Incorporating dispersive electrical properties in FDTD GPR models using a general Cole-Cole dispersion function

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].