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Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection

In this paper, we explore a new resource called multi-target diversity to optimize the performance of multiple input multiple output (MIMO) radar with widely separated antennas for detecting multiple targets. In particular, we allocate antennas of the MIMO radar to probe different targets simultaneo...

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Detalles Bibliográficos
Autores principales: Gao, Hao, Wang, Jian, Jiang, Chunxiao, Zhang, Xudong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4279476/
https://www.ncbi.nlm.nih.gov/pubmed/25350505
http://dx.doi.org/10.3390/s141120165
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author Gao, Hao
Wang, Jian
Jiang, Chunxiao
Zhang, Xudong
author_facet Gao, Hao
Wang, Jian
Jiang, Chunxiao
Zhang, Xudong
author_sort Gao, Hao
collection PubMed
description In this paper, we explore a new resource called multi-target diversity to optimize the performance of multiple input multiple output (MIMO) radar with widely separated antennas for detecting multiple targets. In particular, we allocate antennas of the MIMO radar to probe different targets simultaneously in a flexible manner based on the performance metric of relative entropy. Two antenna allocation schemes are proposed. In the first scheme, each antenna is allocated to illuminate a proper target over the entire illumination time, so that the detection performance of each target is guaranteed. The problem is formulated as a minimum makespan scheduling problem in the combinatorial optimization framework. Antenna allocation is implemented through a branch-and-bound algorithm and an enhanced factor 2 algorithm. In the second scheme, called antenna-time allocation, each antenna is allocated to illuminate different targets with different illumination time. Both antenna allocation and time allocation are optimized based on illumination probabilities. Over a large range of transmitted power, target fluctuations and target numbers, both of the proposed antenna allocation schemes outperform the scheme without antenna allocation. Moreover, the antenna-time allocation scheme achieves a more robust detection performance than branch-and-bound algorithm and the enhanced factor 2 algorithm when the target number changes.
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spelling pubmed-42794762015-01-15 Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection Gao, Hao Wang, Jian Jiang, Chunxiao Zhang, Xudong Sensors (Basel) Article In this paper, we explore a new resource called multi-target diversity to optimize the performance of multiple input multiple output (MIMO) radar with widely separated antennas for detecting multiple targets. In particular, we allocate antennas of the MIMO radar to probe different targets simultaneously in a flexible manner based on the performance metric of relative entropy. Two antenna allocation schemes are proposed. In the first scheme, each antenna is allocated to illuminate a proper target over the entire illumination time, so that the detection performance of each target is guaranteed. The problem is formulated as a minimum makespan scheduling problem in the combinatorial optimization framework. Antenna allocation is implemented through a branch-and-bound algorithm and an enhanced factor 2 algorithm. In the second scheme, called antenna-time allocation, each antenna is allocated to illuminate different targets with different illumination time. Both antenna allocation and time allocation are optimized based on illumination probabilities. Over a large range of transmitted power, target fluctuations and target numbers, both of the proposed antenna allocation schemes outperform the scheme without antenna allocation. Moreover, the antenna-time allocation scheme achieves a more robust detection performance than branch-and-bound algorithm and the enhanced factor 2 algorithm when the target number changes. MDPI 2014-10-27 /pmc/articles/PMC4279476/ /pubmed/25350505 http://dx.doi.org/10.3390/s141120165 Text en © 2014 by the authors; licensee MDPI, Basel, Switzerland. https://creativecommons.org/licenses/by/3.0/This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/ (https://creativecommons.org/licenses/by/3.0/) ).
spellingShingle Article
Gao, Hao
Wang, Jian
Jiang, Chunxiao
Zhang, Xudong
Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection
title Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection
title_full Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection
title_fullStr Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection
title_full_unstemmed Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection
title_short Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection
title_sort antenna allocation in mimo radar with widely separated antennas for multi-target detection
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4279476/
https://www.ncbi.nlm.nih.gov/pubmed/25350505
http://dx.doi.org/10.3390/s141120165
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