Robust transcale decentralised estimation fusion for multisensor systems based on wavelet packet decomposition. Issue 8 (1st May 2014)

• Record Type: Journal Article
• Authors: Zhao, Lin; Jia, Yingmin; Xie, Yongchun
• Is Part Of: IET control theory & applications. Volume 8:Issue 8(2014)
• Page Start: 585
• Page End: 597
• Publication Date: 2014-05-01
• Subjects: sensor fusion -- wavelet transforms -- Haar transforms -- filtering theory; robust transcale decentralised estimation fusion -- multisensor system -- wavelet packet decomposition -- standard state‐space model -- coarsest scale decomposition layer -- Haar WPD -- decentralised H∞ filtering fusion; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2013.0285
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : In this study, an effective wavelet packet decomposition (WPD)‐based robust transcale decentralised estimation fusion algorithm is proposed for multisensor systems. The standard state‐space models of wavelet packet coefficients at the coarsest scale decomposition layer are established by Haar WPD. Based on the above models, the decentralised H ∞ filtering fusion formulae is employed to obtain the fusion estimates at the coarsest scale decomposition layer, and these estimates are then used to reconstruct the estimates at the finest scale by an inverse WPD transform. At last, the feasibility analysis of the proposed algorithm is given. Two simulation examples are presented to illustrate the effectiveness of the proposed algorithm.