Multirate multisensor distributed data fusion algorithm for state estimation with cross-correlated noises

Yulei Liu, Liping Yan*, Yuanqing Xia, Mengyin Fu, Bo Xiao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

18 Citations (Scopus)

Abstract

This paper is concerned with the optimal state estimation problem under linear dynamic systems when the sampling rates of different sensors are different. For simplicity, we consider two sensors where one's sampling rate is three times as much as the other's. The noises of different sensors are cross-correlated and are also coupled with the system noise of the previous step. By use of the projection theorem and induction hypothesis repeatedly, a distributed fusion estimation algorithm is derived. The algorithm is proven to be distributed optimal in the sense of Linear Minimum Mean Square Error(LMMSE) and can effectively reduces the oscillation existed in the sequential algorithm. Finally, a numerical example is shown to illustrate the effectiveness of the proposed algorithm.

Original languageEnglish
Title of host publicationProceedings of the 32nd Chinese Control Conference, CCC 2013
PublisherIEEE Computer Society
Pages4682-4687
Number of pages6
ISBN (Print)9789881563835
Publication statusPublished - 18 Oct 2013
Event32nd Chinese Control Conference, CCC 2013 - Xi'an, China
Duration: 26 Jul 201328 Jul 2013

Publication series

NameChinese Control Conference, CCC
ISSN (Print)1934-1768
ISSN (Electronic)2161-2927

Conference

Conference32nd Chinese Control Conference, CCC 2013
Country/TerritoryChina
CityXi'an
Period26/07/1328/07/13

Keywords

  • Cross-correlated noises
  • Distributed data fusion
  • Multirate
  • State estimation

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