TY - GEN
T1 - DOA estimation by 3-D microphone array in the presence of spatial aliasing
AU - Kijima, Ai
AU - Mitsukura, Yasue
AU - Hamada, Nozomu
PY - 2013/1/1
Y1 - 2013/1/1
N2 - This study proposes a method to estimate the direction of arrival (DOA) for multiple sources by using microphone array under aliasing condition. Many conventional DOA estimation methods based on the sparseness of time-frequency (T-F) components of speech signals have to limit the sensor distance because of avoiding spatial aliasing due to the use of phase difference. Here we propose a 3-dimentional DOA or both azimuth and elevation angles estimation method capable to treat even in the presence of spatial aliasing. To cope with this problem, a reliable T-F cell selection and new bandwidth control in the kernel density estimation. In order to verify the effectiveness of the proposed method, experimental simulations have been performed. The simulation results show that the proposed DOA estimation gives accurate estimation even for spatial aliasing cases.
AB - This study proposes a method to estimate the direction of arrival (DOA) for multiple sources by using microphone array under aliasing condition. Many conventional DOA estimation methods based on the sparseness of time-frequency (T-F) components of speech signals have to limit the sensor distance because of avoiding spatial aliasing due to the use of phase difference. Here we propose a 3-dimentional DOA or both azimuth and elevation angles estimation method capable to treat even in the presence of spatial aliasing. To cope with this problem, a reliable T-F cell selection and new bandwidth control in the kernel density estimation. In order to verify the effectiveness of the proposed method, experimental simulations have been performed. The simulation results show that the proposed DOA estimation gives accurate estimation even for spatial aliasing cases.
KW - DOA estimation
KW - microphone array
KW - spatial aliasing
KW - time-frequency analysis
UR - http://www.scopus.com/inward/record.url?scp=84897801694&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897801694&partnerID=8YFLogxK
U2 - 10.1109/SPC.2013.6735133
DO - 10.1109/SPC.2013.6735133
M3 - Conference contribution
AN - SCOPUS:84897801694
SN - 9781479922093
T3 - Proceedings - 2013 IEEE Conference on Systems, Process and Control, ICSPC 2013
SP - 209
EP - 213
BT - Proceedings - 2013 IEEE Conference on Systems, Process and Control, ICSPC 2013
PB - IEEE Computer Society
T2 - 2013 IEEE Conference on Systems, Process and Control, ICSPC 2013
Y2 - 13 December 2013 through 15 December 2013
ER -