Firstly, the T0 layer data of post-stack time migration domain (abbreviated in migration domain) was de-migrated into common-depth-point-stacking time domain (abbreviated in stacking domain).

• 首先将叠后时间偏移域（简称偏移域）的T0层位数据反偏移（偏移的逆运算）到水平叠加时间域（叠加域）；