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ICASSP
2011
IEEE
14 years 7 months ago
Promoting convergence in multi-channel blind signal separation using PNLMS
The proportionate normalized least-mean squares (PNLMS) adaptation algorithm exploits the sparse nature of acoustic impulse responses and assigns adaptation gain proportional to t...
Muhammad Z. Ikram
127
Voted
SIGPRO
2011
209views Hardware» more  SIGPRO 2011»
14 years 10 months ago
Surveying and comparing simultaneous sparse approximation (or group-lasso) algorithms
In this paper, we survey and compare different algorithms that, given an overcomplete dictionary of elementary functions, solve the problem of simultaneous sparse signal approxim...
A. Rakotomamonjy
118
Voted
ICASSP
2011
IEEE
14 years 7 months ago
An efficient variable step-size proportionate affine projection algorithm
Proportionate-type affine projection algorithms (PAPAs) are very attractive choices for echo cancellation. These algorithms combine the good features (convergence and tracking) o...
Constantin Paleologu, Jacob Benesty, Felix Albu, S...
ICASSP
2011
IEEE
14 years 7 months ago
Dual frame of frequency warping operators
In this work we introduce the dual frame operator relative to the aliasing compensated frequency warping operator for nonsmooth warping functions. Except for approximation errors,...
Salvatore Caporale, Nicolo Speciale
ICASSP
2011
IEEE
14 years 7 months ago
Hardware architectures for successive cancellation decoding of polar codes
The recently-discovered polar codes are widely seen as a major breakthrough in coding theory. These codes achieve the capacity of many important channels under successive cancella...
Camille Leroux, Ido Tal, Alexander Vardy, Warren J...