Results 31 to 40 of about 1,619 (201)
Sensors, 2016 An empirical tropospheric delay model, together with a mapping function, is commonly used to correct the tropospheric errors in global navigation satellite system (GNSS) processing.
Miaomiao Wang, Bofeng Li
doaj +1 more source
Earth and Space Science, 2020 Tropospheric delay error is independent of the signal's frequency and has strong spatiotemporal variation. It is one of the most severe error sources of satellite navigation and spatial measurement. In view of the limitation of global zenith tropospheric
Peng Chen +3 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
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
Evaluation of InSAR Tropospheric Delay Correction Methods in a Low-Latitude Alpine Canyon Region
Remote Sensing, 2023 Tropospheric delay error must be reduced during interferometric synthetic aperture radar (InSAR) measurement. Depending on different geographical environments, an appropriate correction method should be selected to improve the accuracy of InSAR ...
Yanxi Zhao +5 more
doaj +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
Determination of Tropospheric Parameters from ERA Surface Data for Space Geodetic Techniques
Remote Sensing, 2021 This study investigates methods of deriving meteorological parameters needed in space geodetic applications, from the surface data of the numerical weather model (NWM).
Wei Li, Yujin He
doaj +1 more source
THE EFFECT OF SEASONAL VARIATION ON GNSS ZENITH TROPOSPHERIC DELAY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe Global Navigation Satellite System (GNSS) signal experiences delays caused by the atmosphere, leading to the lengthening of the geometric path of the ray, commonly referred to as tropospheric delay. This delay is a significant source of error in GNSS
N. Tekin Ünlütürk, U. Doğan
doaj +1 more source
Estimation of GNSS tropospheric products and their meteorological exploitation in Slovakia
Contributions to Geophysics and Geodesy, 2020 This paper discusses the in near–real time processing of Global Navigation Satellite System observations at the Department of Theoretical Geodesy at the Slovak University of Technology in Bratislava.
Martin Imrišek +2 more
doaj +1 more source
Estimating Zenith Tropospheric Delays from BeiDou Navigation Satellite System Observations [PDF]
Sensors, 2013 The GNSS derived Zenith Tropospheric Delay (ZTD) plays today a very critical role in meteorological study and weather forecasts, as ZTDs of thousands of GNSS stations are operationally assimilated into numerical weather prediction models. Recently, the Chinese BeiDou Navigation Satellite System (BDS) was officially announced to provide operational ...
Xu, A. +5 more
openaire +6 more sources