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    Frequency Invariant Beamformer Robust Against Array Element Mismatch

    Access Status
    Fulltext not available
    Authors
    Dam, Hai
    Rimantho, D.
    Nordholm, Sven
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Dam, Hai Huyen and Rimantho, Dedi and Nordholm, Sven. 2013. Frequency Invariant Beamformer Robust Against Array Element Mismatch, in 9th International Conference on Information, Communications and Signal Processing, Dec 10-13 2013, pp. 1-4. Tainan, Taiwan: ICICS.
    Source Title
    International Conference on Information, Communications and Signal Processing
    Source Conference
    International Conference on Information, Communications and Signal Processing
    DOI
    10.1109/ICICS.2013.6782891
    URI
    http://hdl.handle.net/20.500.11937/16820
    Collection
    • Curtin Research Publications
    Abstract

    This paper extends the design of frequency invariant beamformer by incorporating robustness in the design formulation to cater for array element mismatches and other non-ideal characteristics. In this approach, a 2-norm constraint on the filter weight is imposed into the design optimization problem. The constraints limit the norm of the beamformer coefficients and thus reduce the sensitivity of the beamformer towards then on-ideal characteristics of the microphones. Design examples and comparisons are presented to illustrate the effectiveness of our approach.

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