Results 21 to 30 of about 711,710 (171)

Modified Interpolation Method of Multi-Reference Station Tropospheric Delay Considering the Influence of Height Difference

open access: yesRemote Sensing, 2021
In network real-time kinematic (NRTK) positioning, atmospheric delay information is critical for generating virtual observations at a virtual reference station (VRS).
Yakun Pu, Min Song, Yunbin Yuan
doaj   +1 more source

Evaluation of InSAR Tropospheric Correction by Using Efficient WRF Simulation with ERA5 for Initialization

open access: yesRemote 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

USING GENERATIVE ADVERSARIAL NETWORKS FOR EXTRACTION OF INSAR SIGNALS FROM LARGE-SCALE SENTINEL-1 INTERFEROGRAMS BY IMPROVING TROPOSPHERIC NOISE CORRECTION [PDF]

open access: yesISPRS 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

Comparison of tropospheric delay correction methods for InSAR analysis using a mesoscale meteorological model: a case study from Japan

open access: yesEarth, Planets and Space, 2023
A major source of error in interferometric synthetic aperture radar (InSAR), used for mapping ground deformation, is the delay caused by changes in the propagation velocity of radar microwaves in the troposphere.
Sardila Nurulhikmah Sailellah   +1 more
doaj   +1 more source

Performance Evaluation of Blind Tropospheric Delay correction Models over Africa [PDF]

open access: yes, 2015
Tropospheric delay is a major error source in positioning by Global Navigation Satellite Systems (GNSS). Many techniques are available for tropospheric delay mitigation consisting of surface meteorological  models and global empirical models.
Combrinck, Ludwig   +2 more
core   +1 more source

Clouds, photolysis and regional tropospheric ozone budgets. [PDF]

open access: yes, 2009
We use a three-dimensional chemical transport model to examine the shortwave radiative effects of clouds on the tropospheric ozone budget. In addition to looking at changes in global concentrations as previous studies have done, we examine changes in ...
Wild, Oliver   +4 more
core   +4 more sources

Improvement and Comparison of Multi-Reference Station Regional Tropospheric Delay Modeling Method Considering the Effect of Height Difference

open access: yesAtmosphere, 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

The effect of UNBabc mapping function modification to GPS tropospheric delay [PDF]

open access: yes, 2008
Tropospheric delay refers to the refraction of the Global Positioning System (GPS) signal as it passes through the neutral atmosphere from the satellite to the earth, which causes longer distance traveled by the signal.
Sakidin, Hamzah   +6 more
core   +2 more sources

Transformation of Neill Mapping Function For GPS Tropospheric Delay [PDF]

open access: yes, 2012
The refraction of the Global Positioning System (GPS) signal as it passes through the neutral atmosphere from the satellite to the earth can be referred as GPS tropospheric delay, which causes longer distance traveled by the signal.
Hamzah , Sakidin, Tay, Choo Chuan
core   +1 more source

Transformation of Neill Mapping Function For GPS Tropospheric Delay [PDF]

open access: yes, 2011
The refraction of the Global Positioning System (GPS) signal as it passes through the neutral atmosphere from the satellite to the earth can be referred as GPS tropospheric delay, which causes longer distance traveled by the signal.
Sakidin, Hamzah, Tay, Choo Chuan
core   +1 more source

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