NDLI: GPR full waveform sensitivity and resolution analysis using an FDTD adjoint method

Content Provider	IEEE Xplore Digital Library
Author	Meles, G.A. Greenhalgh, S. Maurer, H.R. Green, A.G. van der Kruk, J.
Copyright Year	2011
Description	Author affiliation: ETH Zurich, Sonneggstrasse 5, 8092, Switzerland (Meles, G.A.; Greenhalgh, S.; Maurer, H.R.; Green, A.G.) \|\| Forschungszentrum Jülich, 52425, Germany (van der Kruk, J.)
Abstract	GPR tomography is a useful tool for mapping the conductivity and permittivity distributions in the shallow subsurface. By exploiting the full GPR waveforms it is possible to image sub-wavelength features and improve resolution relative to what is possible using ray-based approaches. Usually, mere convergence in the data space is the only criterion used to appraise the goodness of the final result, therefore limiting the reliability of the inversion. A better indication of the correctness of an inverted model and its various parts could be obtained by means of a formal resolution and information content analysis. We present here a novel method for computing the sensitivity kernels (Jacobian matrix) based on an FDTD adjoint method. We show that the column sum of absolute values of the Jacobian, often used as a proxy for model resolution, is inadequate, such that a formal resolution analysis should be performed. The eigenvalue spectrum of the pseudo-Hessian matrix provides a measure of the information content of the experiment and shows the extent of the unresolved model space.
Starting Page	1
Ending Page	6
File Size	320001
Page Count	6
File Format	PDF
ISBN	9781457703324
DOI	10.1109/IWAGPR.2011.5963863
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensitivity Permittivity Conductivity Computational modeling Jacobian matrices Receivers Image resolution Inversion FDTD Resolution
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

GPR Full-Waveform Sensitivity and Resolution Analysis Using an FDTD Adjoint Method

3D characterization of an aquifer using full-waveform inversion and amplitude analysis

2D frequency-domain full-waveform inversion of GPR data: Permittivity and conductivity imaging

2D full waveform inversion of GPR surface data: Permittivity and conductivity imaging

Crosshole GPR full-waveform inversion and waveguide amplitude analysis: Recent developments and new challenges

High resolution imaging of the unsaturated and saturated zones of a gravel aquifer using full-waveform inversion

Full-waveform inversion of cross-hole GPR data measured at the boise gravel aquifer

Full Waveform Sensitivity Analysis using a FDTD Adjoint Method

A New Vector Waveform Inversion Algorithm for Simultaneous Updating of Conductivity and Permittivity Parameters From Combination Crosshole/Borehole-to-Surface GPR Data

GPR full waveform sensitivity and resolution analysis using an FDTD adjoint method

Similar Documents

GPR Full-Waveform Sensitivity and Resolution Analysis Using an FDTD Adjoint Method

3D characterization of an aquifer using full-waveform inversion and amplitude analysis

2D frequency-domain full-waveform inversion of GPR data: Permittivity and conductivity imaging

2D full waveform inversion of GPR surface data: Permittivity and conductivity imaging

Crosshole GPR full-waveform inversion and waveguide amplitude analysis: Recent developments and new challenges

High resolution imaging of the unsaturated and saturated zones of a gravel aquifer using full-waveform inversion

Full-waveform inversion of cross-hole GPR data measured at the boise gravel aquifer

Full Waveform Sensitivity Analysis using a FDTD Adjoint Method

A New Vector Waveform Inversion Algorithm for Simultaneous Updating of Conductivity and Permittivity Parameters From Combination Crosshole/Borehole-to-Surface GPR Data

GPR full waveform sensitivity and resolution analysis using an FDTD adjoint method