地震数据处理中， 建立速度模型。 根据需求改变参数即可。-Seismic data processing speed of the model established in accordance with changes in demand parameters.

频率波数域的声波方程叠后波场正演，里面可以修改速度模型-The frequency wave number field of the acoustic wave equation after the wave field forward, which can modify the speed model