Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection

This paper first establishes a new complex independent component analysis (cICA) algorithm based on the spatiotemporal extension of complex-valued entropy bound minimization (CEBM) to separate received complex-valued radar signals. Next, we propose a new cICA-based detector with an open structure to...

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Autores principales:	Hamzeh Ghahramani, Naser Parhizgar, Bijan Abbasi Arand, Morteza Barari
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/d4c24614911d45c0a1acb1af5cbc9f9a
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spelling	oai:doaj.org-article:d4c24614911d45c0a1acb1af5cbc9f9a2021-11-22T01:10:39ZConvolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection1563-514710.1155/2021/6191303https://doaj.org/article/d4c24614911d45c0a1acb1af5cbc9f9a2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/6191303https://doaj.org/toc/1563-5147This paper first establishes a new complex independent component analysis (cICA) algorithm based on the spatiotemporal extension of complex-valued entropy bound minimization (CEBM) to separate received complex-valued radar signals. Next, we propose a new cICA-based detector with an open structure to find Swerling model targets, lognormal targets, and sea-surface small floating targets in coherent high-resolution maritime surveillance radars. The detector encountered three major problems when adopting cICA for detection and solved them using three effective suggestions. After performing cICA on the time series received by the radar, we obtained two different sources. Using the first and second theoretical and empirical moment estimates of the K-distribution, the target was selected between these two output source signals. Detector performance was verified quantitatively and qualitatively using the real-life IPIX radar database. Comprehensive experiments on this database with synthetic injected targets showed promising results. The computational time and sample size dependency of the proposed cICA algorithm were also discussed. Finally, a comparison of the detector with several novel detectors for detecting sea-surface floating small targets of the IPIX radar database demonstrated the proposed detector’s superiority.Hamzeh GhahramaniNaser ParhizgarBijan Abbasi ArandMorteza BarariHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040MathematicsQA1-939ENMathematical Problems in Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939 Hamzeh Ghahramani Naser Parhizgar Bijan Abbasi Arand Morteza Barari Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection
description	This paper first establishes a new complex independent component analysis (cICA) algorithm based on the spatiotemporal extension of complex-valued entropy bound minimization (CEBM) to separate received complex-valued radar signals. Next, we propose a new cICA-based detector with an open structure to find Swerling model targets, lognormal targets, and sea-surface small floating targets in coherent high-resolution maritime surveillance radars. The detector encountered three major problems when adopting cICA for detection and solved them using three effective suggestions. After performing cICA on the time series received by the radar, we obtained two different sources. Using the first and second theoretical and empirical moment estimates of the K-distribution, the target was selected between these two output source signals. Detector performance was verified quantitatively and qualitatively using the real-life IPIX radar database. Comprehensive experiments on this database with synthetic injected targets showed promising results. The computational time and sample size dependency of the proposed cICA algorithm were also discussed. Finally, a comparison of the detector with several novel detectors for detecting sea-surface floating small targets of the IPIX radar database demonstrated the proposed detector’s superiority.
format	article
author	Hamzeh Ghahramani Naser Parhizgar Bijan Abbasi Arand Morteza Barari
author_facet	Hamzeh Ghahramani Naser Parhizgar Bijan Abbasi Arand Morteza Barari
author_sort	Hamzeh Ghahramani
title	Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection
title_short	Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection
title_full	Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection
title_fullStr	Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection
title_full_unstemmed	Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection
title_sort	convolutive complex-valued independent component analysis for nonlinear radar signal processing and maritime weak target detection
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/d4c24614911d45c0a1acb1af5cbc9f9a
work_keys_str_mv	AT hamzehghahramani convolutivecomplexvaluedindependentcomponentanalysisfornonlinearradarsignalprocessingandmaritimeweaktargetdetection AT naserparhizgar convolutivecomplexvaluedindependentcomponentanalysisfornonlinearradarsignalprocessingandmaritimeweaktargetdetection AT bijanabbasiarand convolutivecomplexvaluedindependentcomponentanalysisfornonlinearradarsignalprocessingandmaritimeweaktargetdetection AT mortezabarari convolutivecomplexvaluedindependentcomponentanalysisfornonlinearradarsignalprocessingandmaritimeweaktargetdetection
_version_	1718418370667216896

Convolutive Complex-Valued Independent Component Analysis for Nonlinear Radar Signal Processing and Maritime Weak Target Detection

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