FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis

The hybrid of the frequency diversity array (FDA) radar and multiple-input multiple-output (MIMO) radar, namely, FDA–MIMO radar, provides more degrees of freedom and improves the overall performance of the system. The essence of FDA–MIMO radar transmitting subaperture design is to divide the transmi...

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Autores principales:	Changlin Zhou, Chunyang Wang, Jian Gong, Ming Tan, Yingjian Zhao, Mingjie Liu
Formato:	article
Lenguaje:	EN
Publicado:	AIP Publishing LLC 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/36bd42c1639b4e589abeb5286e16a7a8
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spelling	oai:doaj.org-article:36bd42c1639b4e589abeb5286e16a7a82021-12-01T18:52:06ZFDA–MIMO radar transmitting subaperture design and anti-interference performance analysis2158-322610.1063/5.0072832https://doaj.org/article/36bd42c1639b4e589abeb5286e16a7a82021-11-01T00:00:00Zhttp://dx.doi.org/10.1063/5.0072832https://doaj.org/toc/2158-3226The hybrid of the frequency diversity array (FDA) radar and multiple-input multiple-output (MIMO) radar, namely, FDA–MIMO radar, provides more degrees of freedom and improves the overall performance of the system. The essence of FDA–MIMO radar transmitting subaperture design is to divide the transmit array into multiple subapertures to improve the interference suppression capability of the radar. Among them, orthogonal waveforms are transmitted between each subaperture, and each element inside the subaperture transmits the same waveform. Aiming at the problem of how the subaperture design of the FDA–MIMO radar affects its interference suppression performance, we analyzed the two aspects of the normalized beampattern and (non-)adaptive beamforming. We conclude that when interference is dominant, setting the number of subapertures to half of the number of transmit array elements can effectively reduce the sidelobe level and increase the output signal-to-interference-plus-noise ratio. A large number of simulation results verify the effectiveness and superiority of this method.Changlin ZhouChunyang WangJian GongMing TanYingjian ZhaoMingjie LiuAIP Publishing LLCarticlePhysicsQC1-999ENAIP Advances, Vol 11, Iss 11, Pp 115018-115018-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Changlin Zhou Chunyang Wang Jian Gong Ming Tan Yingjian Zhao Mingjie Liu FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis
description	The hybrid of the frequency diversity array (FDA) radar and multiple-input multiple-output (MIMO) radar, namely, FDA–MIMO radar, provides more degrees of freedom and improves the overall performance of the system. The essence of FDA–MIMO radar transmitting subaperture design is to divide the transmit array into multiple subapertures to improve the interference suppression capability of the radar. Among them, orthogonal waveforms are transmitted between each subaperture, and each element inside the subaperture transmits the same waveform. Aiming at the problem of how the subaperture design of the FDA–MIMO radar affects its interference suppression performance, we analyzed the two aspects of the normalized beampattern and (non-)adaptive beamforming. We conclude that when interference is dominant, setting the number of subapertures to half of the number of transmit array elements can effectively reduce the sidelobe level and increase the output signal-to-interference-plus-noise ratio. A large number of simulation results verify the effectiveness and superiority of this method.
format	article
author	Changlin Zhou Chunyang Wang Jian Gong Ming Tan Yingjian Zhao Mingjie Liu
author_facet	Changlin Zhou Chunyang Wang Jian Gong Ming Tan Yingjian Zhao Mingjie Liu
author_sort	Changlin Zhou
title	FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis
title_short	FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis
title_full	FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis
title_fullStr	FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis
title_full_unstemmed	FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis
title_sort	fda–mimo radar transmitting subaperture design and anti-interference performance analysis
publisher	AIP Publishing LLC
publishDate	2021
url	https://doaj.org/article/36bd42c1639b4e589abeb5286e16a7a8
work_keys_str_mv	AT changlinzhou fdamimoradartransmittingsubaperturedesignandantiinterferenceperformanceanalysis AT chunyangwang fdamimoradartransmittingsubaperturedesignandantiinterferenceperformanceanalysis AT jiangong fdamimoradartransmittingsubaperturedesignandantiinterferenceperformanceanalysis AT mingtan fdamimoradartransmittingsubaperturedesignandantiinterferenceperformanceanalysis AT yingjianzhao fdamimoradartransmittingsubaperturedesignandantiinterferenceperformanceanalysis AT mingjieliu fdamimoradartransmittingsubaperturedesignandantiinterferenceperformanceanalysis
_version_	1718404684480249856

FDA–MIMO radar transmitting subaperture design and anti-interference performance analysis

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