摘要
电磁测深方法是地球物理勘探的重要方法.按照处理方式分为时间域和频率域电磁测深方法两类.但实质上时间域方法和频率域方法是等效的.而由于观测方式的不同,有时效果不能完全等同.本文介绍一种广义的时间域电磁测深方法.这种方法的最大优点就是在不改变激励和观测装置的前提下,通过改变激励波形,从而实现分段多尺度的电磁测深处理.
Electromagnetic sounding is a very important method of geophysical exploration. It is divided into two types, time domain electromagnetic sounding and frequency domain electromagnetic sounding. They are equivalent in essential. But the actual effects are not the same because of the different survey conditions. We introduce a new method of universal time domain sounding. We can realize the multi-scale electromagnetic sounding by surveying different responses in the frequency domain of the different excitations.
出处
《地球物理学进展》
CSCD
北大核心
2010年第5期1670-1675,共6页
Progress in Geophysics
基金
矿产资源与灾害探查湖南省高校科技创新团队
博士点基金(20070533075)
湖南重大专项基金(2008FJ1006)项目资助
关键词
电磁测深
多尺度
阶跃波
单位脉冲
Electromagnetic Sounding, Multi-Scale, Step Wave, Unit Pulse
