Optimal Modal Beamforming for Spherical Microphone Arrays

  title={Optimal Modal Beamforming for Spherical Microphone Arrays},
  author={Shefeng Yan and Haohai Sun and U. Peter Svensson and Xiaochuan Ma and J. M. Hovem},
  journal={IEEE Transactions on Audio, Speech, and Language Processing},
An approach to optimal array pattern synthesis based on spherical harmonics is presented. The array processing problem in the spherical harmonics domain is expressed with a matrix formulation. The beamformer weight vector design problem is written as a multiply constrained problem, so that the resulting beamformer can provide a suitable trade-off among multiple conflicting performance measures such as directivity index, robustness, array gain, sidelobe level, mainlobe width, and so on. The… CONTINUE READING
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Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography

  • E. G. Williams
  • New York: Academic,
  • 1999
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