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通过对不同条件下层状介质模型瞬变电磁场数据的波场变换、分析,提高了对瞬变电磁场波场变换物理意义的认识,并总结出若干有价值的规律。指出这种通过数学方法变换出的波场,不仅在形式上满足波动方程,而且在导电介质中也存在“传播”现象,在“传播”过程中,当遇到电性分界面时,也存在“反射”和“透射”。这些结论为在瞬变电磁法中,正确合理地引入地震处理解释方法提供了重要的理论依据。
Through the wave field transformation and analysis of the transient electromagnetic field data of the layered media model under different conditions, the understanding of the physical meaning of the transient electromagnetic field wave field transformation is improved and some valuable laws are summarized. It is pointed out that the wave field transformed by mathematical method not only satisfies the wave equation formally but also has the phenomenon of “propagation” in the conductive medium. In the process of “propagation”, it also exists when it encounters the electrical interface “Reflection” and “Transmission.” These conclusions provide an important theoretical basis for the correct and reasonable introduction of seismic interpretation methods in TEM.