Accession Number : ADA300567
Title : Full Waveform Inverse Modeling of Ground Penetrating Radar Data: An Initial Approach.
Descriptive Note : Final rept.,
Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB
Personal Author(s) : Simms, Janet E. ; Butler, Dwain K. ; Powers, Michael H.
PDF Url : ADA300567
Report Date : SEP 1995
Pagination or Media Count : 138
Abstract : Ground penetrating radar (GPR) surveys are often interpreted in a qualitative manner to identify anomalies. This method of interpretation is used to determine the existence of a feature when specific properties of the feature are of no interest. However, GPR data can also be interpreted quantitatively to give more definitive depths, geometry, and electromagnetic (EM) properties of the subsurface materials. Existing analysis procedures do not consider EM wave attenuation, dispersion, scattering, geometric spreading, or interface reflection transmission losses. The aim of this research is to develop interpretation procedures which utilize the full GPR waveform for determining layer thicknesses and the EM properties of subsurface materials. The work consisted of three phases: (1) review existing capability for full waveform forward modeling of GPR signals, (2) develop a catalog of theoretical GPR receiver waveforms for representative layered models, and (3) examine the feasibility of developing an inverse modeling procedure to determine physical properties by comparing full waveform forward solutions to measured GPR signatures.
Descriptors : *FAULTS(GEOLOGY), *RADAR REFLECTIONS, THICKNESS, INTERFACES, LAYERS, WAVEFORMS, ELECTROMAGNETIC WAVE PROPAGATION, ELECTROMAGNETIC RADIATION, ATTENUATION, INVERSION, INVERSE SCATTERING, SUBSURFACE, TRANSMISSION LOSS.
Subject Categories : Geology, Geochemistry and Mineralogy
Active & Passive Radar Detection & Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE