Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)
- 1984.12a
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- Pages.96-99
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- 1984
수동 소나 배열을 이용한 수중 음향 영상에 관한 연구
Abstract
In this study, the underwater acoustic images were obtained by ultrasonicwave. The experiment was performed in the anechoic watertank, using a passive sonar array for one and two sound source respectively by X-Y scanning technique. The receiving array was consist of 8 disc type transducers with 1.5cm diameter at 25KHz resonance frequency. The scanned data were processed by the FORTRAN IV algorithm for the reconstruction of image, and the image had some noise due to the surface reflected waves. As the result, it was found that the acoustic imaging by electrical deflection and dynamic focusing technique is applicable to SONAR with the suppression of surface reflected wave.
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