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	Discontinuous Galerkin time-domain method for GPR simulation in dispersive media
	Lu, T ; Cai, W ; Zhang, PW
	2005
关键词	discontinuous Galerkin time-domain (DGTD) dispersive media ground-penetrating radar (GPR) perfectly matched layer (PML) ABSORBING BOUNDARY-CONDITION MAXWELLS EQUATIONS ELEMENT METHOD SCATTERING FDTD PROPAGATION ABSORPTION
英文摘要	This paper presents a newly developed high-order discontinuous Galerkin time-domain (DGTD) method for solving Maxwell's equations in linear dispersive media with UPML boundary treatment. A unified formulation is derived for linear dispersive media of Debye type and the artificial material in the UPML regions with the help of auxiliary differential equations. The DGTD employs finite-element-type meshes, and uses piecewise high-order polynomials for spatial discretization and Runge-Kutta method for time integrations. Arbitrary high-order accuracy can be obtained for scattering of various objects in dispersive media. After validating the numerical convergence of the DGTD method together with the second-order Yee's scheme, we apply this new method to the ground-penetrating radar for the detection of buried objects in a lossy half space.; Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology; SCI(E); EI; 37; ARTICLE; 1; 72-80; 43
语种	英语
出处	EI ; SCI
出版者	ieee transactions on geoscience and remote sensing
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/254173]
专题	数学科学学院
推荐引用方式 GB/T 7714	Lu, T,Cai, W,Zhang, PW. Discontinuous Galerkin time-domain method for GPR simulation in dispersive media. 2005-01-01.

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