Title :
Source localization in reverberant environments: performance bounds and ML estimation
Author :
Gustafsson, Tony ; Rao, Bhaskar D. ; Trivedi, Mohan
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
The main obstacle for designing robust microphone-based source localization systems is the effects of room reverberation. Based on well known results from statistical room acoustics, we present an analysis of the problem of localizing acoustical sources in the presence of room reverberation. In this context we derive the Cramer-Rao lower bound and also relevant ML estimators.
Keywords :
acoustic signal processing; architectural acoustics; direction-of-arrival estimation; maximum likelihood estimation; reverberation; statistical analysis; Cramer Rao lower bound; ML estimation; ML estimators; microphone-based source localization; performance bounds; room reverberation; statistical room acoustics; Acoustic propagation; Acoustic reflection; Additive noise; Delay estimation; Drives; Frequency; Maximum likelihood estimation; Microphone arrays; Postal services; Reverberation;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987753
