地震动转动分量研究

摘要

This paper carries out on some improvements to the certain frequency-domain method,given the effects of frequency dispersion of the equivalent of seismic wave group velocity and the effects of frequency dispersion of body waves incident angle,estimated a more accurate velocity curve suited to China＇s Sichuan region.And used the velocity curves obtained Wenchuan earthquake wave rotational components in order to study how to more accurately estimate the seismic rotational component and a number of characteristics of rotational components.%通过对频域法进行一定的改进,考虑地震波等效群速度的频散效应以及体波入射角的频散效应,估算出适合中国四川地区视波速曲线。并用得到的视波速曲线研究汶川地震波转动分量,以期研究如何更加准确地估算地震波转动分量及转动分量的一些特性。