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Multi-Source DOA Estimation Using Higher-Order Pseudo Intensity Vector on a Spherical Microphone Array
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DOI：10.1109/LSP.2024.3428361.png)
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Abstract
En 中文
Direction-of-arrival (DOA) estimation in environments with multiple sources and strong reverberation remains a great challenge. In this letter, we present a novel feature, the higher-order pseudo-intensity vector (HOPIV), derived from recordings obtained with a spherical microphone array. By exploiting the unique properties of the reactive intensity vector, which is derived from the HOPIV, we present a method to identify time-frequency points that are dominated by the direct path. We then propose a DOA estimation method that leverages the HOPIV's high spatial resolution for improving DOA estimation performance. Simulations and experiments show that the proposed method is able to yield superior performance compared to state-of-the-art techniques, even in highly reverberant environments.
Keywords:
Direction-of-arrival estimation
Vectors
Estimation
Harmonic analysis
Microphone arrays
Indexes
Accuracy
Direct path dominant points
direction of arrival
higher-order pseudo intensity vector
reactive intensity vector
spherical microphone array
Journal
IF:
9.6
Papers:
1.1W
Citations:
1.7W