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Fast modeling using FDTD method and wave front inverse method for multisensor GPR simulations in the time domain
Author(s) -
Neyrat Mathieu,
Guiffaut Christophe,
Reineix Alain,
Reynaud François
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24153
Subject(s) - finite difference time domain method , ground penetrating radar , superposition principle , microwave , inversion (geology) , time domain , radar , computer science , inverse , microwave imaging , inverse problem , algorithm , finite difference method , electronic engineering , acoustics , engineering , optics , mathematics , physics , computer vision , telecommunications , geology , mathematical analysis , geometry , paleontology , structural basin
This article deals with a fast numerical method for GPR simulation of great scenes. Electromagnetic wave propagation in heterogeneous media is analyzed using a finite‐difference time‐domain (FDTD)‐based method. The use of a moving subdomain allows dealing with large scale and realistic B‐scan or C‐scan in a reasonable computational time. A simple and fast inversion method based on a coherent superposition of signal phases will also be exposed. The performances of this method for the localization and shape recovering of various buried objects will be pointed out. This process is very easy to implement and also has the advantage to be used for monostatic or multisensor radar records. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 796–802, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24153