한국음향학회지 (The Journal of the Acoustical Society of Korea)

  • 제34권1호
  • /
  • Pages.66-74
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  • 2015
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  • 1225-4428(pISSN)
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  • 2287-3775(eISSN)
한국음향학회 (The Acoustical Society of Korea)
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압력 구배-가속도 관계를 이용한 링형 다중모드 벡터 하이드로폰에서의 도래각 추정

Direction-of-Arrival Estimation for the Ring-Type Multimode Vector Hydrophone based on the Pressure Gradient-Acceleration Relationship

  • 투고 : 2014.08.07
  • 심사 : 2014.10.21
  • 발행 : 2015.01.31
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초록

수중에서 압력의 크기만을 측정할 수 있는 기존 하이드로폰의 한계를 극복하기 위해, 음압뿐만 아니라 음원의 방향을 측정할 수 있는 다양한 종류의 벡터 하이드로폰이 개발되고 있다. 본 논문에서는 다양한 종류의 벡터 하이드로폰 중 4개의 분할된 전극을 가지는 링형 다중모드 벡터 하이드로폰에서 압력 구배-가속도 관계를 이용하여 도래각을 추정할 수 있는 방법을 제안하였으며, 시뮬레이션과 수조 시험을 통해 제안된 도래각 추정 방법의 성능을 검증하였다. 제안된 방법은 다중 주파수 환경에서도 동작이 가능하며, 연산량이 작은 이점이 있으므로 관련 분야에서 다양하게 활용될 수 있을 것으로 기대된다.

Conventional hydrophones can only measure acoustic pressure. To measure both acoustic pressure and incident direction, various types of vector hydrophones have been researched. In this paper, we deal with a ring-type multimode vector hydrophone divided into 4 elements and present a direction-of-arrival (DoA) estimation method based on the pressure gradient-acceleration relationship. The performance of the presented method is analyzed by the simulation based on the sensor modeling and is verified by the water tank experiment. The proposed method could work under the multi-frequency condition and may be utilized in many applications due to its low computation complexity.

키워드

참고문헌

  1. Y. S. Lim and Y. R. Roh, "Incidence angle estimation by the tonpilz type underwater acoustic vector sensor with a quadrupole structure" (in Korean), J. Acoust. Soc. Kr. 31, 569-579 (2012). https://doi.org/10.7776/ASK.2012.31.8.569
  2. Y. S. Lim, J. Y. Lee, C. Y. Joh, H. S. Seo, and Y. R. Roh, "Design of multimode piezoelectric spherical vector sensor for a cardioid beam pattern" (in Korean), J. Acoust. Soc. Kr. 32, 32-42 (2013). https://doi.org/10.7776/ASK.2013.32.1.032
  3. Y. S. Lim, C. Y. Joh, H. S. Seo, and Y. R. Roh, "Design of multimode type ring vector sensor" (in Korean), J. Acoust. Soc. Kr. 32, 484-493 (2013). https://doi.org/10.7776/ASK.2013.32.6.484
  4. W. D. Zhang, L. G. Guan, G. J. Zhang, C. Y. Xue, K. R. Zhang, and J. P. Wang, "Research of DOA estimation based on single MEMS vector hydrophone," Sensors, 9, 6823- 6834 (2009). https://doi.org/10.3390/s90906823
  5. Na Qi, and Tan Tian, "Acoustic vector hydrophone array supergain energy flux beamforming," ICSP 2006, 4 (2006).
  6. N. Zou, C. C. Swee, and B. A. L. Chew, "Vector hydrophone array development and Its associated DOA estimation algorithms," OCEANS 2006 - Asia-Pacific, 1-5 (2006).
  7. K. T. Wong and H. Chi, "Beam patterns of an underwater acoustic vector hydrophone," SSAP 2000, 732-736 (2000).
  8. C. Wan, A. Kong, and C. Liu, "A comparative study of DOA estimation using vector/gradient sensor," OCEANS 2006- Asia-Pacific, 1-4 (2006).
  9. D. H. Chang, H. B. Park, M. S. Jurng, and I. S. Kim, "The bearing estimation of narrowband acoustic signals using DIFAR beamforming algorithm" (in Korean), J. KIMST 5, 169-184 (2003).
  10. Y. J. Son, S. Y. Chun, and K. M. Kim, "Left/Right bearing discrimination with adaptive cardioid beamforming" (in Korean), J. Acoust. Soc. Kr. 22, 489-495 (2003).
  11. R. O. Nielsen, Sonar Signal Processing (Artech House, Boston & London, 1991), pp. 259-278.
  12. H. Kuttruff , Acoustics An Introduction (Taylor & Francis, London & New York, 2007), pp. 37-51.
  13. W. S. Burdic, Underwater Acoustic System Analysis, (Peninsula Publishing, Los Altos, 2002), pp. 361-389.

피인용 문헌

  1. Analysis of a thickness-shear mode vibrator for the accelerometer in vector hydrophones vol.266, 2017, https://doi.org/10.1016/j.sna.2017.09.007