The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Detection Performance Improvement of STDR/SSTDR Schemes Using Sign Eliminator

부호 제거기를 활용한 STDR/SSTDR 기법의 탐지 성능 개선

  • Park, So Ryoung (The Catholic University of Korea, School of Information, Communications, and Electronics Engineering, Communication Signal Processing Lab.)
  • Received : 2016.05.04
  • Accepted : 2016.05.16
  • Published : 2016.06.30
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Abstract

This paper proposes an advanced detection technique for cable fault by eliminating the sign of reference signal in STDR(sequence time-domain reflectometry) and SSTDR(spread-spectrum time-domain reflectometry). The proposed fault-detection technique can eliminate the reference signal more effectively than the conventional one since the sign detector can approximately recover the distorted reference signal by cable and connector, and consequently, can detect the reflected signal by fault more effectively than the conventional one. Especially, it is shown that the error rate of proposed technique can be significantly lower than the conventional one in the case of far fault simulation.

이 논문에서는 STDR(sequence time-domain reflectometry)이나 SSTDR(spread-spectrum time-domain reflectometry) 방식에서 인가 신호 제거 기법을 사용하여 케이블의 고장 위치를 탐지할 때, 제거기 앞단에 부호기(sign detector)를 추가하여 복원된 부호를 제거하는 기법을 제안한다. 제안하는 방법은 케이블 선로나 측정 회로에 의해 변형된 신호를 수열의 형태로 복원시킨 후 제거하기 때문에 부호기를 쓰지 않은 경우보다 인가 신호 부분을 효과적으로 제거할 수 있고, 결과적으로 고장에 의한 반사 신호 부분의 탐지 성능을 향상시킬 수 있다. 특히, 원거리 고장에서 제안한 고장 탐지 기법이 기존의 기법에 비해 오탐지율을 크게 낮출 수 있음을 모의실험으로 보였다.

Keywords

References

  1. N. H. Rahim, I. S. Chairul, S. A. Ghani, M. S. A. Khiar, N. Abas, and Y. H. M. Thayoob, "Simulation of TDR circuit for the analysis of wave propagation in XLPE cable model," in Proc. IEEE Int. Conf. Power and Energy, pp. 796-801, Kota Kinabalu Sabah, Malaysia, Dec. 2012.
  2. S. H. Doo, K. S. Kwak, and J. B. Park, "Estimation of fault location on a power line using the time-frequency domain reflectometry," J. IEIE, vol. 57, no. 2, pp. 268-275, Feb. 2008.
  3. P. Smith, C. Furse, and J. Gunther, "Analysis of spread spectrum time domain reflectometry for wire fault location," IEEE Sensors J., vol. 5, no. 6, pp. 1469-1478, Dec. 2005. https://doi.org/10.1109/JSEN.2005.858964
  4. R. A. Guinee, "A novel transmission line test and fault location methodology using pseudorandom binary sequences," in Proc. IET Irish Conf. Sign. Syst., pp. 350-355, Galway, Ireland, Jun. 2008.
  5. J. J. Han and S. R. Park, "Performance comparison and improvement of STDR/SSTDR applying various sequences," J. KICS, vol. 39, no. 11, pp. 637-644, Nov. 2014.
  6. J. J. Han, S. Noh, and S. R. Park, "Performance improvement of STDR scheme employing sign correlator," J. KICS, vol. 40, no. 6, pp. 990-996, Jun. 2015. https://doi.org/10.7840/kics.2015.40.6.990
  7. J. J. Han, S. R. Park, and S. Noh, "Improvement of detection performance in STDR/SSTDR using sign detector," Electron. Lett., vol. 51, no. 16, pp. 1281-1282, Aug. 2015. https://doi.org/10.1049/el.2015.1657
  8. M. Zimmermann and K. Dostert, "A multipath model for the powerline channel," IEEE Trans. Commun., vol. 50, no. 4, pp. 553-559, Apr. 2002. https://doi.org/10.1109/26.996069
  9. J. H. Yoo, S. H. Choe, and N. Pine, "MIMO-OFDM BPLC over statistical power line channels with cross-talk," J. KICS, vol. 36, no. 12, pp. 1565-1573, Dec. 2011. https://doi.org/10.7840/KICS.2011.36B.12.1565
  10. C. K. Lee, T. S. Yoon, and J. B. Park, "Localization of concentric neutrals corrosion on live underground power cable based on time-frequency domain reflectometry," J. IEIE, vol. 62, no. 2, pp. 239-245, Feb. 2013.