Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System

Widely linear (WL) adaptive beamforming algorithms are proposed based on constrained minimum variance (CMV) and constrained constant modulus (CCM) criteria, respectively, to fully exploit both the desired signal and interferences' noncircularity. Modified conjugate gradient (MCG) algorithm is e...

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Main Authors: Yongyong Wang, Guang Liang, Lulu Zhao, Jinpei Yu, Lianxing He
Format: Article
Language:English
Published: Wiley 2016-07-01
Series:International Journal of Distributed Sensor Networks
Online Access:https://doi.org/10.1177/155014777698358
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author Yongyong Wang
Guang Liang
Lulu Zhao
Jinpei Yu
Lianxing He
author_facet Yongyong Wang
Guang Liang
Lulu Zhao
Jinpei Yu
Lianxing He
author_sort Yongyong Wang
collection DOAJ
description Widely linear (WL) adaptive beamforming algorithms are proposed based on constrained minimum variance (CMV) and constrained constant modulus (CCM) criteria, respectively, to fully exploit both the desired signal and interferences' noncircularity. Modified conjugate gradient (MCG) algorithm is employed to ensure convergence with one iteration per sample. To further facilitate the adaptive processing, CCM criterion based WL beamforming algorithm is modified by second-order local approximation. Global convergence of the proposed algorithms is analyzed and constraints of parameters are given. Results of numerical simulations demonstrate that the proposed WL CCM beamformer has superior performance over WL CMV beamformer and conventional beamformers in convergence rate, robustness against direction of arrival (DOA) mismatch, and the noncircularity coefficient estimation error, while the former two have comparable low complexities without numerical instability.
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institution Kabale University
issn 1550-1477
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publishDate 2016-07-01
publisher Wiley
record_format Article
series International Journal of Distributed Sensor Networks
spelling doaj-art-77ab2b29ad98436089fc4784067ae8e42025-08-20T03:35:38ZengWileyInternational Journal of Distributed Sensor Networks1550-14772016-07-011210.1177/155014777698358Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition SystemYongyong Wang0Guang Liang1Lulu Zhao2Jinpei Yu3Lianxing He4 Shanghai Engineering Center of Microsatellites, Chinese Academy of Sciences, Shanghai 201210, China Shanghai Engineering Center of Microsatellites, Chinese Academy of Sciences, Shanghai 201210, China Shanghai Engineering Center of Microsatellites, Chinese Academy of Sciences, Shanghai 201210, China The Joint Key Laboratory of Microsatellites, Chinese Academy of Sciences, Shanghai 201210, China Shanghai Engineering Center of Microsatellites, Chinese Academy of Sciences, Shanghai 201210, ChinaWidely linear (WL) adaptive beamforming algorithms are proposed based on constrained minimum variance (CMV) and constrained constant modulus (CCM) criteria, respectively, to fully exploit both the desired signal and interferences' noncircularity. Modified conjugate gradient (MCG) algorithm is employed to ensure convergence with one iteration per sample. To further facilitate the adaptive processing, CCM criterion based WL beamforming algorithm is modified by second-order local approximation. Global convergence of the proposed algorithms is analyzed and constraints of parameters are given. Results of numerical simulations demonstrate that the proposed WL CCM beamformer has superior performance over WL CMV beamformer and conventional beamformers in convergence rate, robustness against direction of arrival (DOA) mismatch, and the noncircularity coefficient estimation error, while the former two have comparable low complexities without numerical instability.https://doi.org/10.1177/155014777698358
spellingShingle Yongyong Wang
Guang Liang
Lulu Zhao
Jinpei Yu
Lianxing He
Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System
International Journal of Distributed Sensor Networks
title Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System
title_full Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System
title_fullStr Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System
title_full_unstemmed Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System
title_short Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System
title_sort constrained widely linear beamforming antijammer technique for satellite borne distributed sensor data acquisition system
url https://doi.org/10.1177/155014777698358
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