Evaluation and comparison of three source direction-of-arrival estimators using relative harmonic coefficients

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    6 Citations (Scopus)

    Abstract

    A spherical harmonics domain source feature called relative harmonic coefficients (RHC) has recently been applied to address the source direction-of-arrival (DOA) estimation problem. This paper presents a compact evaluation and comparison between two existing RHC based DOA estimators: (i) a method using a full grid search over the two-dimensional (2-D) directional space, (ii) a decoupled estimator which uses one-dimensional (1-D) search to separately localize the source’s elevation and azimuth. We also propose a new estimator using a gradient descent search over the 2-D directional grid space. Extensive experiments in both simulated and real-life environments are conducted to examine and analyze the performance of all the underlying DOA estimators. Two objective metrics, including localization accuracy and algorithm complexity, are adopted for an evaluation and comparison between all estimators.

    Original languageEnglish
    Pages (from-to)815-819
    Number of pages5
    JournalProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
    Volume2021-June
    DOIs
    Publication statusPublished - 2021
    Event2021 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2021 - Virtual, Toronto, Canada
    Duration: 6 Jun 202111 Jun 2021

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