NDLI: Block adaptive beamforming via parallel projection method

Content Provider	IEEE Xplore Digital Library
Author	Wen-Hsien Fang Sen-Hsien Hung Kuo-Hsiung Wu
Copyright Year	2005
Description	Author affiliation: Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan (Wen-Hsien Fang)
Abstract	This paper addresses a simple, and yet effective approach to the design of block adaptive beamformers via parallel projection method (PPM), which is an extension of the classic projection onto convex set (POCS) method to inconsistent sets scenarios. The proposed approach begins with the construction of the convex constraint sets, which the weight vector of the adaptive beamformer lies in. The convex sets are judiciously chosen to force the weights to possess some desirable properties or to meet some prescribed rules. Based on the minimum variance criterion and a fixed gain at the look direction, two constraint sets including the minimum variance constraint set and the gain constraint set are considered. For every input block of data, the weights of the proposed beamformer can then be determined by iteratively projecting the weight vector onto these convex sets until it converges. Furnished simulations show that the proposed beamformer provides superior performance compared with previous works in various scenarios but yet in general with lower computational overhead.
Starting Page	983
Ending Page	986
File Size	192198
Page Count	4
File Format	PDF
ISBN	0780390687
DOI	10.1109/WCACEM.2005.1469748
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-04-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	ACES
Subject Keyword	Marine technology Interference suppression Design engineering Array signal processing Computational modeling Oceans Distortion Jamming Power generation Convergence
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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