Efficient Wideband DOA Estimation Through Function Evaluation Techniques
This paper presents an efficient evaluation method for the functions involved in the computation of direction-of-arrival (DOA) estimators. The method is a combination of the Chebyshev and barycentric interpolators, and makes use of the Discrete Cosine Transform (DCT). We present two applications of...
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Online Access: | http://hdl.handle.net/10045/75188 https://doi.org/10.1109/TSP.2018.2824256 |
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ftunivalicante:oai:rua.ua.es:10045/75188 2023-05-15T16:01:33+02:00 Efficient Wideband DOA Estimation Through Function Evaluation Techniques Selva, Jesus Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal Señales, Sistemas y Telecomunicación 2018-04-06 http://hdl.handle.net/10045/75188 https://doi.org/10.1109/TSP.2018.2824256 eng eng IEEE https://doi.org/10.1109/TSP.2018.2824256 IEEE Transactions on Signal Processing. 2018, 66(12): 3112-3123. doi:10.1109/TSP.2018.2824256 1053-587X (Print) 1941-0476 (Online) http://hdl.handle.net/10045/75188 doi:10.1109/TSP.2018.2824256 A9342053 © 2018 IEEE info:eu-repo/semantics/openAccess Wideband DOA estimation Maximum likelihood estimation Chebyshev interpolation Newton-type method Teoría de la Señal y Comunicaciones info:eu-repo/semantics/article 2018 ftunivalicante https://doi.org/10.1109/TSP.2018.2824256 2020-06-05T13:19:19Z This paper presents an efficient evaluation method for the functions involved in the computation of direction-of-arrival (DOA) estimators. The method is a combination of the Chebyshev and barycentric interpolators, and makes use of the Discrete Cosine Transform (DCT). We present two applications of this method. The first is for reducing the complexity of the line searches in three wideband DOA estimators: Incoherent Multiple Signal Classification (IC-MUSIC), Test of Orthogonality of Projected Subspaces (TOPS), and Deterministic Maximum Likelihood (DML). And the second application is a procedure to compress the wideband DML cost function, so that it is formed by just a few summands. This compression entails a reduction in complexity by a large factor. The evaluation method and its applications are numerically assessed in several numerical examples. Article in Journal/Newspaper DML RUA - Repositorio Institucional de la Universidad de Alicante IEEE Transactions on Signal Processing 66 12 3112 3123 |
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Open Polar |
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RUA - Repositorio Institucional de la Universidad de Alicante |
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ftunivalicante |
language |
English |
topic |
Wideband DOA estimation Maximum likelihood estimation Chebyshev interpolation Newton-type method Teoría de la Señal y Comunicaciones |
spellingShingle |
Wideband DOA estimation Maximum likelihood estimation Chebyshev interpolation Newton-type method Teoría de la Señal y Comunicaciones Selva, Jesus Efficient Wideband DOA Estimation Through Function Evaluation Techniques |
topic_facet |
Wideband DOA estimation Maximum likelihood estimation Chebyshev interpolation Newton-type method Teoría de la Señal y Comunicaciones |
description |
This paper presents an efficient evaluation method for the functions involved in the computation of direction-of-arrival (DOA) estimators. The method is a combination of the Chebyshev and barycentric interpolators, and makes use of the Discrete Cosine Transform (DCT). We present two applications of this method. The first is for reducing the complexity of the line searches in three wideband DOA estimators: Incoherent Multiple Signal Classification (IC-MUSIC), Test of Orthogonality of Projected Subspaces (TOPS), and Deterministic Maximum Likelihood (DML). And the second application is a procedure to compress the wideband DML cost function, so that it is formed by just a few summands. This compression entails a reduction in complexity by a large factor. The evaluation method and its applications are numerically assessed in several numerical examples. |
author2 |
Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal Señales, Sistemas y Telecomunicación |
format |
Article in Journal/Newspaper |
author |
Selva, Jesus |
author_facet |
Selva, Jesus |
author_sort |
Selva, Jesus |
title |
Efficient Wideband DOA Estimation Through Function Evaluation Techniques |
title_short |
Efficient Wideband DOA Estimation Through Function Evaluation Techniques |
title_full |
Efficient Wideband DOA Estimation Through Function Evaluation Techniques |
title_fullStr |
Efficient Wideband DOA Estimation Through Function Evaluation Techniques |
title_full_unstemmed |
Efficient Wideband DOA Estimation Through Function Evaluation Techniques |
title_sort |
efficient wideband doa estimation through function evaluation techniques |
publisher |
IEEE |
publishDate |
2018 |
url |
http://hdl.handle.net/10045/75188 https://doi.org/10.1109/TSP.2018.2824256 |
genre |
DML |
genre_facet |
DML |
op_relation |
https://doi.org/10.1109/TSP.2018.2824256 IEEE Transactions on Signal Processing. 2018, 66(12): 3112-3123. doi:10.1109/TSP.2018.2824256 1053-587X (Print) 1941-0476 (Online) http://hdl.handle.net/10045/75188 doi:10.1109/TSP.2018.2824256 A9342053 |
op_rights |
© 2018 IEEE info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1109/TSP.2018.2824256 |
container_title |
IEEE Transactions on Signal Processing |
container_volume |
66 |
container_issue |
12 |
container_start_page |
3112 |
op_container_end_page |
3123 |
_version_ |
1766397354337894400 |