PID-I controller of charge coupled device-based tracking loop for fast-steering mirror

Tao Tang; Jiaguang Ma; Ren Ge

doi:10.1117/1.3567059

1 April 2011 PID-I controller of charge coupled device-based tracking loop for fast-steering mirror

Tao Tang, Jiaguang Ma, Ren Ge

Author Affiliations +

Optical Engineering, Vol. 50, Issue 4, 043002 (April 2011). https://doi.org/10.1117/1.3567059

Abstract

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.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Tao Tang, Jiaguang Ma, and Ren Ge "PID-I controller of charge coupled device-based tracking loop for fast-steering mirror," Optical Engineering 50(4), 043002 (1 April 2011). https://doi.org/10.1117/1.3567059

Published: 1 April 2011

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