The Research Of Wave Propagation In The Underground Layered Structure

In geodetic survey,through the communication,and other fields,the earth electrical structure has a crucial effect on the performance of the radio waves propagation.Differences in the conductivity of geomagnetic storm induction and induction current impact on power grid,base areas,the mechanism of magnetic induction current underground hierarchical structure model is established to study the transmission characteristics of waves in the medium is very meaningful.In this paper,detailed analysis of the characteristics of the earth medium and the influence of various parameters on the radio waves propagation in the earth stratified medium model is established on the basis of radio waves is deduced by analytical method of mutations in the multilayered medium in reflection and transmission coefficient expression,A numerical calculation method named scattering matrix method(SMM)is applied to calculate the radio waves in free space and the earth.The lossy medium boundary of the reflection and transmission,to simulate the radio waves propagation in complex media conditions on earth.his article also analyzes parametric modeling to the layered medium,data through MATLAB simulation,and the propagation of electromagnetic wave in the rock.The underground conductivity structure in layered medium affect the performance of the electromagnetic wave propagation in formation.In this paper,using the SMM in view of the underground layered medium of plane electromagnetic wave incident to calculation of reflection and transmission coefficient are studied,this method compared with the numerical calculation method is more effective in time and space.Using MATLAB simulation the reflection and transmission coefficient of waves in layered medium,compared with the numerical results verify the correctness of the algorithm.Q ualitative analysis and underground layered structure on the influence of wave propagation and application.