Title :
Numerical modeling of a spiral-antenna GPR system
Author :
McFadden, Michael ; Scott, Waymond R., Jr.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
To better study the ground penetrating radar (GPR) problem, an important step is to develop an accurate simulation of the fields induced by the radiating antennas. In this work, a finite-difference time-domain (FDTD) model of a spiral-antenna GPR system was developed and verified against measurements of a prototype system. The paper discusses difficulties in modeling the antenna elements and presents evidence that the model properly predicts the response of the antennas to scatterers in the presence of the ground.
Keywords :
geophysical equipment; ground penetrating radar; remote sensing by radar; spiral antennas; finite difference time domain model; ground penetrating radar; prototype system; spiral-antenna GPR system; Antenna measurements; Coaxial components; Finite difference methods; Ground penetrating radar; Numerical models; Predictive models; Prototypes; Reflection; Spirals; Time domain analysis;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5418013
