Combined line-of-sight error and angular position to generate feedforward control for a charge-coupled device-based tracking loop

Tang Tao; Cai Huaxiang; Huang YongmeiRen Ge

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Combined line-of-sight error and angular position to generate feedforward control for a charge-coupled device-based tracking loop

机译：Combined line-of-sight error and angular position to generate feedforward control for a charge-coupled device-based tracking loop

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摘要

A feedforward control based on data fusion is proposed to enhance closed-loop performance. The target trajectory as the observed value of a Kalman filter is recovered by synthesizing line-of-sight error and angular position from the encoder. A Kalman filter based on a Singer acceleration model is employed to estimate the target velocity. In this control scheme, the control stability is influenced by the bandwidth of the Kalman filter and time misalignment. The transfer function of the Kalman filter in the frequency domain is built for analyzing the closed loop stability, which shows that the Kalman filter is the major factor that affects the control stability. The feedforward control proposed here is verified through simulations and experiments. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)

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来源
《Optical Engineering》 |2015年第10期|105107-1-105107-5|共5页
作者
Tang Tao; Cai Huaxiang; Huang YongmeiRen Ge;
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作者单位

Chinese Acad Sci, Key Lab Opt Engn, Chengdu 610209, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;光学仪器;
关键词
feedforward control; charge-coupled device based; time delay; line-of-sight error; Kalman filter;

Combined line-of-sight error and angular position to generate feedforward control for a charge-coupled device-based tracking loop

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