Ground-Penetrating Radar Antenna Modeling
نویسندگان
چکیده
-Detecting subsurface objects by using GroundPenetrating Radar (GPR) has received considerable interest in recent years. In order to interpret radar signals from buried objects, one must have the ability to model a large range of objects, grounds and radar antennas, theoretically or numerically, so that a real GPR system can be simulated. Many investigations have been done for modeling objects (scatterers) and grounds, but few have involved realistic antennas. This paper presents a technique to model real GPR antennas located above a ground in which an object is buried. Numerical results are presented to verify this technique.
منابع مشابه
Electromagnetic inversion in monostatic ground penetrating radar: TEM horn calibration and application
A comprehensive analysis of electromagnetic (EM) inversion applied to pavement profiling by using a monostatic ground penetrating radar (GPR) is presented. Since in GPR systems using transfers EM (TEM) horns, the antenna is positioned close to the the investigated medium and a strong EM interaction occurs. This effect is taken into account by modeling the antenna with equivalent sources placed ...
متن کاملNear-field or Far-field Full-wave Ground Penetrating Radar Modeling as a Function of the Antenna Height above a Planar Layered Medium
The selection of a near-field or far-field ground-penetrating radar (GPR) model is an important question for an accurate but computationally effective characterization of medium electrical properties using full-wave inverse modeling. In this study, we determined an antenna height threshold for the near-field and farfield full-wave GPR models by analyzing the variation of the spatial derivatives...
متن کاملUltra-Wideband Antenna Design for GPR Applications: A Review
This paper presents a comparative review study on ultra-wideband (UWB) antenna technology for Ground Penetrating Radar (GPR) applications. The proposed antenna designs for UWB ground penetrating radar include a bow-tie antennas, Vivaldi antennas, horn antennas, planar antennas, tapered slot antennas, dipole antennas, and spiral antennas. Furthermore a comprehensive study in terms of operating f...
متن کاملDesign of a Reconfigurable Antenna for Ground Penetrating Radar Applications
This paper deals with the design and numerical analysis of a reconfigurable antenna implemented according to the total geometry morphing approach. The reconfigurable antenna is designed so to resemble a reference bowtie antenna, suitable for a stepped frequency Ground Penetrating Radar (GPR) applications, with geometry variable in order to work in different operative conditions. In particular, ...
متن کاملEffective Radiation Efficiency of Resistor-Loaded Bow-Tie Antenna Covered with Ferrite-Coated Conducting Cavity Located above Ground Surface
This paper analyzes the effective radiation efficiency of a ground-penetrating radar (GPR) consisting of two resistor-loaded bow-tie antennas covered with a ferrite-coated conducting cavity by using finite-difference time-domain (FDTD) method. The GPR is located above a lossless or lossy ground surface. The relation between the radiation powers into the ground and air, dissipated powers at the ...
متن کامل