Title :
Numerical simulation of GPR based on 3-D high-order FDTD
Author :
Mei, Yi-cai ; Huan, Zhi-xiang ; Wu, Xian-Liang ; Ren, Xin-gang ; Du, Hong-mei
Author_Institution :
Key Lab. of Intell. Comput. & Signal Process., Anhui Univ., Hefei, China
fDate :
Nov. 29 2010-Dec. 2 2010
Abstract :
The high-order finite-difference time-domain (HO-FDTD) technique is used in the simulation of ground-penetrating radar modeling in three dimensions (3-D), which can improve accuracy and reduce the error caused by numerical dispersion effectively. To absorb waves reflected from edges we implement convolutional perfectly matched layer (CPML) absorbing boundaries. It can efficiently absorb the reflections and greatly increase the computation efficiency. The surface-based reflection and cross-hole GPR modeling are simulated, and numerical results show the efficiency of the method.
Keywords :
convolution; electromagnetic wave reflection; finite difference time-domain analysis; ground penetrating radar; numerical analysis; solid modelling; 3D high-order FDTD; CPML absorbing boundary; convolutional perfectly matched layer; cross-hole GPR modeling; ground-penetrating radar modeling; high-order finite-difference time-domain technique; numerical dispersion; numerical simulation; surface-based reflection;
Conference_Titel :
Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-6906-2
DOI :
10.1109/ISAPE.2010.5696609
