A modified Kalman filter algorithm for fractional system under Levy noises

摘要

This paper considers the filter designing problem for discrete linear fractional order systems with non-Gaussian noises. Taking both the system noise and the measurement noise as Levy noises instead of Gaussian white noises, through the approximating transformation for Levy noises, a modified Kalman filter algorithm is proposed for discrete linear fractional order system. The developed results can be used to estimate the system states for discrete linear fractional order system under non-Gaussian Levy noises with satisfactory accuracy, which are more general than some existing results. Finally, simulation results ate provided to verify and illustrate the effectiveness of the obtained results. (C) 2015 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.