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长春光学精密机械与物... [1]
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会议论文 [1]
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2011 [1]
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Stabilization and tracking precision improved based on disturbance observer (EI CONFERENCE)
会议论文
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
Sun G.
;
Zhu M.
;
Jia H.
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提交时间:2013/03/25
Based on the kinematics of semi-strapdown seeker
the framework coordinate of the semi-strapdown seeker is established and the optical axis stabilization equation of semistrapdown seeker is deduced based on product of exponential (POE) formula. The stabilization control principle block diagram of semi-strapdown seeker is shown based on the stabilization equation. The main influence factors of the stability precision are pointed out
such as friction disturbance
velocity measurement noise and missile disturbance. For the sake of improving the stabilization precision and tracking precision
disturbance observer was proposed in the inner loop of semi-strapdown seeker servo-control system. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation
and optical axis stabilization precision and tracking precision are greatly improved. 2011 IEEE.
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