Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals

In the study of the joint estimation of time-frequency signature and direction of arrival (DOA) for multicomponent chirp signals, an estimation method based on spatial time-frequency distributions (STFDs) is proposed in this paper. Firstly, array signal model for multicomponent chirp signals is pres...

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Detalles Bibliográficos
Autores principales: Zhao, Ziyue, Liu, Congfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4897410/
https://www.ncbi.nlm.nih.gov/pubmed/27382610
http://dx.doi.org/10.1155/2014/937139
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author Zhao, Ziyue
Liu, Congfeng
author_facet Zhao, Ziyue
Liu, Congfeng
author_sort Zhao, Ziyue
collection PubMed
description In the study of the joint estimation of time-frequency signature and direction of arrival (DOA) for multicomponent chirp signals, an estimation method based on spatial time-frequency distributions (STFDs) is proposed in this paper. Firstly, array signal model for multicomponent chirp signals is presented and then array processing is applied in time-frequency analysis to mitigate cross-terms. According to the results of the array processing, Hough transform is performed and the estimation of time-frequency signature is obtained. Subsequently, subspace method for DOA estimation based on STFD matrix is achieved. Simulation results demonstrate the validity of the proposed method.
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spelling pubmed-48974102016-07-05 Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals Zhao, Ziyue Liu, Congfeng Int Sch Res Notices Research Article In the study of the joint estimation of time-frequency signature and direction of arrival (DOA) for multicomponent chirp signals, an estimation method based on spatial time-frequency distributions (STFDs) is proposed in this paper. Firstly, array signal model for multicomponent chirp signals is presented and then array processing is applied in time-frequency analysis to mitigate cross-terms. According to the results of the array processing, Hough transform is performed and the estimation of time-frequency signature is obtained. Subsequently, subspace method for DOA estimation based on STFD matrix is achieved. Simulation results demonstrate the validity of the proposed method. Hindawi Publishing Corporation 2014-11-09 /pmc/articles/PMC4897410/ /pubmed/27382610 http://dx.doi.org/10.1155/2014/937139 Text en Copyright © 2014 Z. Zhao and C. Liu. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zhao, Ziyue
Liu, Congfeng
Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals
title Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals
title_full Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals
title_fullStr Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals
title_full_unstemmed Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals
title_short Joint Estimation of Time-Frequency Signature and DOA Based on STFD for Multicomponent Chirp Signals
title_sort joint estimation of time-frequency signature and doa based on stfd for multicomponent chirp signals
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4897410/
https://www.ncbi.nlm.nih.gov/pubmed/27382610
http://dx.doi.org/10.1155/2014/937139
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AT liucongfeng jointestimationoftimefrequencysignatureanddoabasedonstfdformulticomponentchirpsignals

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