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000011380 0247_ $$2DOI$$a10.1109/TGRS.2010.2046670
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000011380 084__ $$2WoS$$aGeochemistry & Geophysics
000011380 084__ $$2WoS$$aEngineering, Electrical & Electronic
000011380 084__ $$2WoS$$aRemote Sensing
000011380 1001_ $$0P:(DE-HGF)0$$aMeles, G.A.$$b0
000011380 245__ $$aA New Vector Waveform Inversion Algorithm for Simultaneous Updating of Conductivity and Permittivity Parameters From Combination Crosshole/Borehole-to-Surface GPR Data
000011380 260__ $$aNew York, NY$$bIEEE$$c2010
000011380 300__ $$a3391 - 3407
000011380 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000011380 440_0 $$017961$$aIEEE Transactions on Geoscience and Remote Sensing$$v48$$x0196-2892$$y9
000011380 500__ $$aManuscript received July 2, 2009; revised October 23, 2009 and January 15, 2010. Date of publication June 7, 2010; date of current version August 25, 2010. This work was supported by grants from the Swiss Federal Institute of Technology Zurich (ETH Zurich) and the Swiss National Science Foundation.
000011380 520__ $$aWe have developed a new full-waveform ground-penetrating radar (GPR) multicomponent inversion scheme for imaging the shallow subsurface using arbitrary recording configurations. It yields significantly higher resolution images than conventional tomographic techniques based on first-arrival times and pulse amplitudes. The inversion is formulated as a non-linear least squares problem in which the misfit between observed and modeled data is minimized. The full-waveform modeling is implemented by means of a finite-difference time-domain solution of Maxwell's equations. We derive here an iterative gradient method in which the steepest descent direction, used to update iteratively the permittivity and conductivity distributions in an optimal way, is found by cross-correlating the forward vector wavefield and the backward-propagated vectorial residual wavefield. The formulation of the solution is given in a very general, albeit compact and elegant, fashion. Each iteration step of our inversion scheme requires several calculations of propagating wavefields. Novel features of the scheme compared to previous full-waveform GPR inversions are as follows: 1) The permittivity and conductivity distributions are updated simultaneously (rather than consecutively) at each iterative step using improved gradient and step length formulations; 2) the scheme is able to exploit the full vector wavefield; and 3) various data sets/survey types (e.g., crosshole and borehole-to-surface) can be individually or jointly inverted. Several synthetic examples involving both homogeneous and layered stochastic background models with embedded anomalous inclusions demonstrate the superiority of the new scheme over previous approaches.
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000011380 650_7 $$2WoSType$$aJ
000011380 65320 $$2Author$$aCrosshole radar
000011380 65320 $$2Author$$adielectric permittivity
000011380 65320 $$2Author$$aelectrical conductivity
000011380 65320 $$2Author$$afinite-difference time-domain (FDTD) methods
000011380 65320 $$2Author$$afull-waveform inversion
000011380 65320 $$2Author$$aGPR
000011380 65320 $$2Author$$aMaxwell's equations
000011380 65320 $$2Author$$asimultaneous updating
000011380 7001_ $$0P:(DE-Juel1)129561$$avan der Kruk, J.$$b1$$uFZJ
000011380 7001_ $$0P:(DE-HGF)0$$aGreenhalgh, S. A.$$b2
000011380 7001_ $$0P:(DE-HGF)0$$aErnst, J.R.$$b3
000011380 7001_ $$0P:(DE-HGF)0$$aMaurer, H.$$b4
000011380 7001_ $$0P:(DE-HGF)0$$aGreen, A.G.$$b5
000011380 773__ $$0PERI:(DE-600)2027520-1$$a10.1109/TGRS.2010.2046670$$gVol. 48, p. 3391 - 3407$$p3391 - 3407$$q48<3391 - 3407$$tIEEE transactions on geoscience and remote sensing$$v48$$x0196-2892$$y2010
000011380 8567_ $$uhttp://dx.doi.org/10.1109/TGRS.2010.2046670
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000011380 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
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