Estimation of the Impulse Response for Diffracted Waves from a Semi-Infinite Plane by Virtual Discontinuity Principle of Diffraction
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概要
- 論文の詳細を見る
The virtual discontinuity principle of diffraction (VDPD) is a new method for the analysis of field diffracted by three-dimensional objects that satisfy the wave equation and boundary condition for obstacles of arbitrary geometry. In this study, the temporal response of diffracted fields is analyzed using VDPD. The impulse response of waves diffracted by a semi-infinite plane is calculated using VDPD and geometrical-optics expression of acoustic fields, and compared with the exact solution. The profile of the impulse response by VDPD showed a good agreement with the exact solution, but the decay time of the impulse response, determined using VDPD, has a tendency to be shorter than the decay time determined from the exact solution.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 1997-05-30
著者
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PARK Kwanshin
Department of Information Processing, Tokyo Institute of Technology
-
Ueda Mitsuhiro
Department Of Agricultural Chemistry College Of Agriculture University Of Osaka Prefecture
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Ueda Mitsuhiro
Department of International Development Engineering, Tokyo Institute of Technology, Meguroku, Tokyo 152, Japan
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Park Kwanshin
Department of Information Processing, Tokyo Institute of Technology, 4259 Nagatsuda, Midoriku, Yokohama 226, Japan
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