FDTD Modeling for tree-trunk scattering on the soil

This paper presents our global approach to model Ultra Wideband (UWB) FOPEN (Foliage Penetration). In this approach, we consider plane wave scattering (in time domain) from the tree trunks above the soil. The time-domain scattering is computed via FDTD method, which is particularly well adapted to frequency-dependent soil. This method is processed prior to a Fast Fourier Transform (FFT), which is performed to come back to the frequency domain. Thus, we may have rich information for applicability to the FOPEN detection need.