All Issue

2017 Vol.36, Issue 5 Preview Page
A broadband detection algorithm using cross-correlationof two split beams for cylindrical array sonar

원통형 배열 소나를 위한 두 개의 분리 빔의상호상관을 이용한 광대역탐지 기법

ChulHyun Kwak1*
곽 철현1*
1Agency for Defence Development
1국방과학연구소 소나체계개발단
*교신저자. *Corresponding Author. 
30 September 2017. pp. 300-304
PDF XML Citation
Abstract

In a cylindrical sonar, a conventional broadband energy detector has limitations in the separation of adjacent targets. In this paper, a broadband detection algorithm using cross-correlation is applied to the cylindrical sonar to improve the bearing resolution. The proposed algorithm uses split beamforming before broadband detection processing using cross-correlation to generate half beams. The time delay obtained from the peak of correlation between half beams is used to estimate the bearing of target. Simulations demonstrate the improved performance of the proposed algorithm against the conventional algorithm.

Keywords
Broadband detection
Cross-correlation
Split beamforming
Bearing resolution
Passive sonar

원통형 소나 시스템에서 기존의 광대역탐지 기법으로는 인접한 표적을 분리 탐지하는데 한계가 있다. 본 논문에서는 방위분해능을 향상을 위해 상호상관을 이용한 광대역탐지 기법을 원통형 소나 시스템에 적용한다. 제안된 기법은 상호상관을 이용한 광대역탐지 처리 이전에 분리 빔형성을 이용하여 동일 지향방위의 좌․우 반 빔을 생성한다. 생성된 좌․우 반 빔간의 상관관계 결과를 방위 값으로 변환하여 표적의 방위를 추정한다. 시뮬레이션을 통하여 제안된 기법이 기존의 광대역탐지 기법보다 성능이 우수함을 검증하였다.

키워드
광대역탐지
상호상관
분리빔형성
방위 분해능
수동소나
References
1
R. P. Hodges, Underwater Acoustics: Analysis, design and performance of Sonar (Wiley, West Sussex, 2011), pp. 1.
2
R. O. Nielsen, Sonar Signal Processing (Artech House, Norwood, 1991), pp. 150-157.
3
Y. Shefeng and M. Yuanliang, “High-resolution broadband beamforming and detection methods with real data,” Acoustical Science and Technology, 25.1, 73-76 (2004).
4
S. M. Kogon, “Robust adaptive beamforming for passive sonar using eigenvector/beam association and excision,” Proc. IEEE SAM, 33-37 (2002).
5
C. Bao, “Robust high resolution dominant mode rejection (DMR) beamformer for passive sonar,” Proc. ACOUSTICS Gold Coast, Australia: Austral. Acoust. Soc., 523-525 (2004).
6
M. Bono, B. Shapo, P. McCarty, and R. Bethel, “Subband energy detection in passive array processing,” Proc. IEEE ASAP, 25-30 (2001).
7
T. S. Kim, Y. S. Kim, Y. G. Kim, and S. T. Moon, “Receivin g signal level measurement based weighting method for broadband energy detection”(in Korean), J. Acoust. Soc. Kr. 32, 532-540 (2013).
8
R. E. Zarnich, “A fresh look at broadband passive sonar processing,” Proc. Seventh Annual ASAP ’99 Workshop, 99-103 (1999).
9
S. Stergiopoulos and  A. T. Ashley, “An experimental evaluation of split-beam processing as a broadband bearing estimator for line array sonar systems,” J. Acoust. Soc. Am. 102,  3556-3563 (1997).
10
Y. W. Ryu, E. C. Jeong, and S. Y. Chun, “Analysis on noise correlation of triplet line array sensors in the east sea” (in Korean), J. Acoust. Soc. Kr. 34, 479-486 (2015).
Information
  • Publisher :The Acoustical Society of Korea
  • Publisher(Ko) :한국음향학회
  • Journal Title :The Journal of the Acoustical Society of Korea
  • Journal Title(Ko) :한국음향학회지
  • Volume : 36
  • No :5
  • Pages :300-304
  • Received Date : 2017-08-30
  • Accepted Date : 2017-09-28
  • DOI :https://doi.org/10.7776/ASK.2017.36.5.300
Journal Informaiton The Journal of the Acoustical Society of Korea The Journal of the Acoustical Society of Korea
E-Book
  • scopus_JASK
  • ESCI_JASK
  • Google scholar_JASK
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • ccl
Journal Informaiton Journal Informaiton - close