Results 51 to 60 of about 2,145,064 (260)
Remote Sensing, 2023 The delay caused by the troposphere is one of the major sources of errors limiting the accuracy of InSAR measurements. The tropospheric correction of InSAR measurements is important.
Qinghua Liu, Qiming Zeng, Zhiliang Zhang
doaj +1 more source
Improvement of BepiColombo's radio science experiment through an innovative Doppler noise reduction technique [PDF]
, 2018 The Mercury Orbiter Radio science Experiment (MORE), onboard the ESA/JAXA BepiColombo mission to Mercury, is designed to estimate Mercury’s gravity field, its rotational state, and to perform tests of relativistic gravity.
DI RUSCIO, ANDREA +3 more
core +1 more source
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
Estimation and Evaluation of Zenith Tropospheric Delay from Single and Multiple GNSS Observations
Remote Sensing, 2023 Multi-Global Navigation Satellite Systems (multi-GNSS) (including GPS, BDS, Galileo, and GLONASS) provide a significant opportunity for high-quality zenith tropospheric delay estimation and its applications in meteorology.
Sai Xia, Shuanggen Jin, Xuzhan Jin
semanticscholar +1 more source
Tropospheric phase delay in interferometric synthetic aperture radar estimated from meteorological model and multispectral imagery [PDF]
, 2007 ENVISAT Medium Resolution Imaging Spectrometer Instrument (MERIS) multispectral data and the mesoscale meteorological model MM5 are used to estimate the tropospheric phase delay in synthetic aperture radar (SAR) interferograms.
Avouac, Jean-Philippe +2 more
core +1 more source
Ray‐traced tropospheric delays in VLBI analysis
Radio Science, 2012 We develop a ray‐tracing package for the calculation of path delays of microwave signals in the troposphere based on numerical weather models which we use for the determination of the delays of geodetic Very Long Baseline Interferometry (VLBI) observations.
Nafisi, V. +4 more
openaire +4 more sources
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
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The Effects of Higher-Order Ionospheric Terms on GPS Tropospheric Delay and Gradient Estimates
Remote Sensing, 2018 Atmospheric delays, e.g., ionospheric delay and tropospheric delay, are the dominant error sources for the Global Navigation Satellite System (GNSS), especially for Precise Point Positioning (PPP).
Zhiyu Zhang, Fei Guo, Xiaohong Zhang
doaj +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
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Modeling wide-area tropospheric delay corrections for fast PPP ambiguity resolution
GPS Solutions, 2022 The performance of precise point positioning (PPP) has been significantly improved thanks to the continuous improvements in satellite orbit, clock, and ambiguity resolution (AR) technologies, but the convergence speed remains a limiting factor in real ...
Bobin Cui +4 more
semanticscholar +1 more source