phase sequence of each grid point one by one. Meanwhile, the factor of environmental noise is also considered, and the positioning precision is further improved, so that the high-precision positioning of the target vehicle is realized under the conditions that the underground garage has no GPS and the multipath environment is complex.

The application relates to an antenna calibration method and device, comprising the following steps: selecting qualified visible satellites from GNSS satellites based on carrier phase observations, calculating unit observation vectors of the visible satellites, and determining reference satellites of each epoch according to the unit observation vectors of all the visible satellites; constructing a set of triple difference phase center error measurements; constructing a spherical harmonic function fitting model according to the set of triple difference phase center error measurements, and obtaining a phase pattern of the antenna to be calibrated after solving. The application is suitable for large-scale calibration of low-cost antennas. The carrier phase ambiguity is eliminated, the complex ambiguity resolution and verification process is avoided, the complexity of the phase center error calibration is reduced, the influence of triple difference noise on the fitting accuracy of the phase pattern is reduced, and the accuracy of the antenna calibration result is improved. The application also relates to an equipment and a storage medium.

The application discloses a kind of angle test method and device of radar equipment, storage medium and electronic device, the method comprises: receiving angle test request, wherein the angle test request is used to request the angle test of target radar equipment to be tested;In response to the angle test request, the target quantity of target antenna unit deployed in the target radar equipment is detected, and the target phase center of each target antenna unit is detected;According to the target quantity, the target phase center and target mapping relationship determine the target calibration center of the target radar equipment, wherein the target mapping relationship is established in advance according to the wavefront flat characteristic possessed by the phase center average phase pattern of radar equipment;The target radar equipment is tested using the target calibration center, and the above technical solution solves the problem that the angle test performance of target radar equipment is low in related art.

The invention discloses a complex-configuration interferometer antenna array measurement and control method based on multi-coordinate conversion, and the method comprises the steps: carrying out the phase consistency test of array element antennas of an interferometer antenna array, and carrying out the statistics of the equivalent phase centers of a plurality of array element antennas under the same coordinate system; and for the array element antennas with different configurations, combining the equivalent phase center, and performing step-by-step conversion through the transfer matrix among the plurality of coordinate systems so as to obtain the positions and directions of the array element antennas. According to the method, the relatively accurate spatial position of the array element antenna is obtained by utilizing the step-by-step conversion of the transfer matrixes among the coordinate systems, so that the problem of testing the phase center positions of fixed and expanded array element antennas in an interferometer antenna array with a complex configuration can be solved, and the array model precision of the interferometer antenna array is improved; and the direction finding precision of the system is improved.

The application provides a metasurface array, which is composed of several metasurface subarrays of different shapes; the metasurface subarrays cannot coincide with the original metasurface subarrays after being rotated by 90°, or 180°, or 270°, or being mirror flipped, the application adopts irregular subarray division for a super large scale reflector array, compared with a traditional structure without subarrays, the number of bias lines is greatly reduced, that is, the number of control interfaces of the smart reflector is reduced, under the condition that the performance indicators such as scattering pattern gain and sidelobe are slightly reduced; compared with regular subarray division, the grating lobe level can be obviously suppressed due to breaking the periodicity of the phase center of the subarray, and the application can effectively reduce the system cost, power consumption and engineering implementation difficulty.

This invention discloses a design method for a large-spacing, low-sidelobe uniform array, belonging to the field of array antenna technology. The method first designs the initial structure of a movable phase-center antenna element and obtains its far-field data; then, based on the array antenna design specifications, it constructs the array antenna and obtains the far-field radiation pattern; next, it uses a genetic algorithm to optimize the phase center of the array elements, obtaining the optimized phase center position distribution; finally, it changes the structure of each array element to move its phase center to the optimized position; and finally, the design is verified and completed. This invention utilizes movable phase-center antenna elements as array elements, enabling the reduction of far-field sidelobes in a uniformly spaced array distribution without changing the excitation amplitude and phase of each element.

The present invention relates to a base station antenna comprising: a first array comprising a plurality of first radiating elements arranged in a longitudinal direction of the base station antenna; the second array comprises a plurality of second radiating elements arranged in the longitudinal direction of the base station antenna and is transversely adjacent to the first array, the longitudinal position of each second radiating element is staggered from the longitudinal position of the corresponding first radiating element, the first array comprises a first sub-array and a second sub-array, and the second sub-array comprises a plurality of second radiating elements arranged in the longitudinal direction of the base station antenna. Any one of the first and second sub-arrays includes one or more adjacent first radiating elements, where a phase center of a combination of the first and second sub-arrays is substantially aligned with a sub-phase center of the second array.

The application provides a satellite navigation signal antenna phase center calibration method and system, comprising: satellite inter-satellite link data is used for satellite precise clock difference estimation, and high-precision satellite clock difference of the inter-satellite link is obtained; the satellite inter-satellite link clock difference is fitted with a polynomial model, and the satellite inter-satellite link clock difference model coefficients, including clock difference deviation, clock speed and clock drift, are determined; the satellite inter-satellite link clock difference model is used to constrain the satellite clock difference parameters, the random walk estimation is carried out on the clock difference random term, the simplified dynamic orbit determination principle is used, the satellite orbit and the navigation signal antenna phase center deviation are jointly solved, and the on-orbit calibration of the satellite navigation signal (L band) antenna phase center deviation is realized. The method relieves the problem that the satellite antenna phase center deviation is related to the clock difference parameters, guarantees the accuracy of the satellite antenna phase center deviation correction, and supports the satellite precise orbit determination and the precise positioning service.

The invention provides an automatic adjustment method and system for carrier and closed-loop phases in a nuclear magnetic resonance gyroscope, and the method comprises the steps: building phase locking judgment standards based on amplitude proportionality coefficient, 129Xe nuclear spin locking signal amplitude and 131Xe nuclear spin locking signal amplitude maximization; a carrier phase center, a 129Xe closed-loop phase center and a 131Xe closed-loop phase center of the embedded alkali metal magnetometer are respectively determined through frequency sweeping operation, modulation signals which have different frequencies and are far away from a working frequency band are applied near the phase centers, and corresponding direct-current demodulation signal errors are obtained through real-time demodulation. And three independent PID controllers are used for processing the demodulation signal errors respectively, generating phase compensation quantities and feeding back and adjusting corresponding phases, and decoupling, automatic locking and real-time optimization of the three phases are achieved.

The application discloses a navigation system-based rod arm vector calibration method, a controller and a navigation system. The method comprises the following steps: controlling a second machine to rotate with the origin of a second coordinate system as the center; when a second electronic distance measuring device, a first electronic distance measuring device and a second inertial measurement unit are on the same straight line, measuring a first minimum distance value by the second electronic distance measuring device; controlling the first machine and the second machine to rotate by an iterative method to calibrate the relative position of the phase center of the second electronic distance measuring device in the rod arm vector in the second coordinate system; controlling the second machine to rotate by a preset angle, and measuring a second distance measurement value by the second electronic distance measuring device; and obtaining the length of the rod arm vector of the phase center of the second electronic distance measuring device in the second coordinate system according to the first distance measurement value and the second distance measurement value. The embodiment of the application realizes the measurement of the rod arm vector of the UWB phase center in the IMU coordinate system, and reduces the measurement cost and complexity.

The application provides a single-step absolute antenna phase center calibration method and system with PCV constraint, comprising the following steps: establishing an antenna phase center calibration field based on a mechanical arm, forming a short baseline by using the mechanical arm and a static observation base pier, and collecting calibration data outdoors; constructing three-difference observation values, determining an observation model and a random model, and calculating the attitude of the antenna through mechanical arm data; for the three-difference observation values, a PCO approximate value is given, the observation value residual is calculated, then a spherical harmonic function is used to model the PCV, and the PCV value on the grid point is solved and output; according to the coupling between the PCO and the PCV, the phase model is expressed as different combinations of the PCO and the PCV, the minimum PCV constraint is applied, and the final consistent phase model result is obtained, so that the antenna phase center calibration is realized. The application has the advantages that the two-step estimation is reduced to one step, the data processing flow is simplified, the convergence speed of the antenna phase solution is improved, and the consistency of the antenna phase model calibration result is enhanced.

The application provides an antenna phase center automatic test system, comprising: an antenna transmitting subsystem for transmitting electromagnetic waves; an antenna receiving subsystem for receiving electromagnetic waves; a vector network analyzer for measuring the antenna amplitude and phase of the antenna transmitting subsystem and the antenna receiving subsystem based on the electromagnetic waves; a host computer for drawing an antenna directional diagram and analyzing the offset direction of the antenna center alignment position based on the antenna amplitude and phase measured by the vector network analyzer, and further for controlling a system controller; the system controller is used for realizing the motion control of the antenna transmitting subsystem and the antenna receiving subsystem; and an optical platform is used for mounting the antenna transmitting subsystem and the antenna receiving subsystem. The antenna phase center automatic test system can accurately measure the antenna phase center, has high measurement efficiency and measurement precision, has high integration degree, and can realize the mass production test of the antenna.