Results 81 to 90 of about 63,432 (250)
Interferometric Synthetic Aperture Radar (InSAR) in the Context of Bridge Monitoring
, 2020 The structural health of critical transport infrastructure, such as bridges, is difficult to assess and monitor. Existing methods of evaluation rely predominantly on visual inspection and/or the installation of sensors to measure the in-situ performance of structures.
Selvakumaran, Sivasakthy +3 more
openaire +2 more sources
Towards Monocular Digital Elevation Model (DEM) Estimation by Convolutional Neural Networks - Application on Synthetic Aperture Radar Images [PDF]
arXiv, 2018 Synthetic aperture radar (SAR) interferometry (InSAR) is performed using repeat-pass geometry. InSAR technique is used to estimate the topographic reconstruction of the earth surface. The main problem of the range-Doppler focusing technique is the nature of the two-dimensional SAR result, affected by the layover indetermination.
arxiv
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.Abstract The cause of unrest at large quaternary silicic calderas, specifically whether the source is magmatic or hydrothermal, has critical implications for the potential eruptive hazard and is debated, even at well‐studied systems. Recent advances in Interferometric Synthetic Aperture Radar (InSAR), driven by the Sentinel‐1 mission, allow us to ...
E. W. Dualeh, J. Biggs
wiley +1 more source
A Method for Removing Outlier Noise from ArrayInSAR Point Clouds based on Hybrid Filtering [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesArray Interferometric Synthetic Aperture Radar (ArrayInSAR) point cloud is a point cloud obtained by three-dimensional imaging of two-dimensional Synthetic Aperture Radar (SAR) images using array interferometric synthetic aperture radar technology, which
F. Ji +6 more
doaj +1 more source
3D Near-Field Millimeter-Wave Synthetic Aperture Radar Imaging [PDF]
arXiv, 2020 In this paper, we present 3D high resolution radar imaging process at millimeter-Wave (mmWave) frequencies by creating the effect of a large aperture synthetically. We use a low cost fully integrated Frequency Modulated Continuous Wave (FMCW) radar operating at $\rm 79\;GHz$ and then perform Synthetic Aperture Radar (SAR) imaging in the near-filed zone.
arxiv
Uncertainty Reduction for Subaerial Landslide‐Tsunami Hazards
Journal of Geophysical Research: Earth Surface, Volume 130, Issue 4, April 2025.Abstract Subaerial rock slopes may generate a tsunami by rapidly moving into the water. Large uncertainty in landslide characteristics propagates into large uncertainty in tsunami hazard, making hazard assessment more difficult for land and emergency managers.
Katherine R. Barnhart +4 more
wiley +1 more source
Compressive sensing for interferometric inverse synthetic aperture radar applications
IET Radar, Sonar & Navigation, 2016 The applicability of interferometric inverse synthetic aperture radar (InISAR) techniques to images reconstructed via compressive sensing (CS)‐based algorithms is investigated. Specifically, the three‐dimensional (3D) reconstruction algorithm is applied after exploiting CS for data compression and image reconstruction.
BACCI, ALESSIO +5 more
openaire +2 more sources
SARGDV: Efficient identification of groundwater-dependent vegetation using synthetic aperture radar [PDF]
arXiv, 2020 Groundwater depletion impacts the sustainability of numerous groundwater-dependent vegetation (GDV) globally, placing significant stress on their capacity to provide environmental and ecological support for flora, fauna, and anthropic benefits. Industries such as mining, agriculture, and plantations are heavily reliant on groundwater, the over ...
arxiv
A Statistical View on Synthetic Aperture Imaging for Occlusion Removal [PDF]
, 2019 Synthetic apertures find applications in many fields, such as radar, radio telescopes, microscopy, sonar, ultrasound, LiDAR, and optical imaging. They approximate the signal of a single hypothetical wide aperture sensor with either an array of static small aperture sensors or a single moving small aperture sensor.
arxiv +1 more source
Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 4, April 2025.Abstract The extent and distribution of tropical peatlands, and their importance as a vulnerable carbon (C) store, remain poorly quantified. Although large peatland complexes in Peru, the Congo basin, and Southeast Asia have been mapped in detail, information on many other tropical areas is uncertain.
A. Uhde +9 more
wiley +1 more source