Beamformer design with sparse filters

Ming Jie Gao, Ka Fai Cedric Yiu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In designing broadband beamformers, when the number of microphone increases and the filters are long, the complexity can grow significantly. It is advantageous if many of the filter coefficients are zeroes so that the implementation can be executed with less computation. In this paper, the sparse design of beamformers is studied. We employ the penalty decomposition method to constrain the l0-norm of the filters and investigate the performance of the designed frequency responses. Numerical results show that sparsity of the designed beamformers can be reduced without affecting very much of the performance.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Digital Signal Processing, DSP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1135-1137
Number of pages3
ISBN (Electronic)9781479980581, 9781479980581
DOIs
Publication statusPublished - 10 Sep 2015
EventIEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore
Duration: 21 Jul 201524 Jul 2015

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2015-September

Conference

ConferenceIEEE International Conference on Digital Signal Processing, DSP 2015
Country/TerritorySingapore
CitySingapore
Period21/07/1524/07/15

Keywords

  • penalty decomposition
  • sparse beamformer design

ASJC Scopus subject areas

  • Signal Processing

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