Title :
Block Sparse Estimator for Grid Matching in Single Snapshot DoA Estimation
Author :
Jagannath, Rakshith ; Hari, K.V.S.
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
In this work, the grid mismatch problem for a single snapshot direction of arrival estimation problem is studied. We derive a Bayesian Cramer-Rao bound for the grid mismatch problem with the errors in variables model and propose a block sparse estimator for grid matching and sparse recovery.
Keywords :
Bayes methods; direction-of-arrival estimation; Bayesian Cramer-Rao bound; block sparse estimator; direction-of-arrival estimation; grid matching; grid mismatch problem; single snapshot DOA estimation; sparse recovery; Arrays; Bayes methods; Cramer-Rao bounds; Direction-of-arrival estimation; Mathematical model; Vectors; Bayesian Cramer–Rao bound; block sparse estimator; direction of arrival estimation; grid matching;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2013.2279124
