吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 1217-1224.doi: 10.13229/j.cnki.jdxbgxb201704029

• Orginal Article • Previous Articles     Next Articles

Acceleration feedback control based on tracking differentiator

SHEN Shuai1, 2, ZHANG Bao1, LI Xian-tao1, ZHU Feng1, 2, JIN Chao-qiong1, 2   

  1. 1.Key Laboratory of Airborne Optical Imaging and Measurement, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
    2.University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-05-12 Online:2017-07-20 Published:2017-07-20

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Abstract: In order to improve the noise immunity of airborne optoelectronic stabilization platform and save cost, high-gain acceleration feedback by utilizing the tracking differentiator is studied based on current feedback, speed feedback and position feedback on a traditional platform. Compared with the traditional differential acceleration feedback system, the acceleration feedback system based on the tracking differentiator reduces the sensitivity to noise interference. The stabilization platform is tested with one degree, 0~2.5 Hz sinusoidal interference on a flight simulator. Results show that, compared with the traditional speed platform feedback system, the acceleration feedback system based on the tracking differentiator can reduce the overshoot by 4.9%, increase LOS stabilization accuracy at least by 63.4% and improve the transition process of the platform greatly. Besides, the servo system has simple structure, better generality and higher practical value.

Key words: automatic control technology, noise immunity, acceleration feedback, tracking differentiator, LOS stabilization accuracy

CLC Number: 

  • TP273
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