Broadband nearfield beamforming using a radial beampattern transformation

  title={Broadband nearfield beamforming using a radial beampattern transformation},
  author={Rodney A. Kennedy and Thushara Dheemantha Abhayapala and Darren B. Ward},
  journal={IEEE Trans. Signal Processing},
This paper presents a new method of designing a beamformer having a desired nearfield broadband beampattern. The methodology uses the spherical harmonic solution to the wave equation to transform the desired nearfield beampattern to an equivalent farfield beampattern. A farfield beamformer is then designed for a transformed farfield beampattern that, if achieved, gives the desired nearfield pattern exactly. Salient features of the new method are as follows. i) The nearfield patterns can be… CONTINUE READING
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