High-precision scanner control system using online learning

K. Aoki; Y. Yanagita; T. Kurii

doi:10.1117/12.884454

13 May 2011 High-precision scanner control system using online learning

K. Aoki, Y. Yanagita, T. Kurii

Proceedings Volume 8052, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXV; 80520V (2011) https://doi.org/10.1117/12.884454
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

We have developed a high-precision scanner control system, which is used on earth observation satellites. This control system keeps high angular precision with ultra smooth rotation. We designed a feedback controller consists of a rate loop for rotation-speed control and a position loop for angular control. Adding a feedforward controller using cyclic memory, 1st order rotational synchronizing disturbance caused by eccentric load has been compressed over 50 dB. An online learning controller sustains long-time robustness by suppressing undesired addition to a cyclic memory. The proposed control system maintains high pointing accuracy with a standard deviation of 0.003 degree at 80 rpm.

Citation Download Citation

K. Aoki, Y. Yanagita, and T. Kurii "High-precision scanner control system using online learning", Proc. SPIE 8052, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXV, 80520V (13 May 2011); https://doi.org/10.1117/12.884454

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