TY - GEN
T1 - Parameter estimation of acoustic signals using linear microphone arrays
AU - Guo, Liwen
AU - Gebre, Biruk A.
AU - Pochiraju, Kishore
PY - 2009
Y1 - 2009
N2 - A novel method is developed to sequentially analyze power spectrums, estimate the number of signals and their frequencies, Direction of Arrival (DOA), and Signal-to-Noise Ratio (SNR). The relationship between the estimation bias and the array gain is investigated and an empirical model is built to improve the parameter estimations. An eight-element linear microphone array is made and used in testing the developed techniques. Five maximum likelihood algorithms and the MUSIC algorithm were used for DOA estimation and the results were compared. The test results show that the proposed methods were efficient and satisfactory estimation accuracy was achieved.
AB - A novel method is developed to sequentially analyze power spectrums, estimate the number of signals and their frequencies, Direction of Arrival (DOA), and Signal-to-Noise Ratio (SNR). The relationship between the estimation bias and the array gain is investigated and an empirical model is built to improve the parameter estimations. An eight-element linear microphone array is made and used in testing the developed techniques. Five maximum likelihood algorithms and the MUSIC algorithm were used for DOA estimation and the results were compared. The test results show that the proposed methods were efficient and satisfactory estimation accuracy was achieved.
KW - Beamforming
KW - Direction of arrival
KW - Maximum likelihood
KW - Parameter estimation
KW - Sensor array
UR - http://www.scopus.com/inward/record.url?scp=67650658898&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67650658898&partnerID=8YFLogxK
U2 - 10.1109/SARNOF.2009.4850362
DO - 10.1109/SARNOF.2009.4850362
M3 - Conference contribution
AN - SCOPUS:67650658898
SN - 9781424433827
T3 - 2009 IEEE Sarnoff Symposium, SARNOFF 2009 - Conference Proceedings
BT - 2009 IEEE Sarnoff Symposium, SARNOFF 2009 - Conference Proceedings
T2 - 2009 IEEE Sarnoff Symposium, SARNOFF 2009
Y2 - 30 March 2009 through 1 April 2009
ER -