We report results from a field survey performed on a recently discovered impact field in the southwestern Egyptian desert, using a 270 MHz Ground-Penetrating Radar (GPR). This hyperarid region has significant similarities to the Martian heavily eroded mid-latitude cratered terrains in terms of crater density, size, and geomorphology. Profiles across small-buried craters revealed a coherent sequ...

This work described the use of two methods to detect possible abnormalities, debris and cracks inside block of marble. The first method was based on the direct detection of block of marble buried at depth of 0.2 m using Ground Penetrating Radar (GPR). The second method was based on the use of simulation software named GprMax2D for the same block but at depth of 0.5 m. Our results showed that GP...

Ground-penetrating radar processing and interpretation methods have been developed over time that usually follow a certain standard pathway, which leads from obtaining the raw reflection data to the production of amplitude slice-maps for three-dimensional visualization. In this standard series of analysis steps a great deal of important information contained in the raw data can potentially be l...

This paper presents an imaging approach for Multiple Input Output Ground Penetrating Radar (MIMO GPR) systems working in down-looking contactless mode. The exploits a linear approximation of the scattering phenomenon and is based on ray-based propagation model, which takes into account presence air-soil interface. Accordingly, Interface Reflection Point concept extended to case MIMO GPR. propos...

This work offers a defect segmentation approach for the nondestructive testing of tunnel lining internal defects using Ground Penetrating Radar (GPR) data. Given GPR synthetic data, it maps structure, CNN named Segnet coupled with Lovász softmax loss function, which enhances accuracy, automation, and efficiency identification. Experiments both actual data show that our innovative method overcom...

This thesis is concerned with detection logarithms of non-metallic anti-personnel (AP) land mines and the related signal processing using stepped-frequency ground penetrating radar (SF-GPR) technique. Modern land mines are essentially made out of plastic and ceramic materials. This makes their detection using GPR sensor almost impossible without proper signal processing. Many signal processing ...

In this paper, first, a new range-estimation technique using time reversal (TR) for ground-penetrating-radar (GPR) applications is presented. The estimator is referred to as the TR/GPR range estimator. The motivation for this paper comes from the need of accurately estimating the location of underground objects such as landmines or unexploded ordinance for safe clearance. Second, the Cramér–Rao...

In this work, we present an inverse scattering approach to address the timely detection of damage and leakage from pipelines via multi-bistatic ground penetrating radar (GPR) surveys. The approach belongs to the class of linearized distorted wave models and explicitly accounts for the available knowledge on the investigated scenario in terms of pipe position and size. The inversion is regulariz...

Total attenuation in ground-penetrating radar (GPR) was directly measured in radargrams of the Bishop Tuff, CA, from 12.5–200 MHz. The weak variation of attenuation with frequency reaffirms the "GPR Plateau" concept and argues against a constant-Q model. Electrolytic absorption —determined using collocated DC resistivity profiling/ sounding—accounts for about half of the attenuation and is by d...