Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Enhancement of Source Localization Performance using PMP Method in a Multipath Environment

다중경로 환경에서 PMP기법을 이용한 음원의 위치 추정성능 향상

  • Received : 2014.01.06
  • Accepted : 2014.03.08
  • Published : 2014.04.05
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Abstract

Source localization is an important problem in the field of sonar and radar, etc. For the purpose of source localization, two or more spatially separated sensors are often used to measure the time difference of arrivals of a radiating source whose transmitted signal waveform is unknown. The NLS(Nonlinear Least Square) cost function with curve fitting method was proposed recently, which provide robust source localization performance by reducing estimation ambiguity. However, even this algorithm shows degraded performance in a multipath environment. To estimates source localization correctly, source localization algorithm that eliminate the effect of multipath signals is required. In this paper, PMP(Power Matching Procedure) is added to the algorithm, which provides improved source localization performance by properly cutting out the effect of multipath signals. Through simulation the performance of the proposed source localization algorithm is verified.

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References

  1. Mark I. Jeffree and Anthony R. Collins, "Intercept Detection and Ranging," Proceeding of UDT Europe 2001, 8A.2, June 2001.
  2. H. Schmidt and J. P. Schwarz, "Low Frequency Intercept Pulse Ranging," Proceeding of UDT Europe 2006, 8A.3, June 2006.
  3. Brian G. Ferguson, "Improved Time-Delay Estimates of Underwater Acoustic Signals using Beamforming and Prefiltering Techniques," IEEE Journal of Oceanic Engineering, Vol. 14, No. 3, pp. 238-244, July 1989. https://doi.org/10.1109/48.29601
  4. M. Meister and D. Neumeister, "Advanced Ranging Sonar : Passive Range Measurement With Line- Arrays," Proceeding of UDT Europe 2005, 2A.2, June 2005.
  5. G. C. Carter, "Time Delay Estimation for Passive Sonar Signal Processing," IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. ASSP-29, No. 3, pp. 463-470, June 1981.
  6. B. G. Ferguson and R. J. Wyber, "Wavefront Curvature Passive Ranging in a Temporally Varying Sound Propagation Medium," in OCEANS, 2001. MTS/IEEE Conference and Exhibition, Vol. 4, pp. 2359-2365, 2001.
  7. Renbiao Wu and Jian Li, "Time-delay Estimation Via Optimizing Highly Oscillatory Cost Functions," IEEE Journal of Oceanic Engineering, Vol. 23, No. 3, pp. 235-244, July 1998. https://doi.org/10.1109/48.701196
  8. 정태진, "IDRS 시스템에서 Curve Fitting이 적용된 NLS비용함수를 이용한 방위/거리 추정 기법," 한국군사과학기술학회지 제14권 제4호, pp. 590-597, 2011년 8월.
  9. Brian P. Flanagan and Kenneth W. Parker, "Robust Distributed Detection Using Low Power Acoustic Sensors," Technical Report, The MITRE Coporation, 2005.