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Fast modeling using FDTD method and wave front inverse method for multisensor GPR simulations in the time domain

✍ Scribed by Mathieu Neyrat; Christophe Guiffaut; Alain Reineix; François Reynaud

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 412 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.24153

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✦ Synopsis

Abstract

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

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