Differential beamformers derived from approximate performance measures

Tao Long, Jacob Benesty, Jingdong Chen, Israel Cohen

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Differential microphone arrays (DMAs) have attracted great interest over the past two decades, since this type of arrays can form frequency-invariant beampatterns and achieve maximum directional gains with a given number of sensors. Generally, the design of DMA beamformers involves optimization of some performance measures such as the directivity factor (DF), front-to-back ratio (FBR), white noise gain (WNG), etc. In this paper, we develop approximate performance measures, which basically approximate the integral part in the exact performance measures with a weighted sum. This approximation gets finer and finer as more points are used. When applied to the design of DMAs, the major advantages of using these approximate measures is that the design problem is simplified and many differential beamformers, including commonly-used standard ones, can be easily derived.

源语言英语
主期刊名16th International Workshop on Acoustic Signal Enhancement, IWAENC 2018 - Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
66-70
页数5
ISBN(电子版)9781538681510
DOI
出版状态已出版 - 2 11月 2018
活动16th International Workshop on Acoustic Signal Enhancement, IWAENC 2018 - Tokyo, 日本
期限: 17 9月 201820 9月 2018

出版系列

姓名16th International Workshop on Acoustic Signal Enhancement, IWAENC 2018 - Proceedings

会议

会议16th International Workshop on Acoustic Signal Enhancement, IWAENC 2018
国家/地区日本
Tokyo
时期17/09/1820/09/18

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