TY - JOUR
T1 - High resolution broadband beamforming based on the MVDR method
AU - Kim, Byung Chul
AU - Lu, I. Tai
PY - 2000
Y1 - 2000
N2 - In this paper, a simple, yet efficient and practical, high-resolution beamforming procedure is presented. Using FFT, broadband signals obtained from a linear sonar array are decomposed into multiple narrowband signals. For each narrowband signal, multiple MVDR (minimum variance distortionless response) beams are formed to cover the whole azimuth range using proper phase shifts on the steering vector. Power sum of the beams formed in subbands is used to detect targets and estimate its angle of arrival. Higher resolution is obtained using the proposed method, comparing to the conventional beamforming result.
AB - In this paper, a simple, yet efficient and practical, high-resolution beamforming procedure is presented. Using FFT, broadband signals obtained from a linear sonar array are decomposed into multiple narrowband signals. For each narrowband signal, multiple MVDR (minimum variance distortionless response) beams are formed to cover the whole azimuth range using proper phase shifts on the steering vector. Power sum of the beams formed in subbands is used to detect targets and estimate its angle of arrival. Higher resolution is obtained using the proposed method, comparing to the conventional beamforming result.
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U2 - 10.1109/OCEANS.2000.881734
DO - 10.1109/OCEANS.2000.881734
M3 - Article
AN - SCOPUS:85028295142
SN - 0197-7385
VL - 3
SP - 1673
EP - 1676
JO - Oceans Conference Record (IEEE)
JF - Oceans Conference Record (IEEE)
ER -