In this paper we discuss the difference and relationship between CRP and CRS stacking, NMO/DMO stacking, as well as pre stack depth migration(PreSDM) and CRS stacking in a geometrical viewpoint and on the hypothesis of constant velocity media.

• 以几何描述的方式 ,在常速介质假设下通过图示定性描述CRP与CRS叠加之间 ,NMO/DMO叠加、叠前深度偏移 (PreSDM )与CRS叠加之间的区别与联系。