摘要
理论研究表明,频率测深任意角度方向上的电磁场与轴向和赤道向电磁场之间存在着一定的数学关系,利用这种关系,只要计算出轴向和赤道向的电磁场,即可合成任意角度方向的电磁场,从而计算出视电阻率响应。快速汉克尔变换法应用于任意角度频率测深正演计算。理论计算再次证明该方法是计算含贝赛尔函数积分即汉克尔积分的快速有效方法。本文系统地讨论了电偶源频率测深任意角度方向上水平电场、水平和垂直磁场的正演计算,并将其用于实际资料的反演解释之中。
It has been found that the E. M. fields in free-array-directions have certain relations to the fields of equatorial-array and of axial-array. The ralations can be used to calculate the field. Fast Hankel transform has been used in the calculation again, and found to be effective in calculating the Hankel integral. The direct calculation of horizontal electrical field. horizontal and vertical magnetic fields in freearray-directions of F.E.M. sounding transmitted by electrical dipole has been discussed, and the result has been used, for the inversion of field data.
出处
《物探化探计算技术》
CAS
CSCD
1991年第2期129-138,共10页
Computing Techniques For Geophysical and Geochemical Exploration
