Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (6): 1366-1371.doi: 10.3969/j.issn.1001-506X.2020.06.21

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Application of USQUE based on PSO in attitude estimation of integrated navigation

Xu LYU1(), Baiqing HU1(), Yongbin DAI2(), Renjie ZHAO1()   

  1. 1. College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
    2. School of Electrical Engineering, Liaoning University of Technology, Jinzhou 121001, China
  • Received:2019-11-08 Online:2020-06-01 Published:2020-06-01
  • Supported by:
    国家自然科学基金(61703419)

Abstract:

Aiming at the problem that the noise covariance matrix parameters of the unscented quaternion estimation (USQUE) in integrated navigation attitude estimation cannot be given accurately, an USQUE based on particle swarm optimization (PSO-USQUE) algorithm is proposed. PSO is used to optimize the noise covariance matrices Q and R, and the filtering prior conditions such as the optimized noise covariance matrix are obtained. In order to verify the effectiveness of the algorithm proposed, simulation tests and micro-electro-mechonical system (MEMS) inertial navigation system/GPS vehicle tests are performed separately. The experimental results show that the PSO-USQUE algorithm has higher accuracy than the conventional algorithm for the attitude estimation problem of USQUE.

Key words: particle swarm optimization (PSO), quaternion, Kalman filter, integrated navigation, attitude estimation

CLC Number: 

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