Journal
NEUROCOMPUTING
Volume 223, Issue -, Pages 12-17Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.neucom.2016.10.026
Keywords
Adaptive Kalman filter; Unknown process noise covariance matrix; Recursive covariance estimating; Stability analysis
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Funding
- National Natural Science Foundation for Outstanding Youth [61422102]
- Special Fund for Basic Research on Scientific Instruments of the National Natural Science Foundation of China [61127004]
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In this paper, a new adaptive Kalman filter algorithm is proposed to cope with the unknown a priori covariance matrix of process noise for the linear discrete-time systems. The process noise covariance matrix is estimated by the proposed algorithm based on the measurement sequence. Accordingly, we construct a new measurement sequence to sequentially estimate process covariance matrix in terms of the relationship between the measurement and process noise sequence. Then the stability of the proposed algorithm is analyzed. The algorithm shows a simple recursive form and great performance enhancement of application. Finally, the navigation simulation results are presented to illustrate the validity and practicality of the proposed algorithm.
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