Title :
Lower bounds on the MSE for mixed far-field and near-field sources direction-of-arrivals
Author :
Renaux, Alexandre ; Boyer, Remy ; Marcos, Sylvie
Author_Institution :
Lab. of Signals & Syst., Univ. Paris-Sud, Gif-sur-Yvette, France
Abstract :
Fundamental limits in terms of mean square error for source localization by an array of sensors are investigated. The context is the case of a far-field source and a near-field source for which few results are available. Particularly, in order to characterize the SNR threshold exhibited by estimators in such scenario, lower bounds other than the Cramér-Rao bound are studied.
Keywords :
array signal processing; direction-of-arrival estimation; mean square error methods; Cramér-Rao bound; MSE; SNR threshold; direction-of-arrivals estimation; lower bounds; mean square error; mixed far-field source; near-field sources; sensor array; source localization;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2012 Conference Record of the Forty Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4673-5050-1
DOI :
10.1109/ACSSC.2012.6488949
