This paper introduces a method to estimate the direction of arrival of an acoustic signal based on finding maximum power in iteratively reduced regions of a spherical surface. A plane wave decomposition beamformer is used to produce power estimates at sparsely distributed points on the sphere. Iterating beam orientation based on the orientation of maximum energy produces accurate localization results. The method is tested using varying reverberation times, source-receiver distances, and angular separation of multiple sources and compared against a pseudo-intensity vector estimator. Results demonstrate that this method is suitable for integration into real-time telematic frameworks, especially in reverberant conditions.
https://www.aes.org/e-lib/browse.cfm?elib=21086
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!
