Results 31 to 40 of about 3,196 (215)
USING GENERATIVE ADVERSARIAL NETWORKS FOR EXTRACTION OF INSAR SIGNALS FROM LARGE-SCALE SENTINEL-1 INTERFEROGRAMS BY IMPROVING TROPOSPHERIC NOISE CORRECTION [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Spatiotemporal variations of pressure, temperature, water vapour content in the atmosphere lead to significant delays in interferometric synthetic aperture radar (InSAR) measurements of deformations in the ground.
B. Ghosh +4 more
doaj +1 more source
Tropospheric Delay Estimation for Pseudolite Positioning [PDF]
Journal of Global Positioning Systems, 2005 Pseudolites, ground-based GPS signal transmitters, can significantly enhance the GPS satellite geometry or can even be an independent positioning system. However, as pseudolites are very close to the receivers, error effects are different from the traditional GPS and should be considered and modeled in a different way.
Jianguo Jack Wang +4 more
openaire +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
Atmosphere, 2022 Tropospheric delay information is particularly important for network RTK (Network Real-time Kinematic) positioning. Conventionally, tropospheric delay information at a virtual reference station (VRS) is obtained using the linear interpolation method (LIM)
Yifan Wang +4 more
doaj +1 more source
Indonesian Journal of Geography, 2022 Long-term InSAR-based observations are prone to atmospheric delay interference. The active-phase signals emitted and recorded back by sensors during imaging are easily disturbed by the electron content in the ionospheric layer and the water vapor content
Hidayat Panuntun +3 more
doaj +1 more source
A model for converging tropospheric delay corrections
Highlights in Science, Engineering and Technology, 2023 In response to the current problem that tropo-spheric delay correction is constrained by the measured meteorological parameters, resulting in low efficiency and limited application, this paper proposes a GE-Sa fusion model combining GPT2w and EGNOS models.
Ling Ling, Chenglin Cai
openaire +1 more source
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
Estimating Zenith Tropospheric Delay Based on GPT2w Model [PDF]
IEEE Access, 2019 To precisely and conveniently estimate zenith tropospheric delay (ZTD), troposphere refractivity is deduced through global pressure and temperature 2w (GPT2w) model and surface meteorology devices, ZTD is estimated based on integration of refractivity in the zenith direction. When surface meteorological measurements are absent, all parameters including
Zan Liu, Xihong Chen, Qiang Liu 0001
openaire +2 more sources
Tropospheric wet path-delay measurements [PDF]
IEEE Transactions on Antennas and Propagation, 1982 A dual-channel microwave radiometer measuring the sky brightness temperature at the frequencies 21.0 and 31.4 GHz, an infrared spectral hygrometer (IRSH) measuring the ratio of the radiation from the sun at the wavelengths 931 and 880 nm, and radiosondes have been used simultaneously to determine the excess path length due to water vapor (wet path ...
openaire +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