Title :
Efficient modeling of electromagnetic characteristics of soil for FDTD ground penetrating radar simulation
Author :
Rappaport, C.M. ; Weedon, W.H.
Author_Institution :
Center for Electromagn. Res., Northeastern Univ., Boston, MA, USA
Abstract :
For particular frequency ranges, electromagnetic waves are suitable for detecting buried objects. Ground penetrating radar (GPR) is an important tool for determining the locations of land mines, unexploded ordnance, improperly buried waste, or large obstacles which may impact excavation operations. It is useful to understand the effects of the soil surrounding scattering targets, by numerically simulating in the time domain the propagation, interaction, and scattering of EM waves by buried two-dimensional model objects such as pipes, cables, rocks, drums, and layers of aqueous waste. We derive functional dependencies for /spl epsi/ and /spl sigma/ and develop a simple but accurate time-domain model of soil.
Keywords :
UHF radio propagation; VHF radio propagation; electromagnetic wave scattering; finite difference time-domain analysis; object detection; radar cross-sections; radar detection; soil; 30 MHz to 3 GHz; EM waves; FDTD ground penetrating radar simulation; GPR; aqueous waste; buried objects; buried two-dimensional model objects; cables; drums; electromagnetic characteristics; excavation operations; functional dependencies; improperly buried waste; interaction; land mines; large obstacles; pipes; propagation; rocks; scattering; soil; time domain; unexploded ordnance; Buried object detection; Electromagnetic modeling; Electromagnetic scattering; Frequency; Ground penetrating radar; Landmine detection; Numerical simulation; Radar detection; Radar scattering; Soil;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549675
