Results 51 to 60 of about 733,426 (347)

Sequential Generation of Multi-GNSS Multi-Frequency PPP-RTK Products and Their Performance Using the EUREF Permanent GNSS Network

open access: yesRemote Sensing, 2023
In the classic Precise Point Positioning (PPP) approach, observations of Global Navigation Satellite Systems (GNSS) are processed at the network level to generate satellite clocks and positions.
Hans Daniel Platz
doaj   +1 more source

Geometric and Dynamic Application of Satellite Geodesy in Environmental Mapping: A Conceptual Review

open access: yesNigerian Journal of Environmental Sciences and Technology, 2019
The impacts of satellite geodesy are being felt in all aspects of human development and environmental management. Its principal advantages stem from the global nature of its scope, the diversity of its sensors and the realtime capabilities to capture ...
L. Hart, T. Oba, A. Babalola
semanticscholar   +1 more source

A new laser-ranged satellite for General Relativity and space geodesy: II. Monte Carlo simulations and covariance analyses of the LARES 2 experiment [PDF]

open access: yes, 2017
.In the previous paper we have introduced the LARES 2 space experiment. The LARES 2 laser-ranged satellite is planned for a launch in 2019 with the new VEGA C launch vehicle of the Italian Space Agency (ASI), ESA and ELV. The main objectives of the LARES
I. Ciufolini   +7 more
semanticscholar   +1 more source

The three Swedish kings of geodesy – Speech at the NKG General Assembly dinner in 2022

open access: yesJournal of Geodetic Science, 2023
During the 1950s–1970s, there were three geodesy professors in Sweden. Before and after that period the only such position was at KTH in Stockholm. One in the triple proposed the creation of the Nordic Geodetic Commission, which was realized in 1953 and ...
Sjöberg Lars E.
doaj   +1 more source

Validating Precise Orbit Determination from Satellite-Borne GPS Data of Haiyang-2D

open access: yesRemote Sensing, 2022
Haiyang-2D (HY-2D) is the fourth satellite in the marine dynamic satellite series established by China. It was successfully launched on 19 May 2021, marking the era of the 3-satellite network in the marine dynamic environment satellite series of China ...
Jinyun Guo   +6 more
doaj   +1 more source

Some thoughts on the use of InSAR data to constrain models of surface deformation: Noise structure and data downsampling [PDF]

open access: yes, 2005
Repeat-pass Interferometric Synthetic Aperture Radar (InSAR) provides spatially dense maps of surface deformation with potentially tens of millions of data points. Here we estimate the actual covariance structure of noise in InSAR data.
Lohman, Rowena B., Simons, Mark
core   +2 more sources

A Multifaceted Spatial Analysis of Tomb Distribution in Blemmyan Berenike (Eastern Desert of Egypt)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This study examines the spatial and visual organisation of tombs in the post–Roman Berenike located in Egypt's Eastern Desert. Archaeological surveys, remote sensing, geophysical methods, excavations and GIS‐based analyses are used for a comprehensive understanding of the spatial patterns and cultural significance behind the positions and ...
Mariusz Gwiazda   +4 more
wiley   +1 more source

Space Geodesy Data Implementation for Earth System Geodynamics Monitoring: A Case Study of the Aegean Microplate

open access: yesCivil and Environmental Engineering
The advances in geodesy that are continually occurring allow the science of investigating the Earth’s shape and size to be applied to the observation of its geodynamics as well. Space geodesy and remote sensing methods enable the desired phenomenon to be
Smrčková Daša   +4 more
doaj   +1 more source

Estimation of gravity noise variance and signal covariance parameters in least squares collocation with considering data resolution

open access: yesAnnals of Geophysics, 2016
The article describes an implementation of the negative log-likelihood function in the determination of uncorrelated noise standard deviation together with the parameters of spherical signal covariance model in least squares collocation (LSC) of gravity ...
Wojciech Jarmołowski
doaj   +1 more source

Performance Analysis of the First Korean Satellite Laser Ranging System [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2014
The first Korean satellite laser ranging (SLR) system, Daedeok SLR station (DAEK station) was developed by Korea Astronomy and Space Science Institute (KASI) in 2012, whose main objectives are space geodesy researches.
Man-Soo Choi   +18 more
doaj   +1 more source

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