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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (6): 1235-1243.doi: 10.3969/j.issn.1000-1093.2019.06.014

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Optimal Control of Supercavitating Vehicles Based on Unscented Kalman Filter

ZHANG Chengju,WANG Cong, CAO Wei, WANG Jinqiang   

  1. (School of Astronautics, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China)
  • Received:2018-08-01 Revised:2018-08-01 Online:2019-08-14

Abstract: An optimal control method based on unscented Kalman filter is proposed to solve the adverse effects due to environmental and measurement noises. Based on dynamic model of supercavitating vehicle, the environmental and measurement noises are added to the equation of state. An optimal controller without filter and with unscented Kalman filter was simulated and analyzed. Simulated results show that the tracking error of supercavitating vehicle is large,and its movement is extremely unstable under the disturbance of environmental and measurement noises. Under the action of the unscented Kalman filter, the tracking error of supercavitating vehicle is reduced significantly and the supercavitating vehicle reaches a full package state in a short period of time. It has better signal processing results. Key

Key words: supercavitatingvehicle, unscentedKalmanfilter, optimalcontrol, noise, track

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