Blind recursive estimation of SIMO channels

Author

Frikel, M. ; Barroso, V. ; Xavier, J.

Author_Institution

Inst. Superior Tecnico, Lisbon, Portugal

fYear

1999

fDate

1999

Firstpage

235

Lastpage

238

Abstract

We present a blind recursive algorithm for the estimation of nonstationary SIMO systems. An adaptive algorithm is developed to track the noise projector, to evaluate the degree of intersymbol interference (ISI), and the channel parameters. This method is also capable of handling abruptly changing channels during the observation interval. We define a new filtering operator that matches this projector with the subspace method. Finally, we relate this work with Capon´s approach and the beamforming method. Simulation results concerning the performance of the developed method and its comparison with the classical subspace method are presented

Keywords

adaptive estimation; approximation theory; array signal processing; covariance matrices; filtering theory; intersymbol interference; recursive estimation; telecommunication channels; Capon´s approach; ISI; SIMO channels; abruptly changing channels; adaptive algorithm; beamforming method; blind recursive algorithm; blind recursive estimation; channel parameters; data covariance matrix; filtering operator; intersymbol interference; noise projector tracking; nonstationary SIMO systems estimation; observation interval; simulation results; subspace method; Adaptive systems; Array signal processing; Blind equalizers; Covariance matrix; Data mining; Eigenvalues and eigenfunctions; Intersymbol interference; Recursive estimation; Signal processing algorithms; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on

Conference_Location

Annapolis, MD

Print_ISBN

0-7803-5599-7

Type

conf

DOI

10.1109/SPAWC.1999.783062

Filename

783062