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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. The power sum of the beams formed in subbands is used to detect targets and estimate angle of arrival. Higher resolution is obtained using the proposed method, comparing to the conventional beamforming result
Published in:
OCEANS 2000 MTS/IEEE Conference and Exhibition
(Volume:3
)
Date of Conference: 2000
- Page(s):
- 1673 - 1676 vol.3
- Meeting Date :
- 11 Sep 2000-14 Sep 2000
- Print ISBN:
- 0-7803-6551-8
- INSPEC Accession Number:
- 6845759
- Conference Location :
- Providence, RI
- Digital Object Identifier :
- 10.1109/OCEANS.2000.882181
- Product Type:
- Conference Publications
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