相匹配滤波与频率域维纳滤波结合在地震信号处理中的应用

作     者：洪学海 Hong Xuehai (National Research Center for Intelligent Computing Systems, Institute of ComputingTechnology, Chinese Academy of Sciences, Beijing 100080) (Department of computer science & technology, Peking University, Beijing 100871)

作者机构：中科院计算技术研究所国家智能计算机研究开发中心 

出 版 物：《数值计算与计算机应用》 (Journal on Numerical Methods and Computer Applications)

年 卷 期：2004年第25卷第1期

页      面：3-12页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：中国博士后科学基金项目资助 

主　　题：相匹配滤波 频率域维纳滤波 衰减系数 地震信号 信号处理 Gauss函数 

摘      要：The surface wave signals produced in natural seismic are “intact“ and complex, it is the key which eliminating the noise from that signals if we wanted to invert the structure of the earth using the true signal which the earth *** inter-station fundamental-mode surface wave attenuation coefficient was calculated combined the phase-match filter with frequency-domain Wiener filter. The first, we separated the fundamental-mode surface wave from different two original signal which recorded on two stations which are on one big-circle path using phase-matched filter, and then calculating the attenuation coefficient using frequency domain Wiener filter. It is avoided the negative attenuation coefficient that can t be explained. All of this are the base of inverting the inter structure of the earth.