PID-I controller of charge coupled device-based tracking loop for fast-steering mirror
PID-I controller of charge coupled device-based tracking loop for fast-steering mirror
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DOI：
10.1117/1.3567059
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发表时间：
2011-04
影响因子：
1.3
通讯作者：
T. Tang;Jiaguang Ma;G. Ren
中科院分区：
文献类型：
--
作者：
T. Tang;Jiaguang Ma;G. Ren
提出了一种简单的PID（比例积分微分）-I控制器来改善基于CCD（电荷耦合器件）的快速转向镜控制系统的性能，该控制器包括在PID控制器中串联一个积分器，从而在控制回路中引入两个积分器。主要从闭环稳定性和误差衰减方面给出了将PID-I控制器应用于快速转向镜控制系统的条件。建立了基于CCD的控制回路模型，分析了控制回路的特性。虽然PID-Ⅰ控制器的误差衰减带宽比积分控制器的误差衰减带宽稍小，但在低频处的误差衰减得到了很大的提高。实验结果与理论分析一致。(C)2011年，美国光电仪器工程师学会（SPIE）。[DOI 10.1117/1.3567059]
We propose a simple PID (proportional integral differential)-I controller to improve the performance of a CCD-based (charge coupled device) control system for fast steering mirror, which consists of adding an integrator in series to a PID controller, resulting in two integrators in the control loop. The conditions for implementing the PID-I controller into the control system of the fast steering mirror are presented mainly in terms of the closed-loop stability and error attenuation. A model of CCD-based control loop is made to analyze the characteristics of the control loop. Although the error attenuation bandwidth with PID-I controller is a little smaller than that with an integral controller, the error attenuation at low frequency is greatly enhanced. The experimental results are in accordance with the theoretical analysis. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI:10.1117/1.3567059]