Title :
Knowledge-Aided Covariance Matrix Estimation and Adaptive Detection in Compound-Gaussian Noise
Author :
Bandiera, Francesco ; Besson, Olivier ; Ricci, Giuseppe
Author_Institution :
Dipt. di Ing. dell´´Innovazione, Univ. del Salento, Lecce, Italy
Abstract :
Let x be a signal to be sparsely decomposed over a redundant dictionary A, i.e., a sparse coefficient vector s has to be found such that x = As. It is known that this problem is inherently unstable against
Keywords :
Gaussian noise; covariance matrices; signal detection; Bayesian approach; GLRT; MAP estimators; MMSE; adaptive detection; compound-Gaussian noise; knowledge-aided covariance matrix estimation; Adaptive signal detection; Bayesian methods; Colored noise; Covariance matrix; Detectors; Signal detection; Signal processing; Statistical analysis; Statistical distributions; Testing; Adaptive detection; MAP estimation; MMSE estimation; compound-Gaussian clutter; covariance matrix estimation; heterogeneous environments;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2010.2052922
