Blind spatio-temporal equalization and impulse response estimation for MIMO channels using a Godard cost function
- 1 January 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Signal Processing
- Vol. 45 (1) , 268-271
- https://doi.org/10.1109/78.552228
Abstract
Equalization and estimation of the matrix impulse response function of multiple-input multiple-output (MIMO) digital communications channels in the absence of any training sequences is considered. An iterative, Godard (1980) cost-based approach is considered for spatio-temporal equalization and MIMO impulse response estimation. Stationary points of the cost function are investigated with particular attention to the case when finite-length equalizers exist. Sufficient conditions are derived under which all stable local minima correspond to desirable minima. The inputs are extracted and cancelled one by one. The matrix impulse response is then obtained by cross-correlating the extracted inputs with the observed outputs. Identifiability conditions are analyzedKeywords
This publication has 8 references indexed in Scilit:
- Blind joint equalization of multiple synchronous mobile users using oversampling and/or multiple antennasPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A blind spatio-temporal equalizer for a radio-mobile channel using the constant modulus algorithm (CMA)Published by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Adaptive fractionally spaced blind equalizationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- New processing techniques based on the constant modulus adaptive algorithmIEEE Transactions on Acoustics, Speech, and Signal Processing, 1985
- Self-Recovering Equalization and Carrier Tracking in Two-Dimensional Data Communication SystemsIEEE Transactions on Communications, 1980
- On generalized inverses of polynomial and other matricesIEEE Transactions on Automatic Control, 1980
- A generalized resultant matrix for polynomial matricesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1976
- Generalized Bezoutian and Sylvester matrices in multivariable linear controlIEEE Transactions on Automatic Control, 1976