NDLI: Closed-loop multistage adaptive beamforming

Content Provider	IEEE Xplore Digital Library
Author	Rabideau, D.J.
Copyright Year	1999
Description	Author affiliation: Lincoln Lab., MIT, Lexington, MA, USA (Rabideau, D.J.)
Abstract	This work is concerned with efficient techniques for adaptive interference cancellation, and their application to very large arrays. Such arrays provide many degrees of freedom (DOFs) that can be used for filtering. However, the processing hardware required to fully utilize these DOFs (i.e., in a simultaneous, data-adaptive fashion) is prohibitive. To address this problem, we establish a new signal processing framework called "closed-loop multistage adaptive beamforming." A simplistic environmental model is used to demonstrate the capabilities of this new class of signal processing architectures. In typical applications, closed-loop multistage adaptive beamforming is shown to potentially result in one of the following desirable results: (1) orders of magnitude reductions in hardware and processing complexity for a given performance level; and (2) orders of magnitude improvements in interference rejection and target detection for a given number of instantaneously adaptive degrees of freedom.
Starting Page	98
Ending Page	102
File Size	529469
Page Count	5
File Format	PDF
ISBN	0780357000
ISSN	10586393
DOI	10.1109/ACSSC.1999.832303
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Jamming Hardware Interference suppression Wiener filter Adaptive signal processing Laboratories Interference cancellation Adaptive arrays Filtering
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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