Double sided cone array for spherical harmonic analysis of wavefields

Aastha Gupta*, Thushara D. Abhayapala

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    8 Citations (Scopus)

    Abstract

    This paper presents a double sided conical sensor array for common array processing applications. We show that double sided cone arrays are specially suited for extraction of spherical harmonic components of three dimensional spatial wave-fields. We use a less known orthogonal relationship of spherical Bessel functions to develop a novel analysis equation for spherical harmonic extraction. As an illustration, we design and simulate a 5th order spherical harmonic decomposition array using 89 microphones to operate over a frequency band of an octave.

    Original languageEnglish
    Title of host publication2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages77-80
    Number of pages4
    ISBN (Print)9781424442966
    DOIs
    Publication statusPublished - 2010
    Event2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Dallas, TX, United States
    Duration: 14 Mar 201019 Mar 2010

    Publication series

    NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    ISSN (Print)1520-6149

    Conference

    Conference2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010
    Country/TerritoryUnited States
    CityDallas, TX
    Period14/03/1019/03/10

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