Although the ordinary stack velocity analysis method has already matured,the ordinary NMO equation is based on the supposal that the shot and receiver points are located a same horizontal datum plane.

• 常规叠加速度分析方法虽然业已成熟,然而常规动校正方程是基于炮、检点处于同一水平基准面的假设,在地表起伏较大的地区,即使采用浮动基准面的方法,其速度分析误差也不容忽视。