Results 261 to 270 of about 37,881 (309)
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2016
Ground-penetrating radar is a near-surface geophysical method that reflects radar waves from buried interfaces in the ground and produces two and three-dimensional images of buried geological and anthropogenic units. When many thousands or hundreds of thousands of reflections are displayed in two-dimensional vertical slices, profiles of these units can
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Ground-penetrating radar is a near-surface geophysical method that reflects radar waves from buried interfaces in the ground and produces two and three-dimensional images of buried geological and anthropogenic units. When many thousands or hundreds of thousands of reflections are displayed in two-dimensional vertical slices, profiles of these units can
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Multistatic Ground-Penetrating Radar Experiments
IEEE Transactions on Geoscience and Remote Sensing, 2007A multistatic ground-penetrating radar (GPR) system has been developed and used to measure the response of a number of targets to produce data for the investigation of multistatic inversion algorithms. The system consists of a linear array of resistive-vee antennas, microwave switches, a vector network analyzer, and a 3-D positioner, all under computer
Tegan Counts +4 more
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2014
This chapter discusses the design of a pulsed-ground penetrating radar (GPR) system, radar transmitters, radar receivers and radar antennas.
null Liu +3 more
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This chapter discusses the design of a pulsed-ground penetrating radar (GPR) system, radar transmitters, radar receivers and radar antennas.
null Liu +3 more
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Extrinsic calibration of a ground penetrating radar
2016 IEEE International Conference on Automation Science and Engineering (CASE), 2016To develop a multi-modal in-traffic bridge deck scanning device, we need to calibrate extrinsic parameters of a ground penetrating radar (GPR). GPR output is in a non-Euclidean coordinate system because it only detects underground objects relative to road surface.
Chieh Chou +3 more
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Ground penetrating radar for tunnel detection
2010 IEEE International Geoscience and Remote Sensing Symposium, 2010Ground penetrating radar (GPR) systems have important civil and military applications and can be used for surveying subsurface structures such as bunkers, tunnels and buried pipes. However, GPR systems for detecting deep tunnels still face many challenges, and their performance often depends on soil types, specific targets and subsurface geological ...
Mustafa Kuloglu, Chi-Chih Chen
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UWB LNAs for ground penetrating radar
2009 IEEE International Symposium on Circuits and Systems, 2009Two LNA topologies for use in UWB systems are examined and compared in this paper. Design specifications have been derived from a ground penetrating radar system which is the target application. Circuits have been designed to cover the frequency range from 3.1GHz to 10.6 GHz.
Markus Robens +2 more
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Efficient Deconvolution of Ground-Penetrating Radar Data
IEEE Transactions on Geoscience and Remote Sensing, 2015The time (vertical) resolution enhancement of ground-penetrating radar (GPR) data by deconvolution is a long-standing problem due to the mixed-phase characteristics of the source wavelet. Several approaches have been proposed, which take the mixed-phase nature of the GPR source wavelet into account.
Cedric Schmelzbach, Emanuel Huber
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2010
Ground Penetrating Radar (GPR) called also Radar (Radio Detecting and Ranging) is an application of electromagnetic (EM) waves. It has been developed in the last decades for detection, distance measurement, defects and anomaly localization, and characterization of dielectric materials such as soil, concrete, masonry and wood. The frequency range of the
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Ground Penetrating Radar (GPR) called also Radar (Radio Detecting and Ranging) is an application of electromagnetic (EM) waves. It has been developed in the last decades for detection, distance measurement, defects and anomaly localization, and characterization of dielectric materials such as soil, concrete, masonry and wood. The frequency range of the
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Selected Bibliography on Ground Penetrating Radar
Symposium on the Application of Geophysics to Engineering and Environmental Problems 1988, 1988The following is a selected bibliography on ground penetrating radar. It is excerpted from a more comprehensive bibliography (approximately four times larger) to be published next year in the second volume of the Society of Exploration Geophysicist's Electromagnetic Volumes, edited by Misac Nabighian.
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Theory of ground-penetrating radars
Journal of Inverse and Ill-Posed Problems, 1997Summary: An inverse problem is formulated and its analytical solution is given. The problem consists in determining the conductivity and permittivity of the inner Earth layers from the measurements of electromagnetic fields on the surface of the Earth. The problem is of interest, for example, in geophysics.
Ramm, A. G., Shcherpov, A. V.
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