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

Yonggang Hu; Sharon Gannot

ICASSP 2022accepted0 citations

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

Abstract

The relative harmonic coefficients (RHC), recently introduced as a multi-microphone spatial feature, demonstrates promising performance when applied to direction-of-arrival (DOA) estimation. All existing RHC-based DOA estimators suffer from a resolution limitation due to the inherent grid-based search. In contrast, this paper utilizes the first-order RHC to propose a closed-form DOA estimator by deriving a direction vector, which points towards to the desired source direction. Two objective metrics, namely localization accuracy and algorithm complexity, are adopted for the evaluation and comparison with existing RHC-based and intensity based localization approaches, in both simulated and real-life environments.

BibTeX

@inproceedings{icassp2022_closedformsingle,
  title = {Closed-Form Single Source Direction-of-Arrival Estimator Using First-Order Relative Harmonic Coefficients},
  author = {Yonggang Hu and Sharon Gannot},
  booktitle = {ICASSP 2022},
  year = {2022}
}