XIA Nan, QIU Tian-shuang, LI Jing-chun, et al. A Nonlinear Filtering Algorithm Combining the Kalman Filter and the Particle Filter[J]. Acta Electronica Sinica, 2013, 41(1): 148-152.
XIA Nan, QIU Tian-shuang, LI Jing-chun, et al. A Nonlinear Filtering Algorithm Combining the Kalman Filter and the Particle Filter[J]. Acta Electronica Sinica, 2013, 41(1): 148-152. DOI: 10.3969/j.issn.0372-2112.2013.01.026.
A nonlinear filtering algorithm is proposed based on the Kalman filter and the particle filter.The method can provide significant performance for dynamic nonlinear system which is consist of linear state equation and nonlinear measurement equation.Firstly
the particle filter is utilized for initial estimation of the state variables
and then the Kalman filter is performed.The Cramer-Rao Bound is derived for the nonlinear model.Computation complexity analysis and numerical simulations demonstrate that the proposed algorithm has the same complexity as the standard particle filter
but the estimation accuracy is higher than the standard particle filter and the extended Kalman filter.The estimation error is even lower than the Cramer-Rao Bound of the system model.