Localizing Near and Far Field Acoustic Sources with Distributed Microhone Arrays

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Abstract

In this paper, we consider the problem of acoustic source localization using distributed microphone arrays. Time differences of arrival (TDOAs) are estimated using a recently proposed method based on joint direction of arrival (DOA) and range estimation. The TDOAs are used to estimate the location of an acoustic source using a recently proposed method, based on a 4D parameter space defined by the 3D location of the source, and the TDOA. The performance of the proposed method for acoustic source localization is compared to generalized cross-correlation with phase transform (GCC-PHAT), and a method based on joint DOA and pitch estimation, using synthesized harmonic signals with varying source position. Results show a decrease in the error of the estimated position when joint DOA and range estimation is used for TDOA estimation, compared to the GCC-PHAT and joint DOA and pitch methods.
Original languageEnglish
JournalAsilomar Conference on Signals, Systems and Computers. Conference Record
Pages (from-to)491-495
Number of pages5
ISSN1058-6393
DOIs
Publication statusPublished - 2014
Event2014 48th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: 2 Nov 20145 Nov 2014

Conference

Conference2014 48th Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period02/11/201405/11/2014

Keywords

  • Source Localization
  • Speech Processing
  • TDOA Estimation

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