Reconstruction parameters of underground objects based on FDTD and optimization method

Author

Guangyou, Fang

Author_Institution

China Res. Inst. of Radiowave Propagation (CRIRP), Qingdao, China

Volume

6

fYear

2001

fDate

2001

Firstpage

2698

Abstract

The inverse of the parameters of underground targets is still highly in expectation in ground penetrating radar (GPR) applications. In this paper, the FDTD method and time-domain optimization algorithm have been used to reconstruct the permittivities of underground multiple targets. An iterative optimization algorithm has been put forward. The forward scattering data are also calculated by a 2.5 D-FDTD algorithm in order to better simulate the practical GPR situation. The relationship between the convergent rates of the inverse algorithm and the initialization values are studied

Keywords

buried object detection; finite difference time-domain analysis; inverse problems; iterative methods; optimisation; permittivity; radar detection; 2.5D-FDTD algorithm; FDTD method; GPR; forward scattering data; ground penetrating radar; initialization values; inverse algorithm; iterative optimization algorithm; permittivities; time-domain optimization algorithm; underground multiple targets; underground targets; Buried object detection; Finite difference methods; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.978134

Filename

978134