动基座激光束定向偏差测量新方法

提出了将二维摆镜和象限探测器相结合的动基座激光束定向偏差测量新方法.以摆镜作为快速调整激光发射主光轴方向的元件,利用象限探测器测量从目标返回激光主光轴的动态变化量,并从中分离光轴稳定平台运动对摆镜的耦合作用,得到激光主光轴相对目标视线的偏角,进而操控激光发射主光轴稳定瞄准目标.该方法具有较好的实时性,适用于运动目标的跟踪及时间为秒级的机载激光制导武器.

A New Measuring Method of Laser Positional Error on Moving Platform

Combining quadrant detector and fast steering mirror,a new measuring method of the positional error of laser beam on moving platform is proposed.In this method,the fast steering mirror is used to stabilize axis direction of outputting laser beam and the quadrant detector is used to measure the corresponding change of return laser position,then the coupling action between fast steering mirror and the movement of tracking platform is separated in order to get the angle between laser axis and line-of-sight of target.According to this,it can be concluded that the axis of the laser at the target steadily and guide the missile attacking precisely.This method is suitable for real time processing and it is suitable to the laser guided weapons with second class guiding time at last stage trajectory.