Presentation 2000/3/16
Robust Identification of Nonlinear System by Reduced Rank Volterra Filter
Tomohiro Sekiguchi, Isao Yamada, Kohichi Sakaniwa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we propose the reauced rank polynomial filter (RRPE), a vector valued polynomial operator whose dominant kernel (coefficient matrix) has its rank restricted arbitrarily. It is shown that a drastic reduction of computational complexity is achieved by the rank reduction of the dominant kernel. More importantly, the rank reduction can make the polynomial filter more robust to noise by restricting the influences of higher order multiplications of noise within the reduced column space of the dominant kernel. The main theorem of the paper presents an explicit formula to determine recursively all the coefficient matrices of the optimal RRPF named the reduced rank Volterra filter (RRVF) that minimizes the mean square error (MSE) between its output vector eandom variable and the desired vector random variable to be approximated. A numerical example indicates that the proposed reduced rank Volterra filter (RRVF) realizes an ideal trade-off between the computational complexity and the estimation accuracy.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Volterra filter / Reduced rank Volterra filter / Nonlinear filter / Higher order statistics / Robust estimation
Paper # CAS99-122,DSP99-192,CS99-163
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Conference Information
Committee DSP
Conference Date 2000/3/16(1days)
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Paper Information
Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Robust Identification of Nonlinear System by Reduced Rank Volterra Filter
Sub Title (in English)
Keyword(1) Volterra filter
Keyword(2) Reduced rank Volterra filter
Keyword(3) Nonlinear filter
Keyword(4) Higher order statistics
Keyword(5) Robust estimation
1st Author's Name Tomohiro Sekiguchi
1st Author's Affiliation Department of Electrical and Electronic Engineering Tokyo Institute of Technology()
2nd Author's Name Isao Yamada
2nd Author's Affiliation Department of Electrical and Electronic Engineering Tokyo Institute of Technology
3rd Author's Name Kohichi Sakaniwa
3rd Author's Affiliation Department of Electrical and Electronic Engineering Tokyo Institute of Technology
Date 2000/3/16
Paper # CAS99-122,DSP99-192,CS99-163
Volume (vol) vol.99
Number (no) 695
Page pp.pp.-
#Pages 6
Date of Issue