A fast quasi-Monte Carlo-based particle filter algorithm

被引:1
作者
Zhao L.-L. [1 ]
Ma P.-J. [1 ]
Su X.-H. [1 ]
机构
[1] School of Computer Science and Technology, Harbin Institute of Technology
来源
Zidonghua Xuebao/Acta Automatica Sinica | 2010年 / 36卷 / 09期
关键词
Particle filters; Quasi-Monte Carlo (QMC); Resampling algorithm; Sample impoverishment;
D O I
10.3724/SP.J.1004.2010.01351
中图分类号
学科分类号
摘要
Particle filters have a high computational complexity when using quasi-Monte Carlo (QMC) methods, and are subject to the sample impoverishment caused by resampling step. To solve these problems, a new particle filter algorithm based on QMC method is proposed. It generates the randomized QMC points after sample importance, and then transforms them into some independent sub-spaces, whose kernels are the particles with heavy weights, to avoid predicting the sampling space and preserve the diversity of samples. The simulation results suggest that the algorithm can escape successfully from the sample impoverishment, provide more accurate estimators than the Monte Carlo (MC) method, meanwhile has a computational cost similar to the general particle filter. Copyright © 2010 Acta Automatica Sinica. All rights reserved.
引用
收藏
页码:1351 / 1356
页数:5
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