Title
A Novel Fifth-Degree Cubature Kalman Filter Approaching the Lower Bound on the Number of Cubature Points.
Abstract
In this paper, a novel fifth-degree cubature Kalman filter, which approaches the lower bound on the number of cubature points, is proposed to reduce the computational complexity while maintaining the fifth-degree filtering accuracy. The Gaussian weighted integral of a nonlinear function is approximated using a numerical cubature rule, whose number of cubature points needed is only one more than the theoretical lower bound, and the filter is deduced under the Bayesian filtering framework by this rule. Furthermore, a square-root version of the proposed fifth-degree cubature Kalman filter is given, and it acquires higher computational efficiency and ensures the numerical stability of the filter. Three numerical simulations are taken, and the results show that the proposed filters maintain the fifth-degree filtering accuracy, while needing the least amount of computation and achieving the best real-time performance.
Year
DOI
Venue
2018
10.1007/s00034-017-0723-2
CSSP
Keywords
Field
DocType
Bayesian filtering,Cubature Kalman filter,Fifth-degree accuracy,Cubature points
Nonlinear system,Control theory,Upper and lower bounds,Algorithm,Filter (signal processing),Gaussian,Cubature kalman filter,Numerical stability,Mathematics,Computation,Computational complexity theory
Journal
Volume
Issue
ISSN
37
9
0278-081X
Citations 
PageRank 
References 
0
0.34
7
Authors
4
Name
Order
Citations
PageRank
Zhaoming Li1122.97
Yang, W.231.43
Dan Ding312.05
Yurong Liao411.03