Compensating for some errors related to time delay in a charge-coupled-device-based fast steering mirror control system using a feedforward loop
文献类型:期刊论文
作者 | Tang, Tao; Ma, Jiaguang; Ren, Ge; Fu, Chenyu |
刊名 | OPTICAL ENGINEERING
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出版日期 | 2010-07-10 |
卷号 | 49期号:7 |
关键词 | feedforward control time delay two closed loops charge-coupled-device-based instability |
英文摘要 | In many control systems, the most effective method to improve the performance of the closed-loop system is by enhancing the gain of the control system, which results in a wide control bandwidth. However, in the control system of a charge-coupled-device-based tracking loop for a fast steering mirror, the bandwidth of the closed loop is greatly limited by the large time delay of the TV tracker. Additionally, the time delay leads to instability of the system when the closed-loop system has high gain. We propose a new feedforward control to compensate some errors related to the time delay of the tracker, meanwhile improving the performance of the closed-loop fast steering mirror system. The control structure we propose includes two closed loops; a tracking loop and a fast position loop. The fast position loop is produced using an eddy current sensor, and the tracking loop is the outer loop, enveloping the fast position loop. The feedforward signal is estimated from the signal of the eddy current sensor and the TV tracker, which is added to the input of the fast position loop. Experimental results show that our proposed feedforward system can effectively enhance trajectory tracking and pointing performance. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3467453] |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Optics |
研究领域[WOS] | Optics |
关键词[WOS] | TRACKING |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000280522800006 |
公开日期 | 2015-12-24 |
源URL | [http://ir.ioe.ac.cn/handle/181551/3356] ![]() |
专题 | 光电技术研究所_光电技术研究所被WoS收录文章 |
作者单位 | Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China |
推荐引用方式 GB/T 7714 | Tang, Tao,Ma, Jiaguang,Ren, Ge,et al. Compensating for some errors related to time delay in a charge-coupled-device-based fast steering mirror control system using a feedforward loop[J]. OPTICAL ENGINEERING,2010,49(7). |
APA | Tang, Tao,Ma, Jiaguang,Ren, Ge,&Fu, Chenyu.(2010).Compensating for some errors related to time delay in a charge-coupled-device-based fast steering mirror control system using a feedforward loop.OPTICAL ENGINEERING,49(7). |
MLA | Tang, Tao,et al."Compensating for some errors related to time delay in a charge-coupled-device-based fast steering mirror control system using a feedforward loop".OPTICAL ENGINEERING 49.7(2010). |
入库方式: OAI收割
来源:光电技术研究所
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