Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2007.11a
  • /
  • Pages.812-819
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  • 2007
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Derivation of Acoustic Target Strength Equation Considering Pulse Type of Acoustic Signal

펄스 타입의 음향신호를 고려한 음향표적강도 이론식 개발

  • Kim, Ki-June (Dept. of Naval Architecture and Ocean Engineering College of Engineering, Seoul National Univ) ;
  • Hong, Suk-Yoon (Dept. of Naval Architecture and Ocean Engineering, College of Engineering, Seoul National Univ.) ;
  • Kwon, Hyun-Wung (Dept. of Naval Architecture and Ocean Engineering College of Engineering, Seoul National Univ)
  • Published : 2007.11.15
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Abstract

Acoustic Target Strength (TS) is a major parameter of the active sonar equation, which indicates the ratio of the radiated intensity from the source to the re-radiated intensity by a target. This research provides the time pattern of TS in time domain, which is applicable to pulse modulated acoustic pressure field. If the time pattern of TS is predicted by using TS equation in frequency domain, it takes long time and difficult since time function pulsed acoustic wave may be decomposed into their frequency domain components. But TS equation in time domain has a convenience. If the expression for pulsed acoustic field has been obtained, the problem can be solved. Furthermore this paper introduces about mathematical equivalence quantities between EM wave and Acoustic Wave.

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