Results 1 to 10 of about 135,152 (246)
Engineering Proceedings, 2023 NovAtel has recently leveraged its expertise in both receiver design and anti-jam technology to develop solutions for space- and weight-constrained applications in challenged GNSS environments.
Ali Broumandan, Sandy Kennedy
doaj +1 more source
Superpixel Segmentation for PolSAR Images Based on Geodesic Distance
Leida xuebao, 2021 Considering the lack of similarity capabilities of the distance metric used in the traditional Polarimetric Synthetic Aperture Radar (PolSAR) image superpixel segmentation algorithm, a novel PolSAR image superpixel segmentation algorithm based on ...
Huanxin ZOU +4 more
doaj +1 more source
ICESat‐2/ATLAS Onboard Flight Science Receiver Algorithms: Purpose, Process, and Performance
Earth and Space Science, 2021 The Advanced Topographic Laser Altimetry System (ATLAS) is the sole instrument on the Ice, Cloud, and land Elevation Satellite 2 (ICESat‐2). Without some method of reducing the transmitted data, the volume of ATLAS telemetry would far exceed the normal X‐
J. F. McGarry +8 more
doaj +1 more source
Heritage, 2022 GPR (Ground Penetrating Radar) is a technology widely applied today in the field of non-destructive investigations. From its first applications, the field of use has involved environmental and archaeological contexts and, only recently, non-destructive ...
Massimo Coli +5 more
doaj +1 more source
Construction of rhombic triacontahedron discrete global grid systems
International Journal of Digital Earth, 2022 Discrete Global Grid System (DGGS) is a new multi-resolution geospatial data modeling and processing scheme for the digital earth. The icosahedron is commonly regarded as an ideal polyhedron for constructing DGGSs with small distortions; however, the ...
Xiaoyu Liang +5 more
doaj +1 more source
HYBRID AERIAL SENSOR DATA AS BASIS FOR A GEOSPATIAL DIGITAL TWIN [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 More and more cities declare themselves to be a smart city or plan to be the same. Smart cities require a solid data source as basis for all further actions and the urban digital twin is the basis on which all information is collected and analysed.
U. Bacher
doaj +1 more source
Indexing Mixed Aperture Icosahedral Hexagonal Discrete Global Grid Systems
ISPRS International Journal of Geo-Information, 2020 Discrete global grid systems (DGGSs) are an emerging multiresolution 3D model used to integrate and analyze big earth data. The characteristic of multiresolution is usually realized by hierarchically subdividing cells on the sphere using certain ...
Rui Wang +3 more
doaj +1 more source
An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation [PDF]
MATEC Web of ConferencesIn this paper an alternative approach for generating Forming Limit Curve (FLC) of a Dual-Phase (DP800) steel is presented and validated. Investigation was performed using a rate-dependent crystal plasticity (CP) framework solved through a spectral solver
Venkata Kiranmayi Abburi +3 more
doaj +1 more source
Tilings of a Domain on a Hexagon Mesh with Balanced 3-Tiles [PDF]
Discrete Mathematics & Theoretical Computer Science, 2001 In this article, we study the question of tilings on a hexagon mesh with balanced 3-tiles. This problem has been studied by Conway and Lagarias in [CL90], by studying the tiling groups, in fact a group containing the tiling-groups, and their Cayley ...
Gilles Radenne
doaj +1 more source
3D CONTENT GENERATION USING HYBRID AERIAL SENSOR DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 In aerial data acquisition a new era started with the introduction of the first real hybrid sensor systems, like the Leica CityMapper-2. Hybrid in this context means the combination of an (oblique) camera system with a topographic LiDAR into an ...
U. Bacher
doaj +1 more source