Four-quadrant detector errors affecting the accuracy of laser-guided system mostly,so algorithm design is the root of improving the accuracy in guidance system.This paper firstly analyzes several algorithms in eliminating the four-quadrant detector errors in optical system,and then put forward an improved algorithm combining the interpolation algorithm and the traditional one.The error is less than 0.1°,and it′s easy to achieve as well.
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陈勇,祝天瑞,李焕功.四象限探测器测角算法分析与改进[J].激光与红外,2009,39(6):669~672 CHEN Yong, ZHU Tian-rui, LI Huan-gong. Analysis and improvement in angle-measurement algorithm of the four-quadrant detector[J]. LASER & INFRARED,2009,39(6):669~672