讨论了直接利用数值积分提高电偶源电磁测深响应计算精度的方法。
The direct integration method to enhance the calculation accuracy of electromagnetic responses for current dipole source over layered earth is discussed.
本文给出了一个主要用于深地震测深数据的震相识别误差(不确定性)的判别和计算方法。
We give a method for use as the data of deep seismic sounding which identifies and calculates the uncertainty automatically in phase picking.
采用有限元直接迭代算法实现了线源频率域测深电磁响应的二维正演计算。
The Direct Iterative Finite Element algorithm (DIFE) is used to calculate the electromagnetic responses at earth surface excited by a line current source.
通过对计算结果的分析,在理论上说明了线源频率域近区测深的可行性。
It shows in theory that the frequency domain sounding in near zone of the line current source is possible.
为在电阻率测深曲线反演中得到全局最优解,采用先使用遗传算法再用最小二乘法反演方法,对较为复杂的3层和3层以上大地模型进行了计算,其模型参数误差只有6%。
It is shown from the computations that the joint method inherits both the advantages of GA and least square. The model errors of inverting 3 or more strata layered earth are 6% less.
本文还附有电阻率测深曲线正反演的PC-1500袖珍计算机计算程序。
There is a program in this paper for pocket computer of model PC-1500, which is used for resolving direct or inverse problem.
文中讨论了提高长偏移距瞬变电磁测深甚晚期响应计算精度及相应的全区视电阻率的计算方法。
In this paper, the numerical methods for improving the simulation accuracy of very late time response in Long Offset TEM (LOTEM) sounding and its all time apparent resistivity have been introduced.
频率测深一维问题正演常用的计算方法是数值积分方法,但是这种方法由于利用求和代替积分使得计算速度很慢,精度也较低。
The general method of calculation of E. M. sounding is that of numerical integral. But because of using summation instead of integral, it makes the calculation too slow and precision too low.
本文介绍用z - 2d微型计算机解释电测深曲线的算法及应用。
An algorithm for interpreting electric sounding curve by Z-2D minicomputer and its application are presented in this paper.
先从理论上作了分析,然后利用ANSYS软件进行了直流电阻率剖面和电阻率测深法的模拟计算。
Then simulating calculation of profiles and soundings of the DC electro-exploring method are numerically carried out, supported by ANSYS that is a software based on the finite element analysis method.
文中给出电性源瞬变电磁测深一维“烟圈”反演解释方法的基本原理、计算方法和应用实例。
This article introduces the ultimate principle and calculation method technique of 1-d smoke ring inversion technique for grounded source transient electromagnetic method and the applied examples.
本文用有限单元法对坑道内的直流电阻率测深进行数值模拟计算。
In this paper, we performed modelling of DC resistivity sounding in tunnel using the finite element method (FEM).
引入一个多层岩层相叠时其表面对电磁波入射的总反射系数的概念,从而导出了方法的正反演计算式及相应仪器的设计方案,并制造了测深仪器。
By defining a total reflection coefficient of natual EM field over multi layered medium, the forward and inversion equations for nature soutce EM sounding are established.
从计算结果分析可知,瞬变电磁测深可实现较小极距探测较大深度。
From the analysis of calculating results it can be seen that the greater depth explored with the smaller offset in the TEM sounding could be achieved.
本文阐述在大地电磁测深工作中,用有限单元法,模拟计算京津唐地区二维地质构造的大地电磁响应。
The magnetotelluric response to the two dimension structures has been numerically modeled by use of the finite element method.
本文阐述在大地电磁测深工作中,用有限单元法,模拟计算京津唐地区二维地质构造的大地电磁响应。
The magnetotelluric response to the two dimension structures has been numerically modeled by use of the finite element method.
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