Title :
ℓ0-optimization for channel and DOA sparse estimation
Author :
Adilson Chinatto;Emmanuel Soubies;Cynthia Junqueira;Jo?o M. T. Romano;Pascal Larzabal;Jean-Pierre Barbot;Laure Blanc-F?raud
Author_Institution :
School of Electrical and Computer Engineering, University of Campinas, Brazil
Abstract :
This paper is devoted to two classical sparse problems in array processing: Channel estimation and DOA estimation. It is shown after some background and some recent results in ℓ0 optimization how this latter can be used, at the same computational cost, in order to obtain improvement in comparison with ℓ1 optimization for sparse estimation.
Keywords :
"Channel estimation","Estimation","Optimization","Minimization","Direction-of-arrival estimation","Matching pursuit algorithms","Sparse matrices"
Conference_Titel :
Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2015 IEEE 6th International Workshop on
DOI :
10.1109/CAMSAP.2015.7383797
