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Eigenbeam-ESPRIT for DOA-Vector Estimation
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DOI：10.1109/LSP.2019.2898775.png)
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摘要
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Several techniques exist to estimate the directions of arrival (DOAs) of sound sources captured with a spherical mi crophone array. The eigenbeam rotational invariance technique (EB-ESPRIT) uses recurrence relations of spherical harmonics to estimate the DOAs. In this letter, we propose a new EB-ESPRIT method which uses three recurrence relations and a joint diagonalization procedure to estimate the unit-vectors pointing to the source DOAs. We evaluate the angular estimation errors of the proposed method under noisy and reverberant conditions and compare it to existing EB-ESPRIT methods. We find that our pro posed method can estimate the source DOAs with higher accuracy compared to the discussed existing EB-ESPRIT methods, and the estimation accuracy does not depend on the source DOAs.
Keyword:
Direction of arrival estimation
EB-ESPRIT
spherical harmonics domain
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期刊
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9.6
论文数:
1.1W
被引数:
1.7W
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