横波各向异性的分析处理［2］

地壳的各向异性分析计算中，非常重要的两个参数是：分裂的横波中高速和低速横波之间的时间延迟和高速横波的极化方向。在试算中的合成地震记录显示两种方法（ＡＳＲ和ＡＩＲ）都大大快于目前使用的数字方法（分别是１０倍和１００倍），而且结果与模型值一致。野外资料的分析计算显示ＡＳＲ相对于ＡＩＲ的抗干扰性要强且结果稳定。

ANALYTICAL PROCESSING FOR SHEAR-WAVE ANISOTROPY[2]

The polarization direction of the leading shear-wave and the time delay between faster and slower split shear-waves are important parameters for estimating the anisotropy of the crust. Synthetic seismograms used as test data show that both methods (ASR and AIR) are much faster than the corresponding numerical methods (about 10 and 100 times faster respectively) and give results in application to the model values. Theoretical analyses and application to the field data show that ASR is not as sensitive to noise as AIR and gives more consistent results.