Results 11 to 20 of about 711,710 (171)

Analysis on the performances of the GNSS tropospheric delay correction models [PDF]

E3S Web of Conferences, 2022
Tropospheric delay is one of the important factors affecting GNSS positioning accuracy, and there are different ways to deal with the multiple measurement situations.
Liu Jiaxi, Chang Zhanqiang, Zheng Haoxin
doaj   +3 more sources

Tropospheric Delay Model Based on VMF and ERA5 Reanalysis Data

Applied Sciences, 2023
The global tropospheric zenith delay grid products of VMF1 and VMF3 (Vienna mapping functions) with different resolutions are used to calculate the tropospheric zenith delay of eight IGS (International GNSS Service) stations in China, and the accuracy of
Mengtao Zhang, Mengli Wang, Hang Guo, Junjun Hu, Jian Xiong   +4 more
doaj   +2 more sources

Effects of the High-Order Ionospheric Delay on GPS-Based Tropospheric Parameter Estimations in Turkey

Remote Sensing, 2020
The tropospheric delay and gradients can be estimated using Global Positioning System (GPS) observations after removing the ionospheric delay, which has been widely used for atmospheric studies and forecasting.
Volkan Akgul, Gokhan Gurbuz, Senol Hakan Kutoglu, Shuanggen Jin   +3 more
doaj   +2 more sources

THE EFFECT OF SEASONAL VARIATION ON GNSS ZENITH TROPOSPHERIC DELAY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The 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   +3 more sources

Regional Tropospheric Correction Model from GNSS–Saastamoinen–GPT2w Data for Zhejiang Province

Atmosphere, 2023
Tropospheric delay models based on GNSS observations are essential for studying tropospheric changes. However, the uneven distribution of GNSS stations reduces the accuracy of GNSS tropospheric delay models in remote areas.
Chaoqian Xu, Yiqun Zhu, Xingyu Xu, Jian Kong, Yibin Yao, Junbo Shi, Xiulong Li   +6 more
doaj   +1 more source

Multi-temporal InSAR tropospheric delay modelling using Tikhonov regularization for Sentinel-1 C-band data

ISPRS Open Journal of Photogrammetry and Remote Sensing, 2022
The increased availability of satellite SAR data coupled with improved InSAR processing algorithms has led to higher accuracy of InSAR-derived displacements.
Pius Kipngetich Kirui, Björn Riedel, Markus Gerke   +2 more
doaj   +1 more source

Empirical Orthogonal Function Analysis and Modeling of Global Tropospheric Delay Spherical Harmonic Coefficients

Remote Sensing, 2021
Based on the ERA-5 meteorological data from 2015 to 2019, we establish the global tropospheric delay spherical harmonic (SH) coefficients set called the SH_set and develop the global tropospheric delay SH coefficients empirical model called EGtrop using ...
Yongchao Ma, Hang Liu, Guochang Xu, Zhiping Lu   +3 more
doaj   +1 more source

Adaptive Fusion of Multi-Source Tropospheric Delay Estimates for InSAR Deformation Measurements

Frontiers in Environmental Science, 2022
Atmospheric propagation delay correction is the key to improving the accuracy of deformation measurement of satellite interferometric synthetic aperture radar (InSAR).
Li Zhang, Jie Dong, Lu Zhang, Yian Wang, Wei Tang, Mingsheng Liao   +5 more
doaj   +1 more source

Tropospheric delay mapping function vertical models parameters

, 2023
This dataset is the parameter data for the tropospheric delay mapping function (MF) vertical models, from which the user can obtain the model MFs for the overhead regions.
Junsheng Ding (17659665)
core   +1 more source

Establishment of a Real-Time Local Tropospheric Fusion Model

Remote Sensing, 2019
The tropospheric delay is one major error source affecting the precise positioning provided by the global navigation satellite system (GNSS). This error occurs because the GNSS signals are refracted while travelling through the troposphere layer ...
Yibin Yao, Xingyu Xu, Chaoqian Xu, Wenjie Peng, Yangyang Wan   +4 more
doaj   +1 more source