다중상태 소나시스템을 적용한 표적반향음 연구- Part Ⅱ : 수치모델링과 실험적 검증
Investigation of Target Echoes in Multi-static SONAR system - Part Ⅱ : Numerical Modeling with Experimental Verification
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초록
A multi-static SONAR system consists of the transmitters and receivers separately in space. The active target echoes are receivedalong the transmitter-target-receiver path and depend on the shape and aspect angle of the submerged objects at each receiver. Thus, the target echoalgorithm used with a mono-static system, in which the transmitter and receiver are located at the same position, has limits in simulating thetarget echoes for a multi-static SONAR system. In this paper, a target echo modeling procedure for a 3D submerged object in space is describedbased on the Kirchhoff approximation, and the SONAR system is extended to a multi-static SONAR system. The scattered field from externalstructures is calculated on the visible surfaces, which is determined based on the locations of the transmitter and receiver. A series of experimentsin an acoustic water tank was conducted to measure the target echoes from scaled targets with a single transmitter and 16 receivers. Finally, thenumerical results were compared with experimental results and shown to be useful for simulating the target echoes/target strength in a multi-staticSONAR system.
Abstract
A multi-static SONAR system consists of the transmitters and receivers separately in space. The active target echoes are receivedalong the transmitter-target-receiver path and depend on the shape and aspect angle of the submerged objects at each receiver. Thus, the target echoalgorithm used with a mono-static system, in which the transmitter and receiver are located at the same position, has limits in simulating thetarget echoes for a multi-static SONAR system. In this paper, a target echo modeling procedure for a 3D submerged object in space is describedbased on the Kirchhoff approximation, and the SONAR system is extended to a multi-static SONAR system. The scattered field from externalstructures is calculated on the visible surfaces, which is determined based on the locations of the transmitter and receiver. A series of experimentsin an acoustic water tank was conducted to measure the target echoes from scaled targets with a single transmitter and 16 receivers. Finally, thenumerical results were compared with experimental results and shown to be useful for simulating the target echoes/target strength in a multi-staticSONAR system.
참고문헌 (24)
- 배호석, "다중상태 소나시스템을 적용한 표적반향음 연구- PartⅠ : 측정시스템 설계", 한국해양공학회지, 28(5), pp.429~439 (2014), 한국해양공학회
- Bae, H. S, "Energy Distribution Characteristics of the Target Signals using the Underwater Distributed Sensor Networks", Proceedings of The Korea Institute of Military Science and Technology, pp.779~780 (2013)
- 최영호, "수중물체에 대한 음향 표적강도의 수치해석과 실험적 검증", 한국해양공학회지, 19(1), pp.64~70 (2005), 한국해양공학회
- Clay, C.S, "Acoustical Oceanography: Principles and applications" (1977), John Wiley & Sons, Inc
- Cook, J.C, "Target Strength and Echo Structure", Adaptive Methods in Underwater Acoustics, 151, pp.155~172 (1985)
- Hazen, M. G, "Modeling Second order Target Strength Effects at Physical Optics Integral Frequencies", Proceedings of Undersea Defence Technology Conference Europe, pp.PⅢ-25~ (2002)
- 장재훈, "표적탐지성능을 이용한 다중상태 소나의 효과도 분석", 한국군사과학기술학회지, 9(1), pp.24~32 (2006), 한국군사과학기술학회
- Ji, Y. H, "Multi-static Scattering Characteristics of Submerged Objects with Experimental Investigation", Journal of the Acoustical Society of America, 134, pp.4113~ (2013)
- Kim, B. I, "Echo Signal synthesis of Underwater Target by Distributed Highlight Model", Journal of the Acoustical Society of Korea, 19(7), pp.15~22 (2001)
- Kim, H. S, "Realtime Active Target Signal Simulation", Journal of the Acoustical Society of Korea, 11(3), pp.163~169 (1997)
- 김국현, "수중표적의 시간영역 음파 후방산란 신호 모의", 한국음향학회지, 27(3), pp.140~148 (2008), 한국음향학회
- Derivation of Acoustic Target Strength Equation Considering Pulse Type of Acoustic signal, "Kim, K. J", Proceedings of the Korean Society for Noise and Vibration Engineering, ~, pp.KSNVE07A-29-03 (2007)
- 김선효, "수중합성환경에서 단상태 능동소나의 성능분석을 위한 표적신호 모의", 한국음향학회지, 32(6), pp.455~471 (2013), 한국음향학회
- Kwon, H. W, "Developement of Acoustic Target Strength Analysis Software Considering Anechoic Coating Effect", Proceedings of the Acoustical Society of Korea, 30(1), pp.770~775 (2011)
- Lee, T.K, "Acoustic Target Strength Predictions for the Submerged Structures with Stiffener Effects and Multiple-Bounce Contributions", 석사, pp.2005
- Lew, H, "Broadband Echoes from Underwater Targets", International Journal of Computational Engineering Science(IJCES), 5(2), pp.281~290 (2004)
- Maxit, L, "Target Strength Modeling of Submarines", Proceedings of Undersea Defence Technology Conference Europe, pp.7B~3 (2004)
- Nguyen, B, "Broadband BISTATIC Acoustic Scattering of Submerged Objects", Proceedings of Undersea Defence Technology Conference Asia, pp.PI-6~ (2002)
- Nolte, B, "Numerical Methods for Wave Scattering Phenomena by Means of Different Boundary Integral Formulations", Journal of Computational Acoustics, 15(4), pp.495~529 (2007)
- Schneider, H.G, "Benchmark Target Strength Simulation Workshop", Proceedings of Undersea Defence Technology Conference Europe, pp.9B-1~ (2003)
- Seong, N.J, "MOving Spread Target Signal Simulation", Journal of the Acoustical Society of Korea, 13(2), pp.30~37 (1994)
- Shin, K. C, "Target Scattering Echo Simulation for Active Sonar System in the Geometric Optics Region", Journal of the Acoustical Society of Korea, 20(3), pp.95~101 (2001)
- Urick, R.J, "Principles of Underwater Sound" (1983), McGraw-Hill
- 유승기, "3차원 수중 표적의 반향특성 모델링과 실험적 검증", 한국음향학회지, 33(3), pp.174~183 (2014), 한국음향학회[DOI]