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本文指出用物理光学的研究方法来研究地震波时所存在的问题。讨论了目前偏移的理论和方法。指出仅仅根据孤立的二次点震源的讨论,认为波动逆过程的惠更斯原理是正确的,并把其作为偏移的唯一基本原理是错误的。在此基础上用“广义绕射变换”来归纳和解释各种偏移方法也是不妥的。承认界面上的二次点源,与否定在实际记录中可以分解出二次点震源的绕射波是不矛盾的。
This paper points out the problems existing in the study of seismic waves with the method of physical optics. Discuss the theory and method of current offset. It is pointed out that the Huygens principle of the wave inverse process is considered correct only on the basis of the discussion of isolated secondary point sources and the only basic principle of the offset is wrong. On this basis, it is also inappropriate to generalize and explain various offset methods using “generalized diffraction transformation”. Acknowledging that the secondary point source on the interface is not contradictory to the fact that the diffraction of a secondary point source can be decomposed in the actual record.