摘要
通过一维波动差分方程分析了合成记录中产生频散及分辨率低的原因,定义了差分算子Dzz与Dtt,确定了无频散条件Dtt/Dzz=C^2,并提出了提高合成记录分辨率的方法.
With the 1-d wave motion equation , this paper analyzed the causes of frequency-dispersion and low resolution in synthetic seismogram, defined the difference operators, Dzz and Dtt, decided the nondispersion condition: Dtt/Dzz=c2, and suggested a method to increase the resolution in synthetic seismogram.
关键词
频散
分辨率
差分算子
波动方程
frequency-dispersion , resolution , difference operators
