Title :
A new pencil criterium for multichannel blind deconvolution in data communication systems
Author :
Zazo, Santiago ; Borrallo, José Manuel Páez
Author_Institution :
Univ. Alfonso X El Sabio, Madrid, Spain
Abstract :
It is well known that blind channel deconvolution enables the receiver to equalize the channel simply by analyzing the received digital signal. Much of the work in 1990s faces the challenge presented by multiple-output systems, exploiting cyclostationarity properties and multivariate formulation of the incoming data. Our proposal is twofold: on one hand, we develop a theoretical analysis of a new blind channel deconvolution scheme by the exploitation of some shifting properties of the autocorrelation matrices of the source, in order to propose an appropriate cost function; on the other hand, an efficient programming is considered based on a generalized Rayleigh quotient formulation by using a conjugate gradient algorithm
Keywords :
conjugate gradient methods; convergence of numerical methods; data communication; deconvolution; equalisers; matrix algebra; telecommunication channels; autocorrelation matrices; channel equalisation; conjugate gradient algorithm; convergence; cost function; cyclostationarity properties; data communication systems; digital signal; generalized Rayleigh quotient; multichannel blind deconvolution; multiple-output systems; multivariate formulation; pencil criterium; programming; receiver; shifting properties; Algorithm design and analysis; Blind equalizers; Cost function; Data communication; Deconvolution; Finite impulse response filter; Proposals; Signal analysis; Signal processing algorithms; Telecommunications;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.681624