椭圆形缺陷散射时域Born近似

Time Domain Born Approximation for Simple Elliptical Flaw

在二维弹性波散射领域Born近似解的基础上，通过Fourier变换，推导了基脉冲入射二维散射系统时，散射场的时域Born近似解。引进基脉冲响应函数概念，并探讨了椭圆形缺陷后场散射基脉冲响应函数。

On the basis of the frequency domain Born approximation theory of the scattering of two dimensional waves,the time domain Born approximation solution to the scattering of basic impulse function if derived by Fourier transform. The basic impulse response function is introduced,and that of elliptical flaws is studied.