A particle filter algorithm of voltage amplitude tracking for electric signal with short-time disturbance

This paper, aiming at voltage amplitude changes proceed tracking study when arisen from lightning waves electric signal by the short-time disturbance, and an algorithm of modified particle filter used in random tracking the voltage amplitude is proposed, which used random process, Bayes method and Monte Carlo - sequential particle filter tracking algorithm and combined of various prior information to improve the accuracy of the signal power tracking. Then through the simulation experiments to prove the effectiveness of this algorithm, thus the nonlinear problem which is electric system tracking voltage signal random disturbance, is resolved.