Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar

Abstract The vortex electromagnetic (EM) wave radar has the potential to obtain more accurate micro‐motion parameters for target recognition. However, with the existing algorithms of micro‐motion parameter extraction it is difficult to obtain the real rotation radius and tilt angle of a rotational t...

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Autores principales:	Hang Yuan, Ying Luo, Yi‐Jun Chen, Jia Liang, Ying‐Xi Liu
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Telecommunication TK5101-6720
Acceso en línea:	https://doaj.org/article/8964ac59544d44cbbc7e8a43090e05a3
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spelling	oai:doaj.org-article:8964ac59544d44cbbc7e8a43090e05a32021-11-12T15:34:29ZMicro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar1751-87921751-878410.1049/rsn2.12149https://doaj.org/article/8964ac59544d44cbbc7e8a43090e05a32021-12-01T00:00:00Zhttps://doi.org/10.1049/rsn2.12149https://doaj.org/toc/1751-8784https://doaj.org/toc/1751-8792Abstract The vortex electromagnetic (EM) wave radar has the potential to obtain more accurate micro‐motion parameters for target recognition. However, with the existing algorithms of micro‐motion parameter extraction it is difficult to obtain the real rotation radius and tilt angle of a rotational target in the presence of multiple scattering points in the radar beam. A micro‐motion parameter extraction algorithm for rotating targets based on the vortex EM wave radar is proposed in this article. The angular Doppler is obtained from the dual‐mode vortex EM echoes. The time interval between the maximum and minimum angular Doppler frequency is derived. The relationship between the time interval and micro‐motion parameters is shown. By combining the linear Doppler and the angular Doppler, the micro‐motion parameters are roughly estimated. Then, fine micro‐motion parameters are obtained by using an iterative soft threshold algorithm. The proposed algorithm can extract the real rotation radius and tilt angle in the case of multiple scattering points. The performance and robustness of the algorithm are proved by simulations.Hang YuanYing LuoYi‐Jun ChenJia LiangYing‐Xi LiuWileyarticleTelecommunicationTK5101-6720ENIET Radar, Sonar & Navigation, Vol 15, Iss 12, Pp 1594-1606 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Telecommunication TK5101-6720
spellingShingle	Telecommunication TK5101-6720 Hang Yuan Ying Luo Yi‐Jun Chen Jia Liang Ying‐Xi Liu Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
description	Abstract The vortex electromagnetic (EM) wave radar has the potential to obtain more accurate micro‐motion parameters for target recognition. However, with the existing algorithms of micro‐motion parameter extraction it is difficult to obtain the real rotation radius and tilt angle of a rotational target in the presence of multiple scattering points in the radar beam. A micro‐motion parameter extraction algorithm for rotating targets based on the vortex EM wave radar is proposed in this article. The angular Doppler is obtained from the dual‐mode vortex EM echoes. The time interval between the maximum and minimum angular Doppler frequency is derived. The relationship between the time interval and micro‐motion parameters is shown. By combining the linear Doppler and the angular Doppler, the micro‐motion parameters are roughly estimated. Then, fine micro‐motion parameters are obtained by using an iterative soft threshold algorithm. The proposed algorithm can extract the real rotation radius and tilt angle in the case of multiple scattering points. The performance and robustness of the algorithm are proved by simulations.
format	article
author	Hang Yuan Ying Luo Yi‐Jun Chen Jia Liang Ying‐Xi Liu
author_facet	Hang Yuan Ying Luo Yi‐Jun Chen Jia Liang Ying‐Xi Liu
author_sort	Hang Yuan
title	Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
title_short	Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
title_full	Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
title_fullStr	Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
title_full_unstemmed	Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
title_sort	micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/8964ac59544d44cbbc7e8a43090e05a3
work_keys_str_mv	AT hangyuan micromotionparameterextractionofrotatingtargetbasedonvortexelectromagneticwaveradar AT yingluo micromotionparameterextractionofrotatingtargetbasedonvortexelectromagneticwaveradar AT yijunchen micromotionparameterextractionofrotatingtargetbasedonvortexelectromagneticwaveradar AT jialiang micromotionparameterextractionofrotatingtargetbasedonvortexelectromagneticwaveradar AT yingxiliu micromotionparameterextractionofrotatingtargetbasedonvortexelectromagneticwaveradar
_version_	1718430380159139840

Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar

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