Research on six degrees of freedom compound control technology for improving photoelectric pod pointing accuracy

	Research on six degrees of freedom compound control technology for improving photoelectric pod pointing accuracy
	Zhou, J. P.; Y. Li; J. Chen; L. Nian and H. B. Zhang
	2017
发表期刊	Optical Review
卷号	24 期号:4
摘要	High line-of-sight (LOS) pointing precision is a prerequisite for improving the laser confrontation capability of a photoelectric interference pod. In a traditional photoelectric pod, the time delay in TV tracking reduces the system phase margin, system stability and LOS pointing precision. In view of this deficiency, a normalized LMS algorithm is introduced to compensate for the TV camera delay in the inner gimbal position loop of a two-axis and four-gimbal structure, which can allow a pod to avoid system phase margin reduction. Meanwhile, a fast steering mirror (FSM) system is used to improve the LOS pointing precision. First, this paper proposes a normalized LMS algorithm. Second, a compound control structure, with an outer gimbal analog controller and an inner gimbal lag-lead controller, is designed. Finally, the FSM beam control precision is analyzed. The experimental results show that the normalized LMS algorithm yields almost no delay; moreover, the azimuth and pitch beam control accuracies are greater by a factor of 15 and 3, respectively, compared with those of a conventional photoelectric pod.
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59493
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhou, J. P.,Y. Li,J. Chen,et al. Research on six degrees of freedom compound control technology for improving photoelectric pod pointing accuracy[J]. Optical Review,2017,24(4).
APA	Zhou, J. P.,Y. Li,J. Chen,&L. Nian and H. B. Zhang.(2017).Research on six degrees of freedom compound control technology for improving photoelectric pod pointing accuracy.Optical Review,24(4).
MLA	Zhou, J. P.,et al."Research on six degrees of freedom compound control technology for improving photoelectric pod pointing accuracy".Optical Review 24.4(2017).

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