Design of laser projected system for Rayleigh guide star

	Design of laser projected system for Rayleigh guide star
	Liu, C.; Z. Cao; Q. Mu; L. Hu and L. Xuan
	2016
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	45 期号:8
摘要	The pitching axis is the main axis of a satellite camera and is used to control the pitch posture of satellite cameras. A control strategy based on extended state observer (ESO) is designed to obtain a fast response speed and highly accurate pitching axis control system and eliminate disturbances during the adjustment of pitch posture. First, a sufficient condition of stabilization for ESO is obtained by analyzing the steady-state error of the system under step input. Parameter tuning and disturbance compensation are performed by ESO. Second, the ESO of speed loop is designed by the speed equation of the pitching axis of satellite cameras. The ESO parameters are obtained by pole assignment. By ESO, the original state variable observes the motor angular speed and the extended state variable observes the load torque. Therefore, the external load disturbances of the control system are estimated in real time. Finally, simulation experiments are performed for the system on the cases of nonload starting, adding external disturbances on the system suddenly, and the load of system changing suddenly. Simulation results show that the control strategy based on ESO has better stability, adaptability, and robustness than the PI control strategy.
文章类型	期刊
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/181722/57066
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu, C.,Z. Cao,Q. Mu,et al. Design of laser projected system for Rayleigh guide star[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2016,45(8).
APA	Liu, C.,Z. Cao,Q. Mu,&L. Hu and L. Xuan.(2016).Design of laser projected system for Rayleigh guide star.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,45(8).
MLA	Liu, C.,et al."Design of laser projected system for Rayleigh guide star".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 45.8(2016).

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