Simulasi Perambatan Gelombang Georadar (GPR) pada Suatu Media Berlapis

Abstract

The simulation of the wave propagation of the radar in the sub-surface
was very important to be understood before being carried out of field acquisition,
to maximize the design of the acquisition and to optimized radar gram data’s.
One of the approaches in the simulation of the data was to use propagation
modeling of the electromagnetic wave by using the Finite Difference Time
Domain solution (FDTD). Modeling of electromagnetic wave propagation in the
GPR requires a solution of Maxwell’s equations or present a finite-difference
time-domain (FDTD) solution of Maxwell’s that permit accurate computation of
the radiated field from a transmitting antenna. Propagating through the air-earth
interface, scattering by subsurface targets and reception of the scattered fields
by receiving antenna. This technique is second-order accurate in time and
fourth-order accurate in space. In this paper, I demonstrate the synthetic radar
gram by applying this technique to two-dimensional examples from a subsurface
of stratified media.