%0 Journal Article
%T Comparison of acoustic propagation in several different types self_organized media<br>不同模式自组织介质中声波传播特性的比较研究
%A LIU Yong_Xia
%A XU Chun_Ming
%A NING Jun_Rui
%A <br>刘永霞
%A 徐春明
%A 宁俊瑞
%J 地球物理学报
%D 2007
%I 
%X While seismic wave velocity shows large-scale deterministic geological structures, ubiquitous small-scale micro-fractures often cause statistic variations. Although seismic waves traveling through the Earth act as a low-pass filter and smooth out some small indeterministic components, those statistic in other words self-organized features exist underground. Six types of self-organized media are frequently used in seismology such as Gaussian, Exponential, self-similar, white noise, Flicker noise and Brown noise. From their filters, we compare different self-organized models with seismic recordings in conjunction with finite difference methods. The results show that various self-organized models of amplitude, energy and frequency will produce different synthetic seismograms. Thus we can make good use of this complex information to interpret field data well.
%K Self-organized structure
%K Acoustic wave
%K Complex feature
%K 6 types
%K Large-scale structure
%K Small-scale fluctuation<br>自组织结构
%K 声波
%K 复杂性特征
%K 6种模式
%K 大尺度构造
%K 小尺度扰动
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=2C85854AE0C65CCE&yid=A732AF04DDA03BB3&vid=771152D1ADC1C0EB&iid=38B194292C032A66&sid=CE16DE2ABCD4D365&eid=BC60A9A1D91963F5&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=5&reference_num=32