Results 1 to 10 of about 1,078 (176)

Spatial Interpolation of GNSS Troposphere Wet Delay by a Newly Designed Artificial Neural Network Model

open access: yesApplied Sciences (Switzerland), 2019
Global Navigation Satellite System (GNSS) signals arrive at the Earth in a nonlinear and slightly curved way due to the refraction effect caused by the troposphere. The troposphere delay of the GNSS signal consists of hydrostatic and wet parts.
Mahmut Oğuz Selbesoğlu
exaly   +3 more sources

Performance Analysis of Troposphere Scattering Communication Channel with Chirp-BOK Modulation [PDF]

open access: yesEntropy
By utilizing chirp-BOK (binary orthogonal keying) modulation into a troposphere scattering communication system, a lower demodulation threshold can be achieved with excellent linear frequency modulation properties in a strong noise and weak signal ...
Junhu Shao   +3 more
doaj   +2 more sources

Use of Multi-Squint InSAR to Separate Surface Deformation From Troposphere Delay

open access: yesRemote Sensing
Tropospheric delays can be the leading source of error in spaceborne interferometric synthetic aperture radar (InSAR) measurements. Here, we find that the non-uniform troposphere delay features are dependent on the squint angles used for repeat-pass ...
Shadi Oveisgharan
exaly   +3 more sources

A Method to Reduce Non-Nominal Troposphere Error

open access: yesSensors, 2017
Under abnormal troposphere, Ground-Based Augmentation System (GBAS) is unable to eliminate troposphere delay, resulting in non-nominal troposphere error.
Zhipeng Wang, Shujing Wang
exaly   +3 more sources

Troposphere Delay Modeling in SLR Based on PMF, VMF3o, and Meteorological Data

open access: yesProgress in Earth and Planetary Science
Satellite laser ranging (SLR) requires accurate troposphere delay models to properly correct the observed distances to satellites and derive fundamental geodetic and geodynamic parameters.
Krzysztof Sośnica, Mateusz Drozdzewski
exaly   +2 more sources

Identifying Wet Troposphere Delay in L-Band InSAR Using Weather Radar Reflectivity

open access: yesEarth and Space Science
Synthetic Aperture Radar (SAR) pulses undergo variable propagation delays in the atmosphere due to changes in pressure, temperature, and humidity within the troposphere, causing large error in Interferometric SAR (InSAR) measurements of land surface ...
Cathleen E Jones   +2 more
exaly   +2 more sources

EXAMINATION OF DIFFERENT MODELS OF TROPOSPHERE DELAYS IN SBAS POSITIONING IN AERIAL NAVIGATION [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2023
This paper presents the results of a study on the use of different tropospheric correction models in SBAS positioning for air navigation. The paper, in particular, determines the influence of the Saastamoinen troposphere and RTCA-MOPS models on the ...
Kamil KRASUSKI   +1 more
doaj   +1 more source

A Two-step Estimation Method of Troposphere Delay with Consideration of Mapping Function Errors [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2020
Mapping function errors are usually not taken into consideration, when space geodetic data observed by VLBI, GNSS and some other techniques are utilized to estimate troposphere delay, which could, however, probably bring non-ignorable errors to solutions.
Haopeng FAN,Zhongmiao SUN,Liping ZHANG,Xiaogang LIU
doaj   +1 more source

An Interferometric Synthetic Aperture Radar Tropospheric Delay Correction Method Based on a Global Navigation Satellite System and a Backpropagation Neural Network: More Suitable for Areas with Obvious Terrain Changes

open access: yesSensors, 2023
Atmospheric delay correction remains a major challenge for interferometric synthetic aperture radar (InSAR) technology. In this paper, we first reviewed several commonly used methods for tropospheric delay correction in InSAR.
Liangcai Qiu   +5 more
doaj   +1 more source

Zenith Wet Delay (ZWD) Seasonal Correlation with Rainfall in Cikapundung River Discharge, North Bandung Region, Indonesia [PDF]

open access: yesE3S Web of Conferences, 2019
In a GPS survey study, the biases produced by the ionosphere and troposphere layers are known as ionospheric biases and troposphere bias. The distance deviation due to the slowing travel time of GPS signals in troposphere is commonly referred to as ...
Kuntjoro Wedyanto   +4 more
doaj   +1 more source

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