The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Estimation Technique of Time Difference of Acoustic Signal by phase delay in Underwater Environments

수중 환경에서의 위상 지연을 이용한 음향 신호의 시간 차이 추정 기법

  • Received : 2016.02.26
  • Accepted : 2016.04.24
  • Published : 2016.04.28
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Abstract

Recently, UWAC(: UnderWater Acoustic Communication) has been studied by many scholars and researchers. There are several method to estimate the time-difference between the two signals such estimating as the arrival time of the first non-background segment in both signals and calculate the temporal difference, calculating the cross-correlation between the two signal to infer the time-lagged, and estimating the phase delay to infer the time difference. In this paper, we present estimating method by the phase delay to infer the time difference in two signals.

최근에 UWAC에 대한 연구가 많은 연구자와 학자들에 의해 연구되고 있다. 수중 환경에서 두 신호 사이의 시간 차이 추정 기법은 배경이 없는 영역에서 도착 시간 추정, 상관관계 추정, 그리고 시간 지연 추정의 3가지가 제시되어 있다. 이 논문에서는 위상 지연에 기반하여 두 신호 사이에서의 시간 차이 추정 기법을 제시한다.

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References

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