Earticle

초록

영어

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.

목차

Abstract
 1. Introduction
 2. Time Difference of Arrival
 3. Partial Cross Correlation
  3.1 Relevant Lag Range
  3.2 Signal Energy Estimation
  3.3 Partial Cross Correlation using Energy Estimation
 4. Azimuth Computation
 5. Experiment and Discussion
 6. Conclusion
 References

키워드

저자

• Mariam Yiwere [ Department of Computer Engineering, Hanbat National University ]
• Eun Joo Rhee [ Department of Computer Engineering, Hanbat National University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JITAM [Journal of Information Technology Applications and Management]

• 간기

  격월간

• pISSN

  1598-6284

• eISSN

  2508-1209

• 수록기간

  1999~2026

• 십진분류

  KDC 005 DDC 005