DocumentCode :
1434749
Title :
Local weight mean comparison scheme and architecture for high-speed particle filters
Author :
Zheng, Nanning ; Pan, Yongping ; Yan, Xiaodong ; Huan, Ruohong
Author_Institution :
Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China
Volume :
47
Issue :
2
fYear :
2011
fDate :
1/1/2011 12:00:00 AM
Firstpage :
142
Lastpage :
144
Abstract :
A local weight mean comparison scheme for high-speed particle filters along with its corresponding architecture is presented. The proposed scheme arranges a particle index by a comparison between the relevant weight and the current mean weight so that as many high-weighted particles as possible can be firstly accessed in the next sampling step. It breaks the sequential nature of resampling and basically maintains the same accuracy as that of the systematic resampling (SR) scheme. The proposed architecture pipelines the current resampling step and the next sampling step, and improves the speed by times compared with generic architectures based on the SR scheme and the residual systematic resampling scheme.
Keywords :
particle filtering (numerical methods); pipeline processing; sampling methods; high-speed particle filter; high-weighted particle; local weight mean comparison scheme; pipeline architecture; residual systematic resampling scheme; sampling;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2010.3375
Filename :
5700024
Link To Document :
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