In this paper, a software tool developed in Matlab for stepped-frequency GPR (Ground Penetration Radar) is presented. It is intended for data simulation, image formation and basic GPR signal and image processing. The designed software can be useful for the researchers to help them analyze the performances of the different algorithms for data acquisition, signal processing and image processing. ...

Soils are three-dimensional (3D) natural bodies conSlStmg of unconsolidated mineral and organic materials that form a continuous blanket over most of the earth's land sUlface. At all scales of measurements, soils are exceedingly complex and variable in bio logical, chemical, physical, mineralogical, and electromagnetic properties. These properties influence the propaga tion velocity, attenuatio...

Ž . This paper describes a newly developed stepped-frequency ground penetrating radar SFGPR prototype operating across the 10–620 MHz frequency band. The SFGPR system has been developed to improve the maximum penetration depth Ž . capability of ground penetrating radar GPR applications without degradation of resolving power. The radar has the unique capability to employ a short gate at each fre...

At radar frequencies below 2 GHz, the mismatch between the 5 to 15 cm sensing depth of classical time domain reflectometry (TDR) probe soil moisture measurements and the radar penetration depth can easily lead to unreliable in situ data. Accurate quantitative measurements of soil water contents at various depths by classical methods are cumbersome and usually highly invasive. We propose an impr...

Radar remote sensing techniques are becoming more widely applied in dryland regions, because the lower frequency Synthetic Aperture Radar (SAR) systems enable significant penetration into the subsurface under very dry conditions, allowing subsurface characteristics to be interpreted. Field experiments at two contrasting sites in the Libyan Fazzān show ground-penetrating radar (GPR) can be used ...

We study the capabilities of low frequency radar systems to sound the subsurface in arid countries. This approach is based on the coupling between two complementary radar techniques: the airborne Synthetic Aperture Radar (SAR) used in L-band (1.2 GHz) for imaging large scale subsurface structures, and the Ground-Penetrating Radar (GPR) used between 500 and 900 MHz for sounding soils at a local ...

The Ground Penetrating Radar (GPR) WISDOM is designed to be part of 2018 ExoMars Rover payload. The main scientific objective of WISDOM is to characterize the material distribution within the first few meters of the Martian subsurface and to search for evidence of past and present life on Mars. The WISDOM radar will provide a penetration depth of about 3 meters with a resolution of a few centim...

Three-year forest above-ground biomass change is to be measured using L-band synthetic aperture radar (SAR) backscatter. Measurements are also made using P-band backscatter for comparison. The radar data were collected in the airborne BioSAR 2007 and BioSAR 2010 campaigns over the hemiboreal Remningstorp test site in southern Sweden. Regression models for biomass will be developed using referen...

The opening paper of this symposium was dedicated to an overview of the existing state of the practice and the advantages and limitations of non-destructive testing methods for the evaluation of historic materials of construction. The methods discussed in this paper include the state of the practice in visual, rebound, penetration, and ultrasound methods, as well as the physical measurement of ...

Information about the shape of the Earth’s surface is important in many applications as it helps users to visualize and analyze geographic problems accurately in 3D. This paper focuses on the InSAR technique of generating Digital Elevation Models (DEM) by using InSAR data acquired from an airborne platform. The data cover a study area of 4 km x 3 km located in Thetford Forest, East Anglia, Unit...