源近区频域电磁测深视电阻率的一种数值计算方法①
来源期刊:中国有色金属学报1996年第1期
论文作者:苏发 汤井田 何继善 温佩琳
文章页码:6 - 10
关键词:视电阻率; 频域电磁测深; 双频组合波; 数值计算; 分段Simpson积分法
Key words:apparent resistivity; frequency-domain ; electromagnetic sounding ; dual-frequency combination wave; numerical calculation; piecewise Simpson integration.
摘 要:在对近区场积分表达式中各积分因子特性分析的基础上,提出了一种解决近区场含两个Bessel函数奇异积分的分段Simpson积分法,较好地处理了近区视电阻率的数值计算问题。
Abstract: On the basis of analysing the characteristics of each integral factor in near source field expressions,a new piecewise Simpson integration for improper integral composed of double Bessel functions was advanced,and the problem of numerical calculation for apparent resistivity in near field zone was fairly solved.