High resolution broadband beamforming based on the MVDR method

被引：0
|
作者：
Kim, BC [1 ]
Lu, IT [1 ]
机构：
[1] Polytech Univ, Dept Elect Engn, Ctr Adv Technol & Telecommun, Farmingdale, NY 11735 USA
来源：
OCEANS 2000 MTS/IEEE - WHERE MARINE SCIENCE AND TECHNOLOGY MEET, VOLS 1-3, CONFERENCE PROCEEDINGS | 2000年
关键词：
D O I：
暂无
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
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.
引用
收藏
页码：1025 / 1028
页数：4
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