New techniques and structures for array signal processing with enhanced robustness

223 p.

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Bibliographic Details
Main Author:	Zhang, Ying
Other Authors:	Ng Boon Poh
Format:	Theses and Dissertations
Published:	2011
Subjects:	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
Online Access:	https://hdl.handle.net/10356/46851
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Institution:	Nanyang Technological University

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spelling	sg-ntu-dr.10356-468512023-07-04T17:07:41Z New techniques and structures for array signal processing with enhanced robustness Zhang, Ying Ng Boon Poh School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing 223 p. The content of this thesis comprises original research work on the investigations of new structures and algorithms to enhance robustness of array signal processing. To suppress the high sidelobe level of the Minimum Variance and Distortionless Response (MVDR) beamformer, two beamformers imposed with sparse constraint on the beampattern are proposed. In the first algorithm, the sparse constraint is imposed on the beampatterns of the beamformer with respect to interference directions, which results in a beamforming algorithm with lower sidelobe level and better robustness against look direction mismatch. When array imperfection is taken into account, a modified algorithm is proposed in order to improve the performance of the beamformer when the interference signals are not located perfectly at the presumed directions. The modified algorithm maintains distortionless response in a wide angular range. It has been demonstrated by computer simulations that the proposed algorithms are valid for sidelobe suppression. Their robustness against steering vector error is also verified. DOCTOR OF PHILOSOPHY (EEE) 2011-12-23T10:01:04Z 2011-12-23T10:01:04Z 2010 2010 Thesis Zhang, Y. (2010). New techniques and structures for array signal processing with enhanced robustness. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/46851 10.32657/10356/46851 Nanyang Technological University application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
topic	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
spellingShingle	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Zhang, Ying New techniques and structures for array signal processing with enhanced robustness
description	223 p.
author2	Ng Boon Poh
author_facet	Ng Boon Poh Zhang, Ying
format	Theses and Dissertations
author	Zhang, Ying
author_sort	Zhang, Ying
title	New techniques and structures for array signal processing with enhanced robustness
title_short	New techniques and structures for array signal processing with enhanced robustness
title_full	New techniques and structures for array signal processing with enhanced robustness
title_fullStr	New techniques and structures for array signal processing with enhanced robustness
title_full_unstemmed	New techniques and structures for array signal processing with enhanced robustness
title_sort	new techniques and structures for array signal processing with enhanced robustness
publishDate	2011
url	https://hdl.handle.net/10356/46851
_version_	1772828480611811328

New techniques and structures for array signal processing with enhanced robustness

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