TY - JOUR
T1 - Integrated method of multi-target detection and DOA estimation by exploiting knowledge of beam-spectra envelope
AU - Zhang, Li Jie
AU - Huang, Jian Guo
AU - Zhang, Qun Fei
PY - 2009/12
Y1 - 2009/12
N2 - An integrated method of acoustic signal detection and direction-of-arrival (DOA) estimation is proposed. As exploiting the beam-spectra envelop (BE) knowledge of the spatial spectrum outputted by beam scanning system, it is named as BE method, in which, based on the results of energy detection, the 3 dB-width information of spectral peaks is used further to detect the source number in each peak, and the DOAs are estimated by 2-D Capon searching. The Qiandao Lake experimental results show that, comparing with traditional algorithms, the performance of target detection and DOA estimation is improved at lower SNRs.
AB - An integrated method of acoustic signal detection and direction-of-arrival (DOA) estimation is proposed. As exploiting the beam-spectra envelop (BE) knowledge of the spatial spectrum outputted by beam scanning system, it is named as BE method, in which, based on the results of energy detection, the 3 dB-width information of spectral peaks is used further to detect the source number in each peak, and the DOAs are estimated by 2-D Capon searching. The Qiandao Lake experimental results show that, comparing with traditional algorithms, the performance of target detection and DOA estimation is improved at lower SNRs.
KW - Acoustic signal processing
KW - Direction-of-arrival estimation
KW - High resolution
KW - Multi-target detection
KW - Source number estimation
UR - http://www.scopus.com/inward/record.url?scp=75349099724&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:75349099724
SN - 0372-2112
VL - 37
SP - 2823
EP - 2828
JO - Tien Tzu Hsueh Pao/Acta Electronica Sinica
JF - Tien Tzu Hsueh Pao/Acta Electronica Sinica
IS - 12
ER -