快速周扫探测系统扫描平台的高精度稳定控制  

High-precision stability control of scanning platform of fast circumferential scanning detection system

作　　者：张雅琼 郭建都[1] 徐阳[1] 郝小健[1] 陈光辉[1] 周婧[1] 朱晶晶[1] ZHANG Yaqiong;GUO Jiandu;XU Yang;HAO Xiaojian;CHEN Guanghui;ZHOU Jing;ZHU Jingjing(Information and Control Technology Department,China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]中国北方车辆研究所信息与控制技术部,北京100072

出　　处：《应用光学》2022年第3期375-385,共11页Journal of Applied Optics

基　　金：国家自然科学基金;教育部新世纪优秀人才支持计划;十三五航天预研基金。

摘　　要：快速周扫探测系统是一种利用高速摆动的反扫装置实现单视场场景凝视补偿成像的新型全景光电系统。对该系统的快速扫描原理进行了详细介绍,指出扫描平台的高精度稳定控制是快速周扫探测系统设计与实现的关键。根据扫描平台的控制机理建立了水平向与垂直向的惯性稳定平台数学模型,采用分数阶PID(proportion integration differentiation)控制器对扫描平台进行控制,分析并验证了基于分数阶PID控制算法对扫描平台的控制性能。实验结果表明:与传统PID控制器相比,采用分数阶PID控制器的扫描平台具有无超调和抗扰动性能更强的优点,水平向稳定精度由0.005 82°(1σ)提升至0.001 26°(1σ),垂直向稳定精度由0.003 66°(1σ)提升至0.001 62°(1σ),能保证给出的快速周扫探测系统获得清晰稳定的全景图像。The fast circumferential scanning detection system is a new panoramic photoelectric system which realizes the gaze compensation imaging of single field of view scene by using inverse scanning device with high-speed swing. The fast scanning principle of the system was introduced in detail, which pointed out that the high-precision stability control of scanning platform was the key factor to the design and implementation of fast circumferential scanning detection system. According to the control mechanism of scanning platform, the mathematical models of horizontal and vertical inertial stabilization platform were established, the control of scanning platform by adopting fractional-order proportion integration differentiation(PID) controller was realized, and finally, the control performance of scanning platform based on fractional-order PID control algorithm was analyzed and verified. The experimental results show that the scanning platform using fractional-order PID controller has the advantages of no overshoot and stronger anti-disturbance performance in comparison with traditional PID controllers. The horizontal stabilization accuracy is improved from0.005 82°(1σ) to 0.001 26°(1σ), and the vertical stabilization accuracy is improved from 0.003 66°(1σ) to0.001 62°(1σ), which can ensure the described fast circumferential scanning detection system to obtain the clear and stable panoramic images.

关 键 词：快速周扫探测系统 全景成像 分数阶PID 惯性稳定平台 

分 类 号：TN216[电子电信—物理电子学]