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- W2081655964 abstract "In this article, a numerical method of modeling the output signal of a transducer after reflection of the pulsed radiated wave on a reflector of arbitrary geometry is presented. This method, based on impulse ray modeling, corresponds to a discrete approach of the Kirchhoff-radiation integral: It leads to a numerical evaluation of the diffraction effects. The overall response can be written as a time convolution of the transducer impulse response with the radiation coupling function related to the reflector geometry. This linear system approach permits an easy explanation of the signal distortion due to the reflector geometry. After a presentation of the basic principles of the method and their justification, the model is applied to several geometrical configurations: tilted plane, cylindrical, and spherical reflectors of infinite acoustical impedance. The method is extended to model a focused transducer and a solid layer reflector of finite acoustical impedance." @default.
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- W2081655964 date "1988-10-01" @default.
- W2081655964 modified "2023-09-26" @default.
- W2081655964 title "Computation of the impulse diffraction of any obstacle by impulse ray modeling—Prediction of the signal distortions" @default.
- W2081655964 doi "https://doi.org/10.1121/1.396597" @default.
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