Array Geometry Optimization for Region-of-Interest Broadband Beamforming

Yuval Konforti, Israel Cohen, Baruch Berdugo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Optimization of a microphone array geometry has an important impact on the beamforming performance. Though the environment settings may change in time, microphone locations are typically preserved. Thus, the selected locations are of significant importance. Moreover, if the source of interest emits a broadband signal from a location that varies in time, finding the optimal geometry becomes a challenging task. This paper introduces an efficient algorithm to find the optimal placements of microphones in a nonuniform linear array for broadband high directivity beamforming. The proposed method maintains high white noise gain (WNG) for sufficient robustness and considers several look directions in a region-of-interest (ROI) for a moving source. Compared to standard designs, our design achieves higher directivity toward any look direction in the ROI.

Original languageEnglish
Title of host publicationInternational Workshop on Acoustic Signal Enhancement, IWAENC 2022 - Proceedings
ISBN (Electronic)9781665468671
DOIs
StatePublished - 2022
Event17th International Workshop on Acoustic Signal Enhancement, IWAENC 2022 - Bamberg, Germany
Duration: 5 Sep 20228 Sep 2022

Publication series

NameInternational Workshop on Acoustic Signal Enhancement, IWAENC 2022 - Proceedings

Conference

Conference17th International Workshop on Acoustic Signal Enhancement, IWAENC 2022
Country/TerritoryGermany
CityBamberg
Period5/09/228/09/22

Keywords

  • Array processing
  • microphone array optimization
  • robust superdirective beamforming

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Acoustics and Ultrasonics

Fingerprint

Dive into the research topics of 'Array Geometry Optimization for Region-of-Interest Broadband Beamforming'. Together they form a unique fingerprint.

Cite this