NDLI: Robust Transmit Nulling in Wideband Arrays

Content Provider	IEEE Xplore Digital Library
Author	Vouras, P.G. Tran, T.D.
Copyright Year	1991
Abstract	The ability to create nulls in the transmit pattern of a phased array antenna has many applications in communication and radar systems, including interference and clutter mitigation. This paper describes the implementation of transmit nulls in wideband arrays through the use of a filter bank inserted behind each array element. The filter bank decimates and partitions the transmit signal into independent subbands and utilizes a tapped delay line (TDL) in each subband to form frequency invariant spatial nulls in the array's transmit pattern. New contributions developed in this paper include an algorithm for determining the TDL coefficients and a novel band partitioning scheme based on principal component filter banks (PCFBs), which is shown to be optimal for minimizing spectral errors if the TDL coefficients are quantized. Numerical techniques are presented for approximating ideal PCFBs using practical paraunitary filter banks (PUFBs) and perfect reconstruction filter banks (PRFBs).
Sponsorship	IEEE Signal Processing Society
Starting Page	3706
Ending Page	3719
Page Count	14
File Size	3638669
File Format	PDF
ISSN	1053587X
Volume Number	62
Issue Number	14
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Wideband Array signal processing Signal processing algorithms Filter banks Interference filter bank design Optimization methods wideband radar adaptive arrays
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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