An example of North China Oil Field proves it feasible that people use iterative curved ray method to produce angular tracegather.
文中列举了华北油田的一个实例，说明迭代曲射线法求角道集是可行的。
2
Then the tracegather undergoes velocity analysis, normal moveout correction and stack to bring seismic migrated section ( This is called scattering point imaging).
然后对该道集进行速度分析、动校正和叠加，得到偏移地震剖面，即共散射点成像。
3
This means that if the exact point of failure is known, the trace can be enabled just prior to the incident to gather only relevant information.