Title :
Unscented Kalman filter with fading wireless channel
Author :
Li Li ; Hongbo Li ; Hongjiu Yang ; Zhixin Liu
Author_Institution :
Inst. of Electr. Eng., Yanshan Univ., Qinhuangdao, China
Abstract :
This paper considers the error behavior of the discrete-time unscented Kalman filter connected to the general nonlinear system via a wireless sensor. The measurements are transmitted through a noisy fading wireless channel where both transmission failure and signal fluctuation are considered. Sufficient conditions of statistical convergence property for the estimation error covariance is established. It is shown that the expected error covariance with respect to fading process is bounded and converges to a steady state value if the system satisfies some assumptions. Numerical example is given to illustrate the effectiveness of the developed techniques.
Keywords :
Kalman filters; covariance matrices; discrete time systems; fading channels; wireless sensor networks; discrete-time unscented Kalman filter; estimation error covariance; expected error covariance; general nonlinear system; noisy fading wireless channel; signal fluctuation; statistical convergence property; transmission failure; wireless sensor; Covariance matrices; Fading; Kalman filters; Nonlinear systems; Stability analysis; Wireless communication; Wireless sensor networks; Nonlinear stochastic systems; fading channel; stochastic stability; unscented Kalman filtering;
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an