Title
A Slide Window Variational Adaptive Kalman Filter
Abstract
A slide window variational adaptive Kalman filter is presented in this brief based on adaptive learning of inaccurate state and measurement noise covariance matrices, which is composed of the forward Kalman filtering, the backward Kalman smoothing, and the online estimates of noise covariance matrices. By imposing an approximation on the smoothing posterior distribution of slide window state vectors, the posterior distributions of noise covariance matrices can be analytically updated as inverse Wishart distributions by exploiting the variational Bayesian method, which avoids the fixed-point iterations and achieves good computational efficiency. Simulation comparisons demonstrate that the proposed method has better filtering accuracy and consistency than the existing cutting-edge method.
Year
DOI
Venue
2020
10.1109/TCSII.2020.2995714
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
Keywords
DocType
Volume
Covariance matrices, Microsoft Windows, Kalman filters, Smoothing methods, Probability density function, Noise measurement, Bayes methods, Adaptive filter, Kalman filter, unknown noise statistics, variational Bayesian, Kalman smoother
Journal
67
Issue
ISSN
Citations 
12
1549-7747
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Yulong Huang118621.07
Fengchi Zhu200.34
Guangle Jia352.45
Yonggang Zhang48716.11