| 摘要 |
PURPOSE: A method of predicting acoustic fields based on generalized moving frame acoustic holography and a system thereof are provided to accurately predict acoustic field on a prediction side even in case sound source surface and hologram surface are relatively moved on various coordinate systems. CONSTITUTION: A method of predicting acoustic fields comprises the following steps. According to moving coordinate systems, a first wave spectrum on a measurement plane is obtained(S420). The first wave spectrum is converted into the second wave spectrum on the reference coordinate system using relative velocity between the medium and the measurement plane(S430). The second wave spectrum is converted into the third wave spectrum using an acoustic wave propagation theory(S440). The third wave spectrum is converted into the fourth wave spectrum according to the moving coordinate system(S450).
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