Title :
Robust time delay estimation for sound source localization in noisy environments
Author :
Georgiou, Panayiotis G. ; Kyriakakis, Chris ; Tsakalides, Panagiotis
Author_Institution :
Integrated Media Syst. Center, Univ. of Southern California, Los Angeles, CA, USA
Abstract :
This paper addresses the problem of robust localization of a sound source in a wide range of operating environments. We use fractional lower order statistics in the frequency domain of two-sensor measurements to accurately locate the source in impulsive noise. We demonstrate a significant improvement in detection via simulation experiments of a sound source in α-stable noise. Applications of this technique include the efficient steering of a microphone array in teleconference applications
Keywords :
Gaussian noise; acoustic signal detection; acoustic signal processing; acoustic transducer arrays; adaptive signal processing; array signal processing; delays; direction-of-arrival estimation; frequency-domain analysis; microphones; statistical analysis; teleconferencing; α-stable noise; Gaussian noise; adaptive microphone array steering; fractional lower order statistics; frequency domain; impulsive noise; noisy environments; operating environments; robust time delay estimation; signal detection; simulation experiments; sound source localization; teleconference applications; two-sensor measurements; 1f noise; Acoustic noise; Delay effects; Delay estimation; Frequency domain analysis; Frequency measurement; Microphone arrays; Noise robustness; Statistics; Working environment noise;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 1997. 1997 IEEE ASSP Workshop on
Conference_Location :
New Paltz, NY
Print_ISBN :
0-7803-3908-8
DOI :
10.1109/ASPAA.1997.625638
