Study on Robust Control Technology of Opto-Electronic Tracking System

Abstract:

Classic control algorithm can improve dynamic performance of opto-electronic tracking system, but the tracking system often has little robust performance. From the standpoint of inproving robust performance, modern robust control technology was adopted to design the controller of opto-electronic tracking system in this paper. On the basis of considering the system tracking precision requirement and main disturbance, the mathematical model of the system augmented objict was established. By repeatly testing, the suitable weighted functions were selected. Finally, the robust controller of opto-electronic tracking system was designed by synthesis method of modern robust control theory. The simulation result shows that the adjusting time of the system is 0.3S, and it can satisfy the requirements of the tracking speed. Robust controller has improved the system dynamic response characteristics and makes the system fast and no overshoot, and the opto-electronic tracking system has stronger robust stability and robust performance.

• Periodical: Applied Mechanics and Materials (Volume 273)
• Pages: 636-640
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.273.636
• Online since: January 2013
• Authors: Ming Qiu Li, Rong Chun Sun
• Keywords: Opto-Electronic Tracking System, Robust Control, Robust Performance, γ Synthesis Method

References

[1] T. Tolker-nielsen, G. Oppenhause: In-orbit test result of an operational optical inter-satellite link between ARTEMIS and SPOT4, SILEX. Proc. SPIE Vol. 4635 (2002), pp.6-20.

DOI: 10.1117/12.464105

[2] Tzung-Hsien Ho, Stuart D, Milner, Christopher C Davis: Fully optical real-time pointing, acquisition and tracking system for free space optical link, Proc. SPIE Vol. 5712( 2005), pp.81-92.

DOI: 10.1117/12.590982

[3] Toyoda Masahiro: Acquisition and tracking control of satellite-borne laser communication systems and simulation of downlink fluctuations, Optical Engineering No. 45 (2006), pp.4-12.

DOI: 10.1117/1.2183041

[4] Mei Shengwei, Shen Tielong, Liu Kangzhi, in: Theory and Application of Modern Robust Control, chapter, 4, Qsinghua University Press (2008 ).

[5] Luo Tong: The research on acquisition and tracking technologies of ATP system in optical intersatellite communication, Electrical and technology univercity, PP. 95~1002, (2004).