Results 211 to 220 of about 10,881 (265)
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Complex impedance mapping using GPR survey methods
IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004GPR surveys are normally processed to provide reflection images free of static offsets and long period drift. However in many surveys the raw data is observed to contain systematic decays consistent with Cole-Cole models of complex impedance. The resulting time-constants can be used to provide additional constraints for geotechnical investigations of ...
J. Cull, D. Massie, J. Roberts
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GPR Methods for Hydrogeological Studies
2005Use of ground-penetrating radar (GPR) for geologic applications grew considerably in the 1970s. In recent years, use of GPR has increased in hydrogeological investigations, since the presence or absence of water dominates GPR responses.
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Investigation of Concrete Internal Structures With GPR Method
Proceedings, 2017Summary In this study, during the maintenance of part at the basement of the Department of Geophysical Engineering of the Technical University of Karadeniz, during the maintenance of, It is aimed to investigate by means of the Ground Radar (GPR) method to shows that the damaged reinforcing bar observed in the ceiling continue in the structure. For this,
A. Seren, I. Saricicek
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Evaluation of EMD-based Methods on GPR Data
Proceedings, 2014Empirical Mode Decomposition (EMD) is a relatively new technique for analysing non-linear and non-stationary time series. Ensemble Empirical Mode Decomposition (EEMD) and Complete Ensemble Empirical Mode Decomposition (CEEMD) are noise assisted and adaptive methods based on EMD.
M. Manataki, A. Vafidis, A. Sarris
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Derivative seismic processing method for GPR data
IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development, 2002Ground-penetrating radar (GPR) is a newly developed geophysics method. It belongs to one of the electromagnetic methods. In a broad sense, it is also a remote sensing technique, but the processing method for GPR data is quite different with the one for remote sensing data.
null Yu Haizhong, null Ying Xiaojian
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An Improved EMD Analysis Method for GPR Images
2011 International Conference on Computational and Information Sciences, 2011The EMD method can be adopted to analyze the GPR echo image because it is adaptive for non-stationary and non-linear signals. However, the direct wave in GPR signal contains considerable energy which will generate false object, even aggravate the end effect.
Lu Gan, Long Zhou, Xinge You
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An Efficient Sampling Method for Cross-Borehole GPR Imaging
IEEE Geoscience and Remote Sensing Letters, 2018This letter reformulates the recently proposed qualitative imaging technique, which is the near-field orthogonality sampling method (NOSM), for 2-D cross-borehole ground penetrating radar (GPR) applications. The NOSM employs the reduced scattered electric field as its indicator function. To derive a relationship between the scattered electric field and
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An analysis of the multi-fold method for GPR exploration
Applied Geophysics, 2006Multi-fold technology is widely applied in seismic exploration as a method of enhancing useful signals and suppressing noise interference to greatly increase the signal to noise ratio (S/N). The authors introduce it to ground-penetrating radar (GPR) surveys and compare the experimental results to the conventional profiling method to demonstrate the ...
Wang Bangbing +4 more
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GPR Acquisition Methods Comparison
2023 16th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS), 2023Dušan Gleich +4 more
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Investigation of GPR Configurations by Ray-Tracing Methods
2006 IEEE Conference on Radar, 2006Methods for locating and identifying buried assets are one focus of a large research project entitled 'mapping the underworld'. As of part of the project we are studying novel configurations for ground penetrating radar (GPR). There are two of important specifications for the GPR configurations: the bandwidth and the dynamic range.
Q. Shan, S.R. Pennock, M.A. Redfern
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