Results 161 to 170 of about 13,767 (192)
Some of the next articles are maybe not open access.
ULTRA: Wideband Ground Penetrating Radar
2006 European Radar Conference, 2006The frequency range employed in ground penetrating radar (GPR) systems is generally limited to 2 GHz because media loss increases dramatically at higher frequencies. Nevertheless, a series of applications exists in the Cultural Heritage field where the development of high frequency systems would significantly benefit, in terms of resolution, from an ...
PARRINI, FILIPPO +7 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
This chapter discusses the design of a pulsed-ground penetrating radar (GPR) system, radar transmitters, radar receivers and radar antennas.
null Liu +3 more
openaire +1 more source
Freshwater Ground-penetrating Radar
Near Surface 2009 - 15th EAGE European Meeting of Environmental and Engineering Geophysics, 2009The dielectric permittivity, conductivity and velocity of fresh water causes GPR to work well on and in this media. Various publications, conference abstracts and personal comments quote different antenna frequencies as optimal for freshwater surveying: these are tested with some simple field experiments. Few publications comment on antenna orientation
McKinley, J. M., Parker, R., Ruffell, A.
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Fundamentals of Ground Penetrating Radar
Symposium on the Application of Geophysics to Engineering and Environmental Problems 1989, 1989Ground penetrating radar (GPR) is a relatively new technique for investigating shallow geologic, engineering and hydrologic features. The principles and theory are based on the wave equation derived from Maxwell’s Equations for electromagnetic wave propagation, and the antenna designs have evolved from field testing.
openaire +1 more source
Ground penetrating radar tomography
1995 International Conference on Acoustics, Speech, and Signal Processing, 2002Presents a survey of theory and practice in tomographic imaging of subsurface features utilizing ground penetrating radar (GPR). The discussion includes: (i) A brief review of the equations governing radar scattering culminating in the Lippmann Schwinger (LS) equation.
openaire +1 more source
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
openaire +1 more source
Ultra wideband ground penetrating radar
13th International Crimean Conference Microwave and Telecommunication Technology, 2003. CriMiCo 2003., 2003Presented here is description of ground penetrating radar on the basis of continuous wave radiation within the frequency band from 2 GHz up to 8 GHz. The basic performances of the radar and examples of the buried objects detection are given.
A.S. Vishnevetsky +5 more
openaire +1 more source
Introduction to ground penetrating radar
2021This chapter has briefly discussed the use of GPR as an NDT and an NDE tool. In contrast to other NDT methods, GPR is based on EM wave propagation, which provides advantages and limitations. Among the advantages, one can cite relatively low-cost of survey, compact size of equipment, excellent trade-off between resolution and depth of detection, and ...
openaire +1 more source

