On the Design of Robust Steerable Frequency-Invariant Beampatterns with Concentric Circular Microphone Arrays

Gongping Huang, Jingdong Chen, Jacob Benesty

科研成果: 书/报告/会议事项章节会议稿件同行评审

25 引用 (Scopus)

摘要

This paper studies the problem of frequency-invariant beamforming with concentric circular microphone arrays (CCMAs). We develop a beamforming algorithm based on an optimal approximation of the beamformer's beampattern with the Jacobi-Anger expansion. In comparison with the existing frequency-invariant beamformers with either circular microphone arrays (CMAs) or CCMAs, the developed algorithm offers the following advantages: 1) it can mitigate the deep-null problem encountered in CMAs and therefore has a consistent directivity factor over the frequency range of speech signals; 2) it is more flexible in terms of steering flexibility and the resulting beampattern can be steered to any direction; and 3) it does not require the microphones in different rings of the CCMA to be aligned, which is very useful in practice, particularly when microphone arrays with small and compact apertures have to be used.

源语言英语
主期刊名2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 - Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
506-510
页数5
ISBN(印刷版)9781538646588
DOI
出版状态已出版 - 10 9月 2018
活动2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 - Calgary, 加拿大
期限: 15 4月 201820 4月 2018

出版系列

姓名ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
2018-April
ISSN(印刷版)1520-6149

会议

会议2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018
国家/地区加拿大
Calgary
时期15/04/1820/04/18

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