Green's Function or FDTD?
时间：03-25
整理：3721RD
点击：
A one-dimensional problem:
Supposing a wideband EM signal is emitted toward lossy multi-layer soil (earth), I want to evaluate the reflection signal. I don't care about the antenna; what I can know about the incident signal is the recorded electric field E only.
I plan to write a Matlab code. I know it can be solved by FDTD, but I don't know if Green's function method is preferable for this problem. I never use Green's function before, I just read several papers about it. In the papers, some simulation experiments were performed, and the current density in the antenna was assumed to be known.
As to my practical problem, the current density is unknown. Also, it seems to be a source-free problem. My questions are:
(1) Is the Green's function helpful to my problem? Any proper papers related to this question?
(2) If Green's function works, which method is time-saving, Green's function, or FDTD, or other else?
Thanks in advance!!
Supposing a wideband EM signal is emitted toward lossy multi-layer soil (earth), I want to evaluate the reflection signal. I don't care about the antenna; what I can know about the incident signal is the recorded electric field E only.
I plan to write a Matlab code. I know it can be solved by FDTD, but I don't know if Green's function method is preferable for this problem. I never use Green's function before, I just read several papers about it. In the papers, some simulation experiments were performed, and the current density in the antenna was assumed to be known.
As to my practical problem, the current density is unknown. Also, it seems to be a source-free problem. My questions are:
(1) Is the Green's function helpful to my problem? Any proper papers related to this question?
(2) If Green's function works, which method is time-saving, Green's function, or FDTD, or other else?
Thanks in advance!!
Your problem is a basic EM scattering problem, which should be solved using Green Function. There are many papers about Green Funciton in multi-layer dielectrics.