원문정보
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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
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
저자정보
참고문헌
자료제공 : 네이버학술정보