On the Design of Frequency-Invariant Beampatterns With Uniform Circular Microphone Arrays

@article{Huang2017OnTD,
  title={On the Design of Frequency-Invariant Beampatterns With Uniform Circular Microphone Arrays},
  author={Gongping Huang and Jacob Benesty and Jingdong Chen},
  journal={IEEE/ACM Transactions on Audio, Speech, and Language Processing},
  year={2017},
  volume={25},
  pages={1140-1153}
}
This paper deals with two critical issues about uniform circular arrays UCAs: frequency-invariant response and steering flexibility. It focuses on some optimal design of frequency-invariant beampatterns in any desired direction along the sensor plane. The major contributions are as follows. 1 We explain how to include the steering information in the desired directivity pattern. 2 We show that the optimal approximation of the beamformer's beampattern with a UCA from a least-squares error… CONTINUE READING

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