In this paper, for solving the parameter problem of two dimensional wave equation, the method of Finite Element and the Pulse Spectrum Technique, i. e. the iterative process are used.
本文针对求解二维波动方程的参数问题，利用有限元方法把波动方程反问题转化为有限元反问题，并利用脉冲谱技术，即一个迭代过程进行求解。
The test problem is the initial stage of a two-dimensional diffraction and reflection of a plane shock wave, impinging on a rectangular obstacle.
所选算例为平面激波遇矩形障碍物初始阶段的绕射与反射。
For the two-dimensional horizontal wave propagation problem, refraction and diffraction of waves must be taken into account.
对于平面二维波浪传播的问题，则需要考虑波浪的折射、绕射。
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