Optimal parameter inflation to enhance the availability of single-frequency GBAS for intelligent air transportation

H Lee, S Pullen, J Lee, B Park… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Ground-based Augmentation System (GBAS) augments Global Navigation Satellite Systems
(GNSS) to support the precision approach and landing of aircraft. To guarantee integrity …

Ionosphere variability I: Advances in observational, monitoring and detection capabilities

I Tsagouri, A Belehaki, DR Themens… - Advances in Space …, 2023 - Elsevier
The paper aims to review recent advances regarding the observational and monitoring
capabilities of the ionization conditions in the Earth's upper atmosphere. The analysis spans …

Strong ionospheric spatial gradient events induced by signal propagation paths aligned with equatorial plasma bubbles

BJ Affonso, A Moraes, J Sousasantos… - … on Aerospace and …, 2022 - ieeexplore.ieee.org
Low-latitude ionospheric behavior directly interferes with a wide range of applications
dependent on signals and information from satellites. The most severe and variable events …

Flight trial demonstration of secure GBAS via the l-band digital aeronautical communications system (LDACS)

N Mäurer, T Gräupl… - IEEE Aerospace and …, 2021 - ieeexplore.ieee.org
The ground-based augmentation system (GBAS) is the cornerstone for enabling automated
landings without the instrument landing system (ILS). Currently, GBAS is evolving to GBAS …

Estimation of spatial gradients and temporal variations of the total electron content using ground‐based GNSS measurements

N Jakowski, MM Hoque - Space Weather, 2019 - Wiley Online Library
Precision and safety of life applications of Global Navigation Satellite Systems require key
information on space weather conditions in particular on the perturbation degree of the …

Virtual reference station technology for voxels without signal ray in ionospheric tomography based on machine learning

D Zheng, P Yuan, C He, Y Yao, W Nie, D Lin, M Liao… - GPS Solutions, 2023 - Springer
A new three-dimensional computerized ionospheric tomography model (VRS-ML-CIT) was
developed in this study combining virtual reference station (VRS) and machine learning …

Total electron content observations by dense regional and worldwide international networks of GNSS

T Tsugawa, M Nishioka, M Ishii, K Hozumi… - Journal of Disaster …, 2018 - jstage.jst.go.jp
Two-dimensional ionospheric total electron content (TEC) maps have been derived from
ground-based Global Navigation Satellite System (GNSS) receiver networks and applied to …

Indoor navigation algorithm based on a smartphone inertial measurement unit and map matching

T Kang, Y Shin - 2021 International Conference on Information …, 2021 - ieeexplore.ieee.org
We propose an indoor navigation algorithm based on pedestrian dead reckoning (PDR)
using an inertial measurement unit in a smartphone and map matching. The proposed …

Modeling and analysis of an ionospheric map** function considering azimuth angle: A preliminary result

J Chen, X Ren, S **ong, X Zhang - Advances in Space Research, 2022 - Elsevier
Generally, dual-and multi-frequency global navigation satellite system (GNSS) users can
use dual-or multi-frequency combinations to eliminate the ionospheric delay. However …

Retrospect and prospect of ionospheric weather observed by FORMOSAT-3/COSMIC and FORMOSAT-7/COSMIC-2

TJY Liu, CCH Lin, CY Lin, IT Lee, YY Sun… - … and Oceanic Sciences, 2022 - Springer
Abstract FORMOSAT-3/COSMIC (F3/C) constellation of six micro-satellites was launched
into the circular low-earth orbit at 800 km altitude with a 72-degree inclination angle on 15 …