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题名:
Acceleration feedback of a CCD-based tracking loop for fast steering mirror
作者: Tang, Tao1,2; Huang, Yongmei1; Fu, Chengyu1; Liu, Shunfa1
刊名: OPTICAL ENGINEERING
出版日期: 2009
卷号: 48, 期号:1
关键词: acceleration feedback ; low sampling rate ; time delay ; bandpass fast steering mirror
文章类型: Article
英文摘要: In the control system of a CCD-based tracking loop for a fast steering mirror (FSM), the most effective method often employed to improve pointing performance is to increase high gain of the control system for a high bandwidth, which, however, usually suffers a great deal from a low CCD sampling rate and the mechanics of the FSM. Moreover, the amount of time delay engendered by sampling and data processing can significantly reduce the performance of a closed-loop system. Therefore, a tentative approach to the implementation of a CCD-based tracking control system with acceleration feedback is proposed. In theory, the position open loop is made of double integrators with a high bandwidth of the acceleration feedback loop; in fact, however, the acceleration open loop of the FSM response includes a quadratic differential, and it is very difficult to compensate a quadratic differential with an integral algorithm. To solve this problem, a novel acceleration closed system such as a bandpass filter is proposed. The position is reconstructed into a simple first-order filter instead of a third-order control system. In addition experimental results show that the acceleration feedback proposed here can effectively enhance the bandwidth of the closed-loop system and its trajectory tracking and pointing performance. (C) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3065500]
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000264114400004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3266
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Tang, Tao,Huang, Yongmei,Fu, Chengyu,et al. Acceleration feedback of a CCD-based tracking loop for fast steering mirror[J]. OPTICAL ENGINEERING,2009,48(1).
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