A Machine Learning-Based Method for Wind Fields Forecasting Utilizing GNSS Radio Occultation Data
IEEE Access, 2022 With the development of computer technology and expanding environmental issues, machine learning has received more and more attention in the field of weather forecasting.
Xuezhao Chu +5 more
doaj +1 more source
Supervised Detection of Ionospheric Scintillation in Low-Latitude Radio Occultation Measurements
Remote Sensing, 2021 Global Navigation Satellite System (GNSS) Radio Occultation (RO) has provided high-quality atmospheric data assimilated in Numerical Weather Prediction (NWP) models and climatology studies for more than 20 years.
Vinícius Ludwig-Barbosa +5 more
doaj +1 more source
The Impact of Road Configuration on V2V-based Cooperative Localization
, 2017 Cooperative localization with map matching has been shown to reduce Global Navigation Satellite System (GNSS) localization error from several meters to sub-meter level by fusing the GNSS measurements of four vehicles in our previous work.
Shen, Macheng, Sun, Jing, Zhao, Ding
core +1 more source
The GPS Assimilator: a Method for Upgrading Existing GPS User Equipment to Improve Accuracy, Robustness, and Resistance to Spoofing [PDF]
, 2010 Preprint of the 2010 ION GNSS Conference Portland, OR, September 21–24, 2010A conceptual method is presented for upgrading existing GPS user equipment, without requiring hardware or software modifications to the equipment, to improve the equipment’s ...
Bhatti, Jahshan +2 more
core +2 more sources
Generating Compact Geometric Track-Maps for Train Positioning Applications
, 2019 In this paper, we present a method to generate compact geometric track-maps for train-borne localization applications. Therefore, we first give a brief overview on the purpose of track maps in train-positioning applications.
Adamy, Jürgen +3 more
core +1 more source
Orographic and convective gravity waves above the Alps and Andes mountains during GPS radio occultation events – a case study [PDF]
, 2017 The significant distortions introduced in the measured atmospheric gravity wavelengths by soundings other than in vertical and horizontal directions, are discussed as a function of elevation angle of the sounding path and the gravity waves aspect ratio ...
Alexander, Pedro Manfredo +5 more
core +1 more source
Remote SensingGlobal Navigation Satellite System (GNSS) Radio Occultation (RO) and GNSS Reflectometry (GNSS-R) are the two major spaceborne GNSS remote sensing (GNSS-RS) techniques, providing observations of atmospheric profiles and the Earth’s surface. With the rapid
Weihua Bai +11 more
doaj +1 more source
Stratospheric gravity waves in a post-limb sounder era: can GNSS-RO be used to extend the SABER QBO-driving record? [PDF]
Atmospheric Measurement TechniquesThe quasi-biennial oscillation (QBO) is a slowly repeating cycle of winds which dominates tropical lower-stratospheric dynamics and has been described as the “heartbeat of the stratosphere”. However, it is challenging to represent in weather and climate
M. Almowafy +3 more
doaj +1 more source
Correcting negatively biased refractivity below ducts in GNSS radio occultation: an optimal estimation approach towards improving planetary boundary layer (PBL) characterization [PDF]
Atmospheric Measurement Techniques, 2017 Global Navigation Satellite System (GNSS) radio occultation (RO) measurements are promising in sensing the vertical structure of the Earth's planetary boundary layer (PBL).
K.-N. Wang +3 more
doaj +1 more source
Assessment of GRAS Ionospheric Measurements for Ionospheric Model Assimilation
Remote Sensing, 2023 We conducted a study to assess the GNSS (Global Navigation Satellite System) Receiver for Atmospheric Sounding (GRAS) ionospheric data quality by processing Radio Occultation (RO) observations of ionospheric products.
M. M. Hoque +8 more
doaj +1 more source