四象限探测器测角算法分析与改进  

Analysis and improvement in angle-measurement algorithm of the four-quadrant detector

作　　者：陈勇[1] 祝天瑞[1] 李焕功[1] 

机构地区：[1]重庆邮电大学网络化控制与智能仪器仪表教育部重点实验室,重庆400065

出　　处：《激光与红外》2009年第6期669-672,共4页Laser & Infrared

基　　金：重庆市教委项目(KJ090525)资助

摘　　要：四象限探测器测角误差是影响激光跟踪系统精度的关键,因此算法设计是提高跟踪系统跟踪精度的根本。首先分析了消除光学系统四象限探测器测角误差的几种算法,随后在不考虑非均匀性的影响下的条件下,提出了将插值法和传统算法相结合的一种改进算法,测角误差能控制在0.1°之内且容易实现。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.

关 键 词：激光跟踪 四象限探测器 插值法 误差 

分 类 号：TH741.23[机械工程—光学工程] O241.3[机械工程—仪器科学与技术]