Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (3): 667-673.doi: 10.3969/j.issn.1001-506X.2020.03.022

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Robust adaptive filtering based on maximum entropy method and its application

Kaixin LUO(), Meiping WU(), Ying FAN()   

  1. College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
  • Received:2019-07-25 Online:2020-03-01 Published:2020-02-28
  • Supported by:
    国家重点研发计划(2017YFC0601701);国家重点研发计划(2016YFC0303002);湖南省科技计划项目经费资助(2017RS3045);国家自然科学基金(61603401)

Abstract:

Aiming at the problem that the estimation accuracy is degraded as the process noise and measurement noise are affected by impulse noise and becoming non-Gaussian distribution and the noise statistical characteristics is inaccurate, a maximum correntropy variational Bayes adaptive Kalman filter (MCVBAKF) is proposed and applied to the strapdown inertial navigation system./global positioning system (SINS/GPS) integrated navigation system. Firstly, the maximum entropy robust filtering method is used to deal with the outlier problem caused by the impulse noise, and is effectively dealt with. Then, a posterior update is made with the improved variational Bayesian adaptive method, that estimate the noise and converge the estimated value. Finally, the end of this paper, the simulation results show that the MCVBAKF can effectively improve the filtering accuracy and stability in complex environment.

Key words: maximum correntropy method, robust filtering, adaptive filtering, integrated navigation

CLC Number: 

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