DOA estimation by 3-D microphone array in the presence of spatial aliasing

Ai Kijima, Yasue Mitsukura, Nozomu Hamada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study proposes a method to estimate the direction of arrival (DOA) for multiple sources by using microphone array under aliasing condition. Many conventional DOA estimation methods based on the sparseness of time-frequency (T-F) components of speech signals have to limit the sensor distance because of avoiding spatial aliasing due to the use of phase difference. Here we propose a 3-dimentional DOA or both azimuth and elevation angles estimation method capable to treat even in the presence of spatial aliasing. To cope with this problem, a reliable T-F cell selection and new bandwidth control in the kernel density estimation. In order to verify the effectiveness of the proposed method, experimental simulations have been performed. The simulation results show that the proposed DOA estimation gives accurate estimation even for spatial aliasing cases.

Original languageEnglish
Title of host publicationProceedings - 2013 IEEE Conference on Systems, Process and Control, ICSPC 2013
PublisherIEEE Computer Society
Pages209-213
Number of pages5
ISBN (Print)9781479922093
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 IEEE Conference on Systems, Process and Control, ICSPC 2013 - Kuala Lumpur, Malaysia
Duration: 2013 Dec 132013 Dec 15

Publication series

NameProceedings - 2013 IEEE Conference on Systems, Process and Control, ICSPC 2013

Other

Other2013 IEEE Conference on Systems, Process and Control, ICSPC 2013
CountryMalaysia
CityKuala Lumpur
Period13/12/1313/12/15

Keywords

  • DOA estimation
  • microphone array
  • spatial aliasing
  • time-frequency analysis

ASJC Scopus subject areas

  • Control and Systems Engineering

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