Results 61 to 70 of about 2,145,064 (260)
Development and evaluation of the refined zenith tropospheric delay (ZTD) models
Satellite Navigation, 2021 The tropospheric delay is a significant error source in Global Navigation Satellite System (GNSS) positioning and navigation. It is usually projected into zenith direction by using a mapping function.
Fei Yang +4 more
semanticscholar +1 more source
A Dense Reference Network for Mass-Market Centimeter-Accurate Positioning [PDF]
, 2016 The quality of atmospheric corrections provided by a dense reference network for centimeter-accurate carrierphase differential GNSS (CDGNSS) positioning is investigated.
Gonzalez, Collin W. +3 more
core +1 more source
Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]
, 2019 ©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong +8 more
core +1 more source
Geodesy and Cartography, 2014 The tropospheric delay still remains a limiting factor to the accuracy of space based positioning techniques. The estimation of station positioning, especially height component, which is particularly important for more applications is susceptible to ...
Sobhy Abdel Monem Younes +1 more
doaj +1 more source
REAL-TIME TROPOSPHERIC PRODUCT ESTABLISHMENT AND ACCURACY ASSESSMENT IN CHINA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Tropospheric delay has always been an important issue in Global Navigation Satellite System (GNSS) processing. Empirical tropospheric delay models are difficult to simulate complex and volatile atmospheric environments, resulting in poor accuracy of the ...
M. Chen +9 more
doaj +1 more source
Development of a High-Resolution Tropospheric Delay Model Integrating GNSS ZTD and ERA5 Reanalysis
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingTropospheric delay is a key metric in weather monitoring and represents one of the primary error sources in precise positioning. Advances in Global Navigation Satellite System (GNSS) and numerical weather models (NWM) present significant potential for ...
Cuixian Lu +4 more
semanticscholar +1 more source
Assessment of GNSS PPP-Based Zenith Tropospheric Delay [PDF]
Artificial Satellites, 2020 Abstract This study assesses the precision of zenith tropospheric delay (ZTD) obtained through triple-constellation global navigation satellite system (GNSS) precise point positioning (PPP). Various ZTD estimates are obtained as by-products from GPS-only, GPS/Galileo, GPS/BeiDou, and triple-constellation GPS/Galileo/BeiDou PPP solutions.
Mohamed Abdelazeem, Ahmed El-Rabbany
openaire +1 more source
Deep Neural Networks for Refining Vertical Modeling of Global Tropospheric Delay
Geophysical Research LettersKinematic airborne platforms are becoming increasingly vital for Earth observation. They highlight the critical need for accurate tropospheric delay corrections across varying altitudes, especially as most existing models are limited to Earth's surface ...
Peng Yuan +9 more
semanticscholar +1 more source
Earth and Space Science, 2021 Precipitable water vapor (PWV) from numerical weather models, such as the latest generation of European Centre for Medium‐Range Weather Forecasts (ECMWF) reanalysis (ERA5) and the ECMWF High RESolution (HRES) models, are important to meteorological ...
Chen Yu, Zhenhong Li, G. Blewitt
semanticscholar +1 more source
Estimating integrated water vapor trends from VLBI, GPS,and numerical weather models: sensitivity totropospheric parameterization [PDF]
, 2018 ©2018. American Geophysical UnionIn this study, we estimate integrated water vapor (IWV) trends from very long baseline interferometry (VLBI) and global navigation satellite systems (GNSS) data analysis, as well as from numerical weather models (NWMs ...
Balidakis, Kyriakos +6 more
core +1 more source