摘要
在无场源区域,重力场和磁场具有相同的性质,均满足拉普拉斯方程。在求解的区域内,可将边界上的低缓值作为已知的背景区域值看侍。于是分离观测的重、磁异常场,就变成如何计算拉氏方程的边值问题。而求解此边值问题,可采用边界单元法,它具有简便、精确的特点。
In the area where there is no field source,gravity field and magnetic field have similar properties.They all satisfy Laplace equation.In the area in which we need solution,the boundary low gradient values can be considered as the val- ues of regional background field,so that separating out gravity anomalous field or magnetic anomalous field becomes the problem of how we compute the boundary value of Laplace equation.The boundary value problem can be solved by using boundary element method,which is convenient and accurate.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
1992年第4期493-497,共5页
Oil Geophysical Prospecting
关键词
重力场
磁场
数据处理
航空电磁法
gravity field
magnetic field
gravity data processing
gravity separation
Laplace equation
boundary
