Design of Optimum Controller of APT Fine Tracking Control System

Ming Qiu Li; Shu Hua Jiang

doi:10.4028/www.scientific.net/AMR.712-715.2738

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Design of Optimum Controller of APT Fine Tracking...

Design of Optimum Controller of APT Fine Tracking Control System

Abstract:

APT (Acquisition, Pointing, and Tracking) system of space laser communication adopts compound axis structure; it consists of coarse tracking and fine tracking system. Its response speed and tracking precision mainly rests with the fine tracking system. Traditional PID control algorithm often is used in APT fine tracking system. In order to improve the dynamic performance of the system and decrease the tracking error, optimum control technology was adopted in this paper. On the basis of considering the system dynamic performance requirements and tracking precision requirement, optimum controller was designed. The simulation result shows that the bandwidth of APT fine tracking system is up to 1310 Hz, and the stable state error is less than 0.002. Compared with PID control, optimum control can improve the tracking performance of system.

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Periodical:

Advanced Materials Research (Volumes 712-715)

Pages:

2738-2741

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.712-715.2738

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Online since:

June 2013

Authors:

Ming Qiu Li, Shu Hua Jiang

Keywords:

APT, Fine Tracking System, Optimum Control, PID Control

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