中文摘要：

在波前构建法射线追踪的实现过程中,速度模型的光滑处理对地震波走时和射线路径都有非常重要的影响,选择不同的光滑算子或同一光滑算子的不同光滑次数都会给地震波走时和射线路径造成差异,从而影响到偏移成像的质量。本文针对同一速度模型,采用不同的光滑算子以及不同光滑次数的同一光滑算子和不同光滑因子,分析对比其对地震波旅行时和射线路径的差异,以便在实际应用中选择适用的光滑算子和光滑次数,以获得较精确的射线路径和走时。

英文摘要：

In a process of implementing ray tracing by wave-front construction method, the smooth processing of velocity model has important influence on travel-times and ray paths of seismic waves. Selecting different smooth operators or different smooth times of same smooth operator resulted in difference for travel-times and ray paths of seismic waves, affecting the quality of migration imaging. For same velocity model, the paper adopted different smooth operators and same smooth operator with different smooth time...