Method for monitoring angle simulation precision of radio frequency simulation test system in real time

Abstract

The invention belongs to the technical field of electromagnetic compatibility testing, and discloses a method for monitoring the angle simulation precision of a radio frequency simulation test systemin real time. A system for monitoring the angle simulation precision in real time comprises a calibration control computer, a three-axis calibration turntable, calibration equipment and a total station, the calibration equipment located in the middle in a simulation microwave anechoic chamber is fixed to a lifting column through the three-axis calibration turntable, the total station is arranged in the simulation microwave anechoic chamber on one side of the calibration equipment, tested equipment is arranged in the simulation microwave anechoic chamber on one side of the calibration equipment, and the tested equipment is higher than the calibration equipment; the calibration control computer is arranged outside the simulation microwave anechoic chamber; the phase difference and the amplitude difference generated by the transmission path difference are corrected through the full-path phase compensation technology, the measurement of the angle simulation precision is realized, and the real-time monitoring of the angle simulation precision of a simulated antenna array is realized; therefore, the confidence degree of the test can be ensured. The method can be applied to far-field measurement of the radiation characteristics of a phased-array antenna.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic compatibility testing, and relates to a method for real-time monitoring of angular simulation accuracy of a radio frequency simulation test system. Background technique [0002] The RF simulation antenna array is an important part of the hardware-in-the-loop RF simulation test system. It is mainly used to radiate the RF signal generated by the signal environment simulation subsystem into the microwave anechoic chamber. Control the amplitude and phase of the RF signal to simulate the continuous movement of the radar target in azimuth and elevation. [0003] The semi-physical radio frequency simulation test system: a simulation system composed of a mathematical model, a physical effect model and an actual system, which is used to carry out simulation tests or conduct related research. RF simulation antenna array: It is mainly composed of RF feed channel, control computer and spherical anten...

AI Technical Summary

Problems solved by technology

Since the tested equipment has been installed at the center of the sphere during the simulation test, real-time monitoring of the angle simulation accuracy is no longer possible

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