A systematic review of machine learning techniques for GNSS use cases

A Siemuri, K Selvan, H Kuusniemi… - … on Aerospace and …, 2022 - ieeexplore.ieee.org
In terms of the availability and accuracy of positioning, navigation, and timing (PNT), the
traditional Global Navigation Satellite System (GNSS) algorithms and models perform well …

Neural network-based models for estimating weighted mean temperature in China and adjacent areas

F Long, W Hu, Y Dong, J Wang - Atmosphere, 2021 - mdpi.com
The weighted mean temperature (T m) is a key parameter when converting the zenith wet
delay (ZWD) to precipitation water vapor (PWV) in ground-based Global Navigation Satellite …

Modeling tropospheric zenith wet delays in the Chinese mainland based on machine learning

Q Li, L Yuan, Z Jiang - GPS Solutions, 2023 - Springer
In this study, the tropospheric zenith wet delay (ZWD) modeling was realized based on the
regression analysis of 7 years (2013–2019) of radiosonde data at 182 sites in the Chinese …

Supervised detection of ionospheric scintillation in low-latitude radio occultation measurements

V Ludwig-Barbosa, T Sievert, A Carlström… - Remote Sensing, 2021 - mdpi.com
Global Navigation Satellite System (GNSS) Radio Occultation (RO) has provided high-
quality atmospheric data assimilated in Numerical Weather Prediction (NWP) models and …

Enhanced neural network model for worldwide estimation of weighted mean temperature

F Long, C Gao, Y Yan, J Wang - Remote Sensing, 2021 - mdpi.com
Precise modeling of weighted mean temperature (T m) is critical for realizing real-time
conversion from zenith wet delay (ZWD) to precipitation water vapor (PWV) in Global …

Validation of COSMIC-2-derived ionospheric peak parameters using measurements of ionosondes

S Shi, W Li, K Zhang, S Wu, J Shi, F Song, P Sun - Remote Sensing, 2021 - mdpi.com
Although numerous validations for the ionospheric peak parameters values (IPPVs)
obtained from the Constellation Observing System for Meteorology, Ionosphere, and Climate …

Using a sliding window phase matching method for imaging of GNSS radio occultation signals

T Sievert, J Rasch, A Carlström, V Ludwig Barbosa… - Remote Sensing, 2021 - mdpi.com
Global Navigation Satellite System Radio Occultation (GNSS-RO) is a technique used to
sound the atmosphere and derive vertical profiles of refractivity. Signals from GNSS …

[PDF][PDF] Precise thermospheric mass density modelling for orbit prediction of low earth orbiters

C He - 2019 - core.ac.uk
The number of artificial space objects near the Earth has increased from only one–the first
artificial satellite, Sputnik I–to millions by 2015. Most of these space objects are space debris …

GNSS Radio Occultation Inversion Methods and Reflection Observations in the Lower Troposphere

T Sievert - 2019 - diva-portal.org
Abstract GNSS Radio Occultation (GNSS-RO) is an opportunistic Earth sensing technique
where GNSS signals passing through the atmosphere are received in low Earth orbit and …

Comparing reflection signatures in radio occultation measurements using the full spectrum inversion and phase matching methods

T Sievert, J Rasch, A Carlström… - Remote sensing of …, 2018 - spiedigitallibrary.org
Global Navigation Satellite System radio occultation (GNSS-RO) is an important technique
used to sound the Earth's atmosphere and provide data products to numerical weather …