Analysis of LOS pointing and rate compensation for two-axis FSM

	Analysis of LOS pointing and rate compensation for two-axis FSM
	Du, Y.; Y. Ding; Y. Xu and J. Li
	2017
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	46 期号:9
摘要	In order to control line-of-sight(LOS) pointing with two-axis fast-steering mirror(FSM) accurately, kinematic equations was set to describe the relationship between LOS pointing and angular displacement of FSM deriving from Snell's law of reflection. LOS pointing equations were decoupled with non-linear correction. LOS pointing error was less than 8 rad for two-axis FSM whose tilt angles were both 20 mrad with beam incidence angle equaling to 45. LOS pointing accuracy rose 75 times compared with linear approximation. To hold the LOS stationary, rate equations were established in terms of vector rate synthesis to compensate the angular rate of the mounted vehicle in inertial space. Angular rate equations for FSM were simplified via Taylor expansion and high order truncation. The residual angular rate of LOS with different beam incidence angles was calculated, which indicated that the residual error of Lywas far greater than Lz. The ratio between residual LOS angular rate and angular rate of mounted vehicle was minimal and less than 0.164% when beam incidence angle was 45, which satisfied the accuracy requirements. The equations deduced suppliy theoretic reference of position and velocity command generation for FSM control system. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
收录类别	ei
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/58887
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Du, Y.,Y. Ding,Y. Xu and J. Li. Analysis of LOS pointing and rate compensation for two-axis FSM[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2017,46(9).
APA	Du, Y.,Y. Ding,&Y. Xu and J. Li.(2017).Analysis of LOS pointing and rate compensation for two-axis FSM.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,46(9).
MLA	Du, Y.,et al."Analysis of LOS pointing and rate compensation for two-axis FSM".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 46.9(2017).

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