Results 181 to 190 of about 2,389 (219)
Some of the next articles are maybe not open access.
A novel method for automatic clutter detection in radargrams acquired by orbiting radar sounders
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012Orbiting radar sounders are very important instruments that can probe the subsurface of planetary bodies from orbit. In particular, they produce vertical profiles revealing the geological structure of the subsurface. As a consequence of their nadir-looking acquisition geometry, radargrams may be affected by spurious off-nadir echoes due to surface ...
Adamo Ferro, Lorenzo Bruzzone
exaly +2 more sources
Multilayer simulations for accurate geological interpretations of SHARAD radargrams
Planetary and Space Science, 2011Abstract SHARAD (SHAllow RADar) is a nadir-looking Synthetic Aperture Ground Penetrating Radar on board NASA's 2005 Mars Reconnaissance Orbiter. There are three main characteristics that define the performance of this instrument: ground penetration (due to the operational frequency, the observed echoes can be related to reflections from surface or ...
Mauro G Spagnuolo
exaly +2 more sources
Synthetic radargrams from electrical conductivity and magnetic permeability variations
Journal of Applied Geophysics, 1996The objective of this work is to assess the importance of electrical conductivity and magnetic permeability variations in ground penetrating radar (GPR) reflections commonly interpreted only in terms of permittivity variations. We use the matrix propagator approach to obtain the surface electric field associated with a horizontally layered model whose ...
O Lazaro-Mancilla, E Gomez-Trevino
exaly +2 more sources
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Radar for Icy Moon Exploration (RIME) is designed to characterize the subsurface geology of the Jovian icy moons. The RIME radargrams will show the combined response of a number of geophysical and geological characteristics of the ice-shells of these moons.
Sanchari Thakur, Lorenzo Bruzzone
exaly +2 more sources
Radar for Icy Moon Exploration (RIME) is designed to characterize the subsurface geology of the Jovian icy moons. The RIME radargrams will show the combined response of a number of geophysical and geological characteristics of the ice-shells of these moons.
Sanchari Thakur, Lorenzo Bruzzone
exaly +2 more sources
Depositional Architecture of Fluvial Deposits in the Resende Basin Identified With Radargrams (GPR)
12th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 15–18 August 2011, 2011The knowledge of the depositional architecture of sedimentary rocks to create predictive models for exploration and exploitation of economic minerals as well as for environmental purposes is of paramount importance. Ground penetrating radar (GPR) method has been proven to be very effective to map quickly and cheaply shallow geological structures using ...
Rodrigo Pereira de Souza Cavalcante +3 more
exaly +2 more sources
No evidence of reflectors on Jezero radargrams 
2022<p><strong>Introduction:</strong></p> <p>The Perseverance rover landed at Jezero crater in 2021, close to the delta of an ancient river (<em>1</em>). This crater once hosted a paleolake (<em>2</em>).
Federico Mansilla +3 more
openaire +1 more source
Radargram Filter Using Singularity Expansion Method (SEM)
2020 IEEE International Conference on Computational Electromagnetics (ICCEM), 2020In this paper, a clutter removal technique for radargrams obtained with a ground penetration radar (GPR) is presented. The technique, based in the singularity expansion method (SEM), allows to select the poles of the recorded signals that correspond to clutter.
Eder Fabian Ruiz +5 more
openaire +1 more source
Filtering of Radargram-Traces with the Wavelet-Transform
60th EAGE Conference and Exhibition, 1998Ground penetrating radar measurements represent a relatively new, fast and high-resolution investigation method for near surface objects. To explain and to interpret phenomena occurring in nature preliminary investigations with synthetically made radargrams have to be done.
C. Seegraef, B. Forkmann
openaire +1 more source
2-D synthetic radargrams for archaeological investigation
Fourth International Conference on Ground Penetrating Radar, 1992Ground radar is being used in archaeological surveys with considerable success. The structures at excavated sites nevertheless often turn out to be different from those determined from raw radar profiles. The primary reason for these differences is the broadness of the microwave beam transmitted into the ground (see Fig. 1).
Dean Goodman, Yasushi Nishimura
openaire +1 more source
A Coherent Multilayer Simulator of Radargrams Acquired by Radar Sounder Instruments
IEEE Transactions on Geoscience and Remote Sensing, 2018Reliable electromagnetic simulators are of prime importance for the design of radar sounder instruments and for supporting the subsequent analysis of their data. In this paper, we present a coherent, facet method-based simulator that can compute radar echoes from the subsurface of a target area with an arbitrary number of geological layers, thus going ...
Gerekos, Christopher +5 more
openaire +2 more sources