Closed-Form Single Source Direction-of-Arrival Estimator Using First-Order Relative Harmonic Coefficients

Hu, Yonggang; Gannot, Sharon

doi:10.1109/icassp43922.2022.9746143

Cited by 11 publications

(1 citation statement)

References 26 publications

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“…Different approaches exploiting RHC were published in the literature, including solutions based on grid search [22], gradient descent [23] and Gaussian process [21]. In [24,25], computationally efficient approaches employing a search decouple on azimuth and elevation were introduced, while [26] provides a closed-form solution limited to first-order SHD. Inspired by the effectiveness of RTF and RHC as features for localization, in [27] the authors introduced the relative sound pressure MUSIC (RMUSIC) and its SHD version (SHD-RMUSIC) showing improved performance with respect to the traditional methods.…”

Section: Introductionmentioning

confidence: 99%

Acoustic source localization in the spherical harmonics domain exploiting low-rank approximations

Cobos¹,

Pezzoli²,

Antonacci³

et al. 2023

Preprint

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Acoustic signal processing in the spherical harmonics domain (SHD) is an active research area that exploits the signals acquired by higher order microphone arrays. A very important task is that concerning the localization of active sound sources. In this paper, we propose a simple yet effective method to localize prominent acoustic sources in adverse acoustic scenarios. By using a proper normalization and arrangement of the estimated spherical harmonic coefficients, we exploit low-rank approximations to estimate the far field modal directional pattern of the dominant source at each time-frame. The experiments confirm the validity of the proposed approach, with superior performance compared to other recent SHD-based approaches.

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