Title :
Reconstruction parameters of underground objects based on FDTD and optimization method
Author_Institution :
China Res. Inst. of Radiowave Propagation (CRIRP), Qingdao, China
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978134
