Predictive Control of Optoelectronic Tracking System  

光电跟踪系统的预测控制研究(英文)

作　　者：张鸿业[1] 魏武中 蔡颖臻 

机构地区：[1]北京理工大学自动控制系,北京100081

出　　处：《Journal of Beijing Institute of Technology》1999年第3期270-275,共6页北京理工大学学报（英文版）

摘　　要：Aim To solve the time delay problem in the optoelectronic tracking system, improving the tracking accuracy. Methods The discount least square algorithm was applied to forecast the tracking error caused by the 40?ms delay, and the predicting algorithm was improved by the adaptive discount method.Results The tracking errors of the two methods were compared, and an optimal controller with the improved adaptive discount predicting algorithm was adopted for simulation. Conclusion The predicting algorithms, especially the adaptive discount predicting algorithm, can decrease the tracking error greatly, and the desired tracking prediction can be achieved both in the transient state and in the steady state.目的　解决光电跟踪系统中由于时间延迟所带来的量测误差，提高光电跟踪系统的跟踪精度． 方法　使用折扣最小二乘方法预测４０ ｍｓ 延迟所造成的跟踪误差，提出自适应变折扣预测算法． 结果　仿真结果表明改进的预测算法具有更好的补偿效果．带有预测算法的最优控制律能够获得较好的跟踪结果． 结论　自适应变折扣预测算法能够大幅度降低光电跟踪系统的跟踪误差，并保证预测过程的动态性能和稳态性能．

关 键 词：optoelectronic tracking system prediction control optimal control 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]