領域積分方程式を用いた媒質の揺らぎと散乱波のfar field patternについての検討

抄録

Effects of fluctuations of an acoustic wave field on far field patterns were analyzed in this paper. The multiscale decomposition of the volume integral equation was employed for the analyses. The additive decomposition of the far field patterns was carried out according to the scale decomposition for the fluctuation of the medium as well as solution of the integral equation. Numerical results were presented to clarify the relationship between the size of the localized low velocity area and the wavelength.