supported by the National Natural Science Foundation of China (Grant No. 40974073);the National 863 Program (Grant No.2007AA060504);the National 973 Program (Grant No. 2007CB209605) and CNPC Geophysical Laboratories
Presently the research based on the accurate seismic imaging methods for surface relief, complex structure, and complicated velocity distributions is of great significance. Reverse-time migration is considered to be o...