文档介绍：浅层地震随机介质模型及波场特征分析
浅层地震随机介质模型及波场特征分析
摘要:随着非均匀介质研究的深入发展,复杂非均匀介质成为主要研究对象。随机介质可以分解为大、小两种不同尺度的非均匀部分。大尺度的非均匀性描述了介质的平均特性,而小尺度的非均匀性描述的则是加在上述平均特性上的随机扰动。分别改变和自相关长度,扰动标准差等,分析震源主频,自相关长度和扰动标准差等因素对随机介质的散射波场特征的影响。随机介质可以分震源主频解为大、小两种不同尺度的非均匀部分。大尺度的非均匀性描述了介质的平均特性,而小尺度的非均匀性描述的则是加在上述平均特性上的随机扰动。震源主频增大,散射波的频率也随之增大,地震波震动也就能够反映更小的散射体。散射波地震勘探是解决非均匀地质体勘探问题的关键技术。
Abstract:With the non-uniform medium-depth study of the development plex heterogeneous medium as a major object of medium can be posed into large and small scales of two different parts of the non-uniform. Large-scale non-uniformity of the average properties of the medium described, the small-scale heterogeneity is added to describe the average properties of the random disturbance on to change the length of the source frequency and autocorrelation,disturbance standard deviation,analysis of frequency source,since the correlation length and standard deviation of disturbance factors on the random medium the scattered wave field characteristics . Random medium can be posed into large and small scale non-uniformity in two different parts. Large-scale non-uniformity of the average characteristics of the media described, and small-scale non-uniformity described above is added to the average properties of the random frequency increases, the scattered wave also increased the frequency of seismic wave motion w