Title :
Incorporating dispersive electrical properties in FDTD GPR models using a general Cole-Cole dispersion function
Author :
Giannakis, Iraklis ; Giannopoulos, Antonios ; Davidson, Nigel
Author_Institution :
Inst. for Infrastruct. & Environ., Univ. of Edinburgh, Edinburgh, UK
Abstract :
A new technique based on a hybrid linear-nonlinear optimization is suggested in order to simulate the Cole-Cole dispersion mechanism using a number of Debye functions. A novel method to implement this multi-Debye medium, based on a recursive integration algorithm is also presented. These new techniques are used to simulate the experimental Cole-Cole parameters for dry and moist sand [20].
Keywords :
finite difference time-domain analysis; ground penetrating radar; optimisation; sand; Cole-Cole dispersion function; Debye functions; FDTD GPR models; dispersive electrical properties; dry sand; hybrid linear-nonlinear optimization; moist sand; Dielectrics; Dispersion; Equations; Finite difference methods; Mathematical model; Optimization; Time domain analysis; Cole-Cole; Debye; FDTD; non-linear optimization;
Conference_Titel :
Ground Penetrating Radar (GPR), 2012 14th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-2662-9
DOI :
10.1109/ICGPR.2012.6254866
