Saturday, March 27

MS33
Inverse Problems for GPR Exploration

9:45 AM-11:45 AM
Room: Ballroom C

Ground penetrating radar reveals variations in dielectric properties of the soil to depths of perhaps 25 m. It is widely used in environmental and civil engineering applications and shows promise for detection of pollutants and buried objects under favorable conditions. The speakers in this session will assess current methodology and review recent work which seeks to treat GPR data processing as an inverse problem in wave propagation.

Organizer: Michel Kern
INRIA- Rocquencourt, Le Chesnay, France
William W Symes
Rice University

9:45-10:10 Three-Dimensional GPR Modelling and Inversion Strategies

Stefan Schlaeger and Johannes Gottlieb, Universität Karlsruhe, Germany

10:15-10:40 Improving FDTD Modeling of Electromagnetic Wave Propagation in Frequency-Dependent Media

Tim Bergmann, Universität Hamburg, Germany

10:45-11:10 Tomographic Inversion of GPR Data for Determination of Soil Moisture Content

Roelof Versteeg, Columbia University

11:15-11:40 FDTD Modeling and Least-Squares Inversion of 2D GPR Data

Mohammed Ghemires, INRIA-Rocquencourt, Le Chesnay, France; Michel Kern, Organizer; and Guillaume Vigo, INRIA-Rocquencourt, Le Chesnay, France

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tjf, 10/29/98, MMD, 1/6/99