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Beamforming Using Passive Nested Arrays of Sensors

Pal, Piya and Vaidyanathan, P. P. (2010) Beamforming Using Passive Nested Arrays of Sensors. In: Proceedings of the 2010 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE International Symposium on Circuits and Systems . IEEE , New York, pp. 2840-2843. ISBN 978-1-4244-5308-5.

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A novel approach to beamforming using a new class of sensor arrays is proposed, which can increase the achievable degrees of freedom significantly beyond the conventional limits obtained from uniform linear arrays (ULA). This class of arrays is named as “nested arrays” since they are obtained by nesting two or more ULAs with increasing inter-sensor spacing. Using the second order statistics of the signal received by such an array in a novel way, it is possible to perform beamforming with O(N^2) degrees of freedom using only O(N) physical elements. This kind of beamforming will be shown to be essentially non linear in nature and theoretically, it is capable of nulling the effect of noise provided enough snapshots are available.

Item Type:Book Section
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Vaidyanathan, P. P.0000-0003-3003-7042
Additional Information:© 2011 IEEE. Issue Date: May 30 2010-June 2 2010; Date of Current Version: 03 August 2010. Work supported in parts by the ONR grant N00014-08-1-0709, and the California Institute of Technology.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-08-1-0709
Subject Keywords:Beamforming; Co-array; Degrees of Freedom; Jammer; Non Uniform Arrays
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INSPEC Accession Number11462789
Series Name:IEEE International Symposium on Circuits and Systems
Record Number:CaltechAUTHORS:20110330-113248959
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Official Citation:Pal, P.; Vaidyanathan, P.P.; , "Beamforming using passive nested arrays of sensors," Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on , vol., no., pp.2840-2843, May 30 2010-June 2 2010 doi: 10.1109/ISCAS.2010.5536971
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23177
Deposited By: Jason Perez
Deposited On:31 Mar 2011 20:28
Last Modified:09 Mar 2020 13:19

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