Journal of Information Technology Applications and Management

  • 제22권3호
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  • Pages.105-114
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  • 2015
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  • 1598-6284(pISSN)
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  • 2508-1209(eISSN)
한국데이터전략학회 (Korea Data Strategy Society)
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Fast Time Difference of Arrival Estimation for Sound Source Localization using Partial Cross Correlation

  • Yiwere, Mariam (Department of Computer Engineering, Hanbat National University) ;
  • Rhee, Eun Joo (Department of Computer Engineering, Hanbat National University)
  • 투고 : 2015.08.31
  • 심사 : 2015.09.17
  • 발행 : 2015.09.30
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초록

This paper presents a fast Time Difference of Arrival (TDOA) estimation for sound source localization. TDOA is the time difference between the arrival times of a signal at two sensors. We propose a partial cross correlation method to increase the speed of TDOA estimation for sound source localization. We do this by predicting which part of the cross correlation function contains the required TDOA value with the help of the signal energies, and then we compute the cross correlation function in that direction only. Experiments show approximately 50% reduction in the cross correlation computation time thereby increasing the speed of TDOA computation. This makes it very relevant for real world surveillance.

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참고문헌

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