Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking
This paper presents an algorithm for the estimation of the direction of arrival (DOA) in underdetermined situations, that is, there is more sources than sensors. The algorithm performs the estimation in an iterative manner, each iteration consists of two-steps: first estimation of the DOA of a domin...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2010/450487 |
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| _version_ | 1832560784245260288 |
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| author | Peter Jančovič Xin Zou Münevver Köküer |
| author_facet | Peter Jančovič Xin Zou Münevver Köküer |
| author_sort | Peter Jančovič |
| collection | DOAJ |
| description | This paper presents an algorithm for the estimation of the direction of arrival (DOA) in underdetermined
situations, that is, there is more sources than sensors. The algorithm performs the estimation in an iterative manner, each iteration consists of two-steps: first estimation of the DOA of a dominant source via the Independent Component Analysis and then removal of the detected source from the mixture via time-frequency masking. Experiments, performed using speech signals mixed in real environment when only two microphones are used but three and four sources are present, demonstrate that the proposed algorithm can estimate the DOAs more accurately than two previously used underdetermined DOA algorithms. |
| format | Article |
| id | doaj-art-0b9980758119418e8faa0bcc8509ce08 |
| institution | Kabale University |
| issn | 2090-0147 2090-0155 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-0b9980758119418e8faa0bcc8509ce082025-02-03T01:26:38ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552010-01-01201010.1155/2010/450487450487Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency MaskingPeter Jančovič0Xin Zou1Münevver Köküer2School of Electronic, Electrical & Computer Engineering, University of Birmingham, Birmingham, B15 2TT, UKSchool of Electronic, Electrical & Computer Engineering, University of Birmingham, Birmingham, B15 2TT, UKSchool of Electronic, Electrical & Computer Engineering, University of Birmingham, Birmingham, B15 2TT, UKThis paper presents an algorithm for the estimation of the direction of arrival (DOA) in underdetermined situations, that is, there is more sources than sensors. The algorithm performs the estimation in an iterative manner, each iteration consists of two-steps: first estimation of the DOA of a dominant source via the Independent Component Analysis and then removal of the detected source from the mixture via time-frequency masking. Experiments, performed using speech signals mixed in real environment when only two microphones are used but three and four sources are present, demonstrate that the proposed algorithm can estimate the DOAs more accurately than two previously used underdetermined DOA algorithms.http://dx.doi.org/10.1155/2010/450487 |
| spellingShingle | Peter Jančovič Xin Zou Münevver Köküer Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking Journal of Electrical and Computer Engineering |
| title | Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking |
| title_full | Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking |
| title_fullStr | Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking |
| title_full_unstemmed | Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking |
| title_short | Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking |
| title_sort | underdetermined doa estimation via independent component analysis and time frequency masking |
| url | http://dx.doi.org/10.1155/2010/450487 |
| work_keys_str_mv | AT peterjancovic underdetermineddoaestimationviaindependentcomponentanalysisandtimefrequencymasking AT xinzou underdetermineddoaestimationviaindependentcomponentanalysisandtimefrequencymasking AT munevverkokuer underdetermineddoaestimationviaindependentcomponentanalysisandtimefrequencymasking |