Results 71 to 80 of about 2,370 (138)
MSWD: A Hybrid Machine‐Learning Framework for Slant Wet Delay Modeling
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.Abstract Space geodetic techniques such as Global Navigation Satellite Systems (GNSS) and Very Long Baseline Interferometry (VLBI) are limited by direction‐dependent tropospheric delays, with slant wet delay (SWD) being the most variable component and a major error source.
Zhenyi Zhang, Benedikt Soja
wiley +1 more source
Research in mathematical geodesy
, 2005 In the Mathematical Geodesy Division of the Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences research has been done mainly in two areas: theoretical foundation of the evaluation of geodetic measurements and the ...
Kalmár, J. +3 more
core +1 more source
Groebner Basis in Geodesy and Geoinformatics
, 2014 In geodesy and geoinformatics, most problems are nonlinear in nature and often require the solution of systems of polynomial equations. Before 2002, solutions of such systems of polynomial equations, especially of higher degree remained a bottleneck ...
Joseph Awange (21315797) +2 more
core +2 more sources
SensorsIn our contribution, we conduct a thematic literature review on trajectory estimation using a decentralized multi-sensor system based on robotic total stations (RTS) with a focus on unmanned aerial system (UAS) platforms.
Lucas Dammert +4 more
doaj +1 more source
Automatic in-situ radiometric calibration for mobile laser scanning: Compensating for distance and angle of incidence effects [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesLaser scanner intensity data provide valuable insights into material properties, enabling applications such as point cloud segmentation and material probing.
H. Laasch, T. Medic, A. Wieser
doaj +1 more source
Ionospheric Data Fusion With GNSS, GNSS‐RO and Satellite Altimetry Based on Machine Learning
Journal of Geophysical Research: Machine Learning and ComputationGlobal Ionospheric Maps (GIMs) are essential in Global Navigation Satellite System (GNSS) applications, particularly for correcting ionospheric delays in single‐frequency positioning. GIMs are mainly derived from dual‐frequency GNSS observations, but the
Marcel Iten, Shuyin Mao, Benedikt Soja
doaj +1 more source
Geomatics, Natural Hazards & Risk, 2017 The integration of Terrestrial Laser Scanning (TLS) and Structure from Motion and MultiView Stereo techniques allows to obtain comprehensive models of complex objects by using each technique in contexts presenting the optimal operating conditions, as ...
Isabel Martínez-Espejo Zaragoza +5 more
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Towards a Framework for Benchmarking Dense 3D Displacement Estimation Approaches for Geomonitoring Using Long-Range TLS Data [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesAccurate and spatially dense 3D displacement estimation can contribute to a better understanding of geomorphological processes, while long-range terrestrial laser scanning (LR-TLS) has emerged as a promising technique for generating such observations ...
N. Meyer, T. Medic, A. Wieser
doaj +1 more source
Learning Photogrammetry with Interactive Software Tool PhoX [PDF]
, 2016 Photogrammetry is a complex topic in high-level university teaching, especially in the fields of geodesy, geoinformatics and metrology where high quality results are demanded.
T. Luhmann
core +1 more source
Evaluating Repeatability of RTK GPS/GLONASS Near/Under Forest Environment
Croatian Journal of Forest Engineering, 2010 Until the mid-1990s, post-processing was the only method available to determine survey- grade positions using GPS. Anew method was then introduced called Real-Time Kinematic (RTK). Real Time Kinematic surveying is an advanced form of relative GPS carrier
Atinç Pirti +3 more
doaj