Results 1 to 10 of about 346 (105)
DEM-Based UAV Geolocation of Thermal Hotspots on Complex Terrain
Remote SensingReliable geolocation of thermal hotspots, such as smoldering embers that can reignite after vegetation fire suppression, deep-seated peat fires, or underground coal seam fires, is critical to prevent fire resurgence, limit prolonged greenhouse gas ...
Lucile Rossi +6 more
doaj +4 more sources
Precise Geolocation of UAV SAR Images Using a Triple-View Configuration Without DEM Data
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingTo overcome the limitations of synthetic aperture radar (SAR) image geolocation onboard unmanned aerial vehicles (UAVs) without the high-resolution digital elevation model (DEM) data, multipass geolocation methods have been explored.
Jing Ning +5 more
doaj +4 more sources
Understanding the Influence of DEM Vertical Accuracy on Sentinel-1 Geolocation Performance [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesDigital Elevation Models (DEMs) are fundamental for ensuring the geolocation accuracy of Synthetic Aperture Radar (SAR) imagery, as vertical errors in elevation data propagate into horizontal displacements.
S. Oğuzhanoğlu, F. Sunar
doaj +3 more sources
Improving GEDI Footprint Geolocation Using a High-Resolution Digital Elevation Model
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Global Ecosystem Dynamics Investigation (GEDI) is a lidar system on-board the International Space Station designed to study forest ecosystems. However, GEDI footprint low accuracy geolocation is a major impediment to the optimal benefit of the data.
Anouk Schleich +3 more
doaj +3 more sources
Combined DEM Extration Method from StereoSAR and InSAR [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 A pair of SAR images acquired from different positions can be used to generate digital elevation model (DEM). Two techniques exploiting this characteristic have been introduced: stereo SAR and interferometric SAR.
Z. Zhao +4 more
doaj +1 more source
Remote Sensing, 2023 The block adjustment method can correct systematic errors in the bistatic Synthetic Aperture Radar Interferometry (InSAR) satellite system and effectively improve the accuracy of the InSAR-generated Digital Elevation Model (DEM).
Rui Wang +3 more
doaj +1 more source
TOWARDS AN URBAN DEM GENERATION WITH SATELLITE SAR INTERFEROMETRY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 This paper analyzes the potentials offered by the TanDEM-X mission for the generation of urban DEMs. Operationally acquired urban Raw DEMs are validated using as reference a LiDAR DEM.
C. Rossi +6 more
doaj +1 more source
Remote Sensing, 2022 The spaceborne Global Navigation Satellite Systems Reflectometry (GNSS-R) offers versatile Earth surface observation. While the accuracy of the computed geometry, required for the implementation of the technique, degrades when Earth’s surface topography ...
Minfeng Song +7 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2023 Spaceborne interferometric synthetic aperture radar (InSAR) technology is an effective method to obtain digital elevation model (DEM) data. The bistatic InSAR configuration of the inclined‐geosynchronous (InGEO) transmitter with low earth orbit (LEO ...
Chao Dai, Feng Tian, Zhiyong Suo
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Laser altimeters are capable of achieving fine mapping of the permanently shadowed regions (PSRs) of the Moon, which can provide fundamental topographic data for planetary missions.
Huan Xie +9 more
doaj +1 more source