Compensating Unknown Time-Varying Delay in Opto-Electronic Platform Tracking Servo System

被引：6
|
作者：
Xie, Ruihong [1 ,2 ]
Zhang, Tao [2 ]
Li, Jiaquan [2 ]
Dai, Ming [2 ]
机构：
[1] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Airborne Opt Imaging & Measurement, Changchun 130033, Peoples R China
来源：
SENSORS | 2017年 / 17卷 / 05期
基金：
中国国家自然科学基金;
关键词：
miss-distance; unknown time-varying delay; Markovian process; feed-forward forecasting; opto-electronic platform; tracking servo system; robust H infinity controller; MANEUVERING TARGET TRACKING; MARKOVIAN JUMP SYSTEMS; MIXED H-INFINITY; SINGULAR SYSTEMS; NONLINEAR-SYSTEMS; CONTROLLER; STABILITY; DESIGN; FEEDBACK; FILTERS;
D O I：
10.3390/s17051071
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper investigates the problem of compensating miss-distance delay in opto-electronic platform tracking servo system. According to the characteristic of LOS (light-of-sight) motion, we setup the Markovian process model and compensate this unknown time-varying delay by feed-forward forecasting controller based on robust H infinity control. Finally, simulation based on double closed-loop PI (Proportion Integration) control system indicates that the proposed method is effective for compensating unknown time-varying delay. Tracking experiments on the opto-electronic platform indicate that RMS (root-mean-square) error is 1.253 mrad when tracking 10 degrees 0.2 Hz signal.
引用
收藏
页数：12
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