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A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar

A novel unitary estimation of signal parameters via rotational invariance techniques (ESPRIT) algorithm, for the joint direction of arrival (DOA) and range estimation in a monostatic multiple-input multiple-output (MIMO) radar with a frequency diverse array (FDA), is proposed. Firstly, by utilizing...

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Autores principales: Liu, Feilong, Wang, Xianpeng, Huang, Mengxing, Wan, Liangtian, Wang, Huafei, Zhang, Bin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7038704/
https://www.ncbi.nlm.nih.gov/pubmed/32033075
http://dx.doi.org/10.3390/s20030827
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author Liu, Feilong
Wang, Xianpeng
Huang, Mengxing
Wan, Liangtian
Wang, Huafei
Zhang, Bin
author_facet Liu, Feilong
Wang, Xianpeng
Huang, Mengxing
Wan, Liangtian
Wang, Huafei
Zhang, Bin
author_sort Liu, Feilong
collection PubMed
description A novel unitary estimation of signal parameters via rotational invariance techniques (ESPRIT) algorithm, for the joint direction of arrival (DOA) and range estimation in a monostatic multiple-input multiple-output (MIMO) radar with a frequency diverse array (FDA), is proposed. Firstly, by utilizing the property of Centro-Hermitian of the received data, the extended real-valued data is constructed to improve estimation accuracy and reduce computational complexity via unitary transformation. Then, to avoid the coupling between the angle and range in the transmitting array steering vector, the DOA is estimated by using the rotation invariance of the receiving subarrays. Thereafter, an automatic pairing method is applied to estimate the range of the target. Since phase ambiguity is caused by the phase periodicity of the transmitting array steering vector, a removal method of phase ambiguity is proposed. Finally, the expression of Cramér–Rao Bound (CRB) is derived and the computational complexity of the proposed algorithm is compared with the ESPRIT algorithm. The effectiveness of the proposed algorithm is verified by simulation results.
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spelling pubmed-70387042020-03-09 A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar Liu, Feilong Wang, Xianpeng Huang, Mengxing Wan, Liangtian Wang, Huafei Zhang, Bin Sensors (Basel) Article A novel unitary estimation of signal parameters via rotational invariance techniques (ESPRIT) algorithm, for the joint direction of arrival (DOA) and range estimation in a monostatic multiple-input multiple-output (MIMO) radar with a frequency diverse array (FDA), is proposed. Firstly, by utilizing the property of Centro-Hermitian of the received data, the extended real-valued data is constructed to improve estimation accuracy and reduce computational complexity via unitary transformation. Then, to avoid the coupling between the angle and range in the transmitting array steering vector, the DOA is estimated by using the rotation invariance of the receiving subarrays. Thereafter, an automatic pairing method is applied to estimate the range of the target. Since phase ambiguity is caused by the phase periodicity of the transmitting array steering vector, a removal method of phase ambiguity is proposed. Finally, the expression of Cramér–Rao Bound (CRB) is derived and the computational complexity of the proposed algorithm is compared with the ESPRIT algorithm. The effectiveness of the proposed algorithm is verified by simulation results. MDPI 2020-02-04 /pmc/articles/PMC7038704/ /pubmed/32033075 http://dx.doi.org/10.3390/s20030827 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Feilong
Wang, Xianpeng
Huang, Mengxing
Wan, Liangtian
Wang, Huafei
Zhang, Bin
A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar
title A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar
title_full A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar
title_fullStr A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar
title_full_unstemmed A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar
title_short A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar
title_sort novel unitary esprit algorithm for monostatic fda-mimo radar
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7038704/
https://www.ncbi.nlm.nih.gov/pubmed/32033075
http://dx.doi.org/10.3390/s20030827
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