원문정보
보안공학연구지원센터(IJGDC)
International Journal of Grid and Distributed Computing
Vol.9 No.6
2016.06
pp.247-258
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
Before we apply the Time Difference of Arrival (TDOA) to locate sound target, we should have known arrival time of each sensor node at first, we present two algorithms based on the cumulative sum to estimate the arrival time. We analysis influences of location accuracy, caused by five sensors position algorithm and the distance of each node. Taking these several factors, we find the best distance between sound source and node and propose a node organizational method-retest measure method. According to the consequence of first measure, organize node to locate again. The result of simulation shows that these algorithms are in effect and the retest measure can reduce deviation effectively.
목차
Abstract
1. Introduction
2. Mathematical Model of Acoustic Events
2.1. Sound Model
2.2. Signal Distribution
2.3 Statistical Framework
3. Arrival Time Estimation
3.1 Review of Cumulative Sum Algorithm
3.2 Parameter Estimates
3.3 Discussion
3.4 Threshold Selection
4. Sound Source Location and Organizational Process of System
4.1 The Principle of Sound Source Location
4.2. The Principle of System Operation
4.3. Error Analysis
4.4 Emulation
5. Conclusion
Acknowledgements
References
1. Introduction
2. Mathematical Model of Acoustic Events
2.1. Sound Model
2.2. Signal Distribution
2.3 Statistical Framework
3. Arrival Time Estimation
3.1 Review of Cumulative Sum Algorithm
3.2 Parameter Estimates
3.3 Discussion
3.4 Threshold Selection
4. Sound Source Location and Organizational Process of System
4.1 The Principle of Sound Source Location
4.2. The Principle of System Operation
4.3. Error Analysis
4.4 Emulation
5. Conclusion
Acknowledgements
References
저자정보
참고문헌
자료제공 : 네이버학술정보