Application of acceleration feedback control based on Kalman filter in wireless laser communication system

Zhengxi Wang; Wei Wang; Zhenchong Xing; Zhe Li; Mengqi Shao; Kaiqiang Wang; Dongjie Wang; Shaobo Li; Qingsong Luo

doi:10.1117/12.2648882

14 October 2022 Application of acceleration feedback control based on Kalman filter in wireless laser communication system

Zhengxi Wang, Wei Wang, Zhenchong Xing, Zhe Li, Mengqi Shao, Kaiqiang Wang, Dongjie Wang, Shaobo Li, Qingsong Luo

Author Affiliations +

Proceedings Volume 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022); 123431W (2022) https://doi.org/10.1117/12.2648882
Event: 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 2022, Qingdao, China

Abstract

An acceleration feedback control strategy based on Kalman filter is proposed to further improve the stability accuracy of the airborne laser communication terminals. Firstly, a Kalman filter is designed according to the servo system model of the airborne platform. The Kalman filter is used to obtain the optimal estimation of the system speed and acceleration. Then, the velocity and acceleration estimates of Kalman filter output are used as feedback signals of the speed loop and acceleration loop of the controlled object respectively. Finally, the experimental results show that the servo system with acceleration feedback control can suppress the disturbance torques of different frequencies within 2.5Hz, and the disturbance isolation is better than 25dB. Compared with the traditional single speed loop control scheme, the overshoot of step response is reduced by at least 40%. The introduction of acceleration loop into traditional speed loop control system can effectively improve the servo control performance of airborne laser communication terminals, and has high engineering application value.

Citation Download Citation

Zhengxi Wang, Wei Wang, Zhenchong Xing, Zhe Li, Mengqi Shao, Kaiqiang Wang, Dongjie Wang, Shaobo Li, and Qingsong Luo "Application of acceleration feedback control based on Kalman filter in wireless laser communication system", Proc. SPIE 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 123431W (14 October 2022); https://doi.org/10.1117/12.2648882

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