Novel estimation algorithm design for FIR model with time-varying channel

Author

Hidaka, Koichi ; Ohmori, Hiromitsu ; Sano, Akira

Author_Institution

Tokyo Metropolitan Coll. of Aeronaut. Eng., Tokyo, Japan

fYear

2001

fDate

4-7 Sept. 2001

Firstpage

2808

Lastpage

2811

Abstract

A novel estimation algorithm which assures stability of a discrete FIR system with time-varying dynamics is derived by using loop transformation and the small-gain theorem. The proposed estimation algorithm incorporates an internal model of unknown dynamics for the time-varying channel. The stability condition is given by designing the estimation algorithm based on the small-gain theorem instead of the passivity theorem. The effectiveness of the proposed algorithm in numerical simulation is validated by comparing it with the conventional LMS approach.

Keywords

FIR filters; discrete systems; stability; time-varying systems; FIR model; discrete FIR system stability; estimation algorithm design; internal model; loop transformation; numerical simulation; small-gain theorem; time-varying channel; time-varying dynamics; unknown dynamics; Channel estimation; Finite impulse response filters; Heuristic algorithms; Least squares approximations; Noise; Signal processing algorithms; Stability analysis; Identification Methods; Signal Processing; Signal and Systems; Stabilization; Time Varying and Periodic Systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 2001 European

Conference_Location

Porto

Print_ISBN

978-3-9524173-6-2

Type

conf

Filename

7076356