Self-adaptive radar antenna position oscillation treating method

Abstract

The invention provides a self-adaptive radar antenna position oscillation treating method and aims to provide a method capable of detecting characteristics of a radar antenna position automatically and eliminating position oscillation when the radar antenna position is found out. The technical scheme includes that in a tracking radar servo control system, motor current of a servo controller is taken as negative feedback of an electric current ring, motor speed is taken as negative feedback of a speed ring, a position ring is designed to be controlled proportionally and integrally, and the current ring and the speed ring are designed into servo system loops which are controlled proportionally, integrally and differentially; an operation processor arranged inside the servo controller is used for receiving and executing control commands transmitted by a radar terminal system and error information transmitted by a radar information processing system and regularly detecting errors of tracking positions of a radar antenna. When oscillation of the radar antenna position is detected, the proportionality coefficient and the integration coefficient of a servo control position loop are gradually decreased during every calculation period, and output voltage is lowered to eliminate the oscillation.

Description

technical field [0001] The invention relates to a method for adaptively processing radar antenna position oscillation. Background technique [0002] The tracking radar servo system, as the actuator that drives the radar antenna, realizes the control system that the output variable accurately follows or reproduces the input variable. It is a relatively special servo system. The radar servo system is an important part of the radar. It plays an important role in searching for targets, tracking targets, and accurately measuring the position and other parameters of targets. The main function is to perform comprehensive calculations based on instructions and errors, and control the motor to drag the radar antenna to follow. The movement of the target and the position of the radar mechanical axis are accurately measured in real time. The performance of the servo system will directly affect the tracking accuracy of the radar. The radar servo system is a three-axis system including...

AI Technical Summary

Problems solved by technology

[0009] The prior art precision tracking radar servo system is usually designed as a non-static system, but there are various nonlinear factors in the actual radar servo system, for example, there is an insensitive zone (dead zone), slope asymmetry, saturation nonlinearity in the servo circuit , friction nonlinearity, backlash of the gear transmission mechanism, quantization error of feedback components, structural resonance, wind direction and wind force changes, transmission delay jitter, etc., will inevitably lead to poor tracking of the radar servo system. Under the influence of various nonlinear factors, It is also easy to cause the position of the radar antenna to oscillate. Therefore, certain measures need to be taken to reduce the oscillation and improve the tracking accuracy

Images