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Detection Method of Weak Low-Frequency Electromagnetic Signal Based on Multi-layer Autocorrelation

첫 페이지 보기
  • 발행기관
    보안공학연구지원센터(IJSIP) 바로가기
  • 간행물
    International Journal of Signal Processing, Image Processing and Pattern Recognition 바로가기
  • 통권
    Vol.9 No.4 (2016.04)바로가기
  • 페이지
    pp.27-36
  • 저자
    Zheng Dou, Yu Tao, Yun Lin, Zhiqiang Wu, Dong Li, Zhiping Zhang
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A273211

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원문정보

초록

영어
Low frequency electromagnetic signals play an important role in the detection of underground electrical structure. After propagation of long distance, signal will be attenuated to a certain extent and probably buried in noise, make it difficult to extract. In this paper, the method of multi-layer autocorrelation will be used to detect and extract the weak low frequency electromagnetic signal, and its performance will be compared with the narrow-band filter and the method of synchronous accumulation. Simulation results show that the correlation coefficient of signal obtained by multi-layer autocorrelation and source signal can achieve more than 0.8 when SNR is -18dB. However, the value of narrow-band filter and synchronous accumulation is lower than that mentioned above when SNR is only -14dB. Experimental verifies that multi-layer autocorrelation method can suppress noise more effectively and detect weak signals more accurately.

목차

Abstract
 1. Introduction
 2. The Basic Principle of Weak Signal Extraction
  2.1 Multi-Layer Correlation
  2.2 Narrowband Filter and Synchronous Accumulation
 3. Simulations and Performance Analysis
  3.1 The Comparison of Time-Domain Waveform
  3.2 The Comparison of Frequency Spectrum
  3.3 The Comparison of Correlation Coefficient
 4. Conclusions
 Acknowledgements
 References

키워드

Weak signal detetion Multi-layer autocorrelation Narrow-band filter Synchronous accumulation

저자

  • Zheng Dou [ College of Information and Communication Engineering Harbin Engineering University, Harbin, China ]
  • Yu Tao [ College of Information and Communication Engineering Harbin Engineering University, Harbin, China ]
  • Yun Lin [ College of Information and Communication Engineering Harbin Engineering University, Harbin, China, Department of Electrical Engineering Wright State University, Dayton, Ohio, U.S. ] Corresponding Author
  • Zhiqiang Wu [ Department of Electrical Engineering Wright State University, Dayton, Ohio, U.S. ]
  • Dong Li [ Department of Electrical Engineering Wright State University, Dayton, Ohio, U.S. ]
  • Zhiping Zhang [ Department of Electrical Engineering Wright State University, Dayton, Ohio, U.S. ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    보안공학연구지원센터(IJSIP) [Science & Engineering Research Support Center, Republic of Korea(IJSIP)]
  • 설립연도
    2006
  • 분야
    공학>컴퓨터학
  • 소개
    1. 보안공학에 대한 각종 조사 및 연구 2. 보안공학에 대한 응용기술 연구 및 발표 3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최 4. 보안공학 기술의 상호 협조 및 정보교환 5. 보안공학에 관한 표준화 사업 및 규격의 제정 6. 보안공학에 관한 산학연 협동의 증진 7. 국제적 학술 교류 및 기술 협력 8. 보안공학에 관한 논문지 발간 9. 기타 본 회 목적 달성에 필요한 사업

간행물

  • 간행물명
    International Journal of Signal Processing, Image Processing and Pattern Recognition
  • 간기
    격월간
  • pISSN
    2005-4254
  • 수록기간
    2008~2016
  • 십진분류
    KDC 505 DDC 605

이 권호 내 다른 논문 / International Journal of Signal Processing, Image Processing and Pattern Recognition Vol.9 No.4

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