摘要
为提高激光目标系统跟踪能力,提出了一种基于四象限探测的激光跟踪系统。采用四象限探测器完成光斑位置检测与目标信息接收,分析传感器光照位置的输出电流误差变化与光斑偏离光敏面中心坐标对应关系,感知和判断目标方位及运动方向,通过伺服系统的闭环控制方法,实现激光快速跟踪,利用上位机对被跟踪目标的方位信息进行图形监测。实验测试表明,采用四象限光电检测构建的激光目标伺服跟踪系统,能快速搜寻锁定目标,并实施激光指向干扰,在目标位置±20°移动变化时,系统跟踪误差约为0.1%,跟踪速度达到22.6°/s,实验结果为激光跟踪的实际应用提供一定参考价值。
In order to improve the tracking ability of laser target system,a laser tracking system based on four-quadrant detection was proposed.Four-quadrant detectors are used to complete the spot position detection and target information reception.The output current error of the sensor illumination position is analyzed and the light spot deviates from the corresponding relationship of the photosensitive surface center coordinates,and the target azimuth and motion direction are sensed and judged.Through the closed-loop control method of the servo system,laser fast tracking is realized,and the orientation information of the tracked target is graphically monitored by the upper computer.Experimental tests have proved that using a laser target servo tracking system built with four-quadrant photoelectric detection,the system can quickly search for locked targets and implement laser pointing interference.When the target position changes by 20°,the tracking error of the system is about 0.1%,and the tracking speed reaches 22.6°/s.The experimental results provide a certain reference value for the practical application of laser tracking.
作者
刘思鸣
何宁
邓德迎
LIU Siming;HE Ning;DENG Deying(School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China;Guangxi Colleges and Universities Key Laboratory of Unmanned Aerial Vehicle (UAV) Telemetry,Guilin University of Aerospace Technology,Guilin 541004,China)
出处
《桂林电子科技大学学报》
2019年第1期7-11,共5页
Journal of Guilin University of Electronic Technology
基金
国家自然科学基金(61461014)
广西高校无人机重点实验室主任基金(WRJ2016KF02)
关键词
光电探测
位置传感
激光跟踪
伺服控制
photoelectric detection
position sensing
laser tracking
servo control
