Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery

Abstract Range ambiguity suppression is a significant problem in traditional pulse‐Doppler radar systems, especially when the pulse repetition frequency is set high to avoid Doppler ambiguity. One possible way to deal with such problem is to apply the noise radar system, by transmitting pulse‐agile...

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Autores principales:	Xingyu Lu, Wenchao Yu, Mengying Xia, Weimin Su, Hong Gu
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/9e476950922245ba8d34730858f3a416
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spelling	oai:doaj.org-article:9e476950922245ba8d34730858f3a4162021-11-05T05:26:52ZRange‐ambiguity suppression for noise radar in cluttered environment via sparse recovery1350-911X0013-519410.1049/ell2.12291https://doaj.org/article/9e476950922245ba8d34730858f3a4162021-11-01T00:00:00Zhttps://doi.org/10.1049/ell2.12291https://doaj.org/toc/0013-5194https://doaj.org/toc/1350-911XAbstract Range ambiguity suppression is a significant problem in traditional pulse‐Doppler radar systems, especially when the pulse repetition frequency is set high to avoid Doppler ambiguity. One possible way to deal with such problem is to apply the noise radar system, by transmitting pulse‐agile waveforms and using a group of matched filters as the receiver to accumulate the power of unambiguous echoes while dispersing the range‐ambiguous ones. However, when strong targets or heavy clutters exist, the dispersed ambiguous power is still high, which leads to high range‐Doppler sidelobes and overwhelms the weak targets. This paper explores a new way to deal with the range‐ambiguity suppression problem in noise radar. The range‐ambiguity suppression as a sparse recovery problem is formulated, and then both the unambiguous and ambiguous targets (and/or clutters) can be simultaneously reconstructed. The proposed method can enhance the range‐ambiguity suppression performance and synthetic an ambiguity‐free range‐Doppler map with a low sidelobe level, which ensures the weak target recovery performance even in a cluttered environment.Xingyu LuWenchao YuMengying XiaWeimin SuHong GuWileyarticleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENElectronics Letters, Vol 57, Iss 23, Pp 894-896 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Electrical engineering. Electronics. Nuclear engineering TK1-9971 Xingyu Lu Wenchao Yu Mengying Xia Weimin Su Hong Gu Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
description	Abstract Range ambiguity suppression is a significant problem in traditional pulse‐Doppler radar systems, especially when the pulse repetition frequency is set high to avoid Doppler ambiguity. One possible way to deal with such problem is to apply the noise radar system, by transmitting pulse‐agile waveforms and using a group of matched filters as the receiver to accumulate the power of unambiguous echoes while dispersing the range‐ambiguous ones. However, when strong targets or heavy clutters exist, the dispersed ambiguous power is still high, which leads to high range‐Doppler sidelobes and overwhelms the weak targets. This paper explores a new way to deal with the range‐ambiguity suppression problem in noise radar. The range‐ambiguity suppression as a sparse recovery problem is formulated, and then both the unambiguous and ambiguous targets (and/or clutters) can be simultaneously reconstructed. The proposed method can enhance the range‐ambiguity suppression performance and synthetic an ambiguity‐free range‐Doppler map with a low sidelobe level, which ensures the weak target recovery performance even in a cluttered environment.
format	article
author	Xingyu Lu Wenchao Yu Mengying Xia Weimin Su Hong Gu
author_facet	Xingyu Lu Wenchao Yu Mengying Xia Weimin Su Hong Gu
author_sort	Xingyu Lu
title	Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
title_short	Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
title_full	Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
title_fullStr	Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
title_full_unstemmed	Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
title_sort	range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/9e476950922245ba8d34730858f3a416
work_keys_str_mv	AT xingyulu rangeambiguitysuppressionfornoiseradarinclutteredenvironmentviasparserecovery AT wenchaoyu rangeambiguitysuppressionfornoiseradarinclutteredenvironmentviasparserecovery AT mengyingxia rangeambiguitysuppressionfornoiseradarinclutteredenvironmentviasparserecovery AT weiminsu rangeambiguitysuppressionfornoiseradarinclutteredenvironmentviasparserecovery AT honggu rangeambiguitysuppressionfornoiseradarinclutteredenvironmentviasparserecovery
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Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery

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