Theoretical Analysis of Quality of Conventional Beamforming for Phased Microphone Arrays
<|reference_start|>Theoretical Analysis of Quality of Conventional Beamforming for Phased Microphone Arrays: A theoretical study is performed to analyze the directional response of different types of microphone array designs. 1-D (linear) and 2-D (planar) microphone array types are considered, and the delay and sum beamforming and conventional beamforming techniques are employed to localize the sound source. A non-dimensional parameter, G, is characterized to simplify and standardize the rejection performance of both 1-D and 2-D microphone arrays as a function of array geometry and sound source parameters. This parameter G is then used to determine an improved design of a 2-D microphone array for far-field sound localization. One such design, termed the Equi-area array is introduced and analyzed in detail. The design is shown to have an advantageous rejection performance compared to other conventionally used 2-D planar microphone arrays.<|reference_end|>
@article{khatri2024theoretical,
    title={Theoretical Analysis of Quality of Conventional Beamforming for Phased
  Microphone Arrays},
    author={Dheepak Khatri and Kenneth Granlund},
    journal={arXiv preprint arXiv:2403.17376},
    year={2024},
    archivePrefix={arXiv},
    eprint={2403.17376},
    primaryClass={cs.SD eess.AS}
}