摘要
磁偶源频率测深法是一种有效的地球物理勘探方法。多年来,人们对这种方法的正演理论和反演解释进行了研究。文中利用快速汉克尔数值滤波算法计算了层状介质上直立磁偶极子的电磁场响应以及频率测深视电阻率的振幅响应,这种计算方法与常用的数值积分算法相比,具有计算速度快、精度高等特点。同时详细地讨论了磁偶源频率测深的特点及视电阻率理论曲线的特征。
Frequency domain behavior of the electromagnetic field of a vertical magnetic dipole source on the surface of the earth is described in this paper, which concerned with electromagnetic soundings Apparent resistivity curves are calculated by means of a digita llinear filter, Fast Hankel Transform.The procedure makes the speed of calculation fast and precision, high. The content also described the feature of the apparent resistivity curves.
关键词
测深
频率
视电阻率
电磁场
磁偶源
electromagnetic field, frequency sounding, large induction number, apparent resistivity
