air-to-ground radar
Design of Resistive-Loaded Transverse Electromagnetic Horn Antenna for Air-Coupled Ground Penetrating Radar
... for air-coupled ground penetrating radar (GPR) is proposed in this ...performance, air-coupled detection, high fidelity, compact structure, and simple ...concrete ground at a height of ...
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Detection of fluid leakage using ground penetrating radar
... Numerous activities are undertaken particularly in construction and provision o f underground infrastructure nowadays. These activities required precise and reliable monitoring service especially on water distribution ...
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Development of moving target detection algorithm using ADSP TS201 DSP Processor
... These radar technologies are being researched and developed over several decades both these techniques ( MTI &SAR) have some highs and ...from ground clutter. It is a mature radar technology that ...
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An entropy-based analysis of GPR data for the assessment of railway ballast conditions
... context, ground penetrating radar (GPR) is a rapid, non-destructive testing (NDT) technique, which is being increasingly used for the assessment and the health monitoring of railway track ...antennas, ...
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Prediction of rutting evolution in flexible pavement life cycle at the road network scale using an air-launched ground-penetrating radar system
... both air- launched GPR system measurements, performed six months apart from each other, and comprehensive literature studies dealing with this type of damage evolution in several flexible pavement sections during ...
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Imaging the structure of cave ice by ground-penetrating radar
... Ground-penetrating radar (GPR) is a geophysical method based on the propagation and reflection of electromagnetic waves (Davies and Annan, 1989) in the radio ...an air void) or a zone with a strong ...
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Application of Ground Penetrating Radar (GPR) In Detecting Target of Interest
... Figure 8 shows the hyperbolic curve for the target of drainage at Location B with depth of about 2.0 meters and the travel time is 27 ns. The graph in Figure 9 shows the highest amplitude at 1.008 meter depth where the ...
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Use of Ground Penetrating Radar for Transportation Infrastructure Maintenance
... Both dry, pre-wetted and dissolved salt particles (saturated brine) were placed on an asphalt sample, and scanned with the SF GPR. Details about the experimental set- up can be found in Paper I. As expected, no variation ...
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On the Use of Ground Penetrating Radar for Bridge Deck Assessment
... As indicated in Figure 4, the yellow and red boxes represent the weak reflections due to existence of expansion joint at the start and end of the scan path. The signal attenuation areas that indicate unclear rebar ...
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FDTD Based Numerical Framework for Ground Penetrating Radar Simulation
... Here FDTD is implemented to simulate a real application of GPR to detect reinforced buried rebar on a concrete wall. The medium used in the simulations corresponds to a homogenous medium (dry concrete with dielectric ...
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Characterizing permafrost active layer dynamics and sensitivity to landscape spatial heterogeneity in Alaska
... airborne radar remote sensing were used with in situ ground measurements to evaluate the model ...airborne radar retrievals in more continuous permafrost areas (PP ≥ 70 %) than in lower- ...
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The Research on the Analysis and Application of Detecting Underground Civil Air Defense with GPR
... penetrating radar (GPR) is a highly efficient shallow geophysical detection ...is radar image can intuitively reflect the structure of un- derground medium in field ...
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Investigating rainfall estimation from radar measurements using neural networks
... The goal of using the PCA concept in this context is to re- duce the dimensionality of the training data to a level where we still can get good performance. In this section, we train the neural network using the ...
10
The Problems of Standardization of Ground to Air Missiles
... Missile weapons are now one of the most important and promising combat weapons of modern armies. Missiles of various classes and destinations are used to equip subdivisions of land forces, navies, aviation, ...
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Ground deformation detection of the greater area of Thessaloniki (Northern Greece) using radar interferometry techniques
... space-borne radar interferometry (Gabriel et ...Aperture Radar (SAR) instruments onboard ...the ground, which may occur between the acquisitions of the two satellite ...the ground deformations ...
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Detection of Soil Pipes Using Ground Penetrating Radar
... Geophysical methods seem to be a promising tool to provide new, more detailed information on subsurface pipes. In natural environments, the following methods have already been tested in soil piping research: electrical ...
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Detection of soil pipes using ground penetrating radar
... The RAMAC GPR system (Malå GeoScience) with 500 MHz and 800 MHz shielded antennas with a GPS receiver (Leica) was used in the study. The use of antennas of different frequencies was motivated by the need to compare their ...
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Ground penetrating radar for underground sensing in agriculture: a review
... penetrating radar is designed to locate buried objects (Daniels, 2004) and has been used widely in civil engineering (Goodman, 1994; Maierhofer, 2003; Salucci et ...
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2D and 3D Geophysical Imaging of Polygonal Patterned Ground in the McMurdo Dry Valleys, Antarctica
... patterned ground found within Victoria Valley contained two distinct morphologies, one moderately developed with defined ridge and depressed centre geometries, and the other exhibited little to no ridge/crack ...
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Phase Statistical Model and Correction in Imagery of Ground Based Synthetic Aperture Radar (GBSAR) for Land Deformation Monitoring
... to ground movements and instability in human-made structures potentially lead to considerable human and economic ...Conventional ground and structural movement monitoring systems use geodetic methods such ...
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