[HTML][HTML] GNOS-II on Fengyun-3 satellite series: Exploration of multi-GNSS reflection signals for operational applications

Y Sun, F Huang, J Xia, C Yin, W Bai, Q Du, X Wang… - Remote Sensing, 2023 - mdpi.com
The Global Navigation Satellite System Occultation Sounder II (GNOS-II) payload onboard
the Chinese Fengyun-3E (FY-3E) satellite is the world's first operational spaceborne mission …

GNSS Reflectometry-Based Ocean Altimetry: State of the Art and Future Trends

T Xu, N Wang, Y He, Y Li, X Meng, F Gao… - Remote Sensing, 2024 - mdpi.com
For the past 20 years, Global Navigation Satellite System reflectometry (GNSS-R)
technology has successfully shown its potential for remote sensing of the Earth's surface …

Soil moisture retrieval from multi-GNSS reflectometry on FY-3E GNOS-II by land cover classification

C Yin, F Huang, J Xia, W Bai, Y Sun, G Yang, X Zhai… - Remote Sensing, 2023 - mdpi.com
The reflected GNSS signals at the L-band is significantly advantageous in soil moisture
monitoring as they are sensitive to the dielectric properties determined by the volumetric …

An illustration of FY-3E GNOS-R for global soil moisture monitoring

G Yang, X Du, L Huang, X Wu, L Sun, C Qi, X Zhang… - Sensors, 2023 - mdpi.com
An effective soil moisture retrieval method for FY-3E (Fengyun-3E) GNOS-R (GNSS
occultation sounder II-reflectometry) is developed in this paper. Here, the LAGRS model …

Assessing the Freeze/Thaw States in Arctic Circle Using FengYun-3E GNOS-R: An Initial Demonstration and Analysis

X Wu, X Ouyang, S Wu, F Wang… - IEEE Journal of Selected …, 2023 - ieeexplore.ieee.org
In this article, we present the first demonstration of the FengYun-3E (FY3E) Global
Navigation Satellite System Occultation Sounder II-Reflectometry (GNOS-R) payload's …

Integrating bi-temporal VHR optical and long-term SAR images for built-up area change detection

H Li, Q Jiang, L Liu, Q Shi, X Liu - International Journal of Digital …, 2024 - Taylor & Francis
With the rapid expansion of urbanization, it is imperative to monitor built-up areas changes
to promote the sustainable development of cities, aligning with the goals of Sustainable …

Safe Reinforcement Learning: Optimal Formation Control With Collision Avoidance of Multiple Satellite Systems

H Yu, L Dou, X Zhang, J Li… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This article addresses the collision avoidance and formation control problem for
multisatellite systems. A novel safe reinforcement learning (RL) algorithm based on an …

Retrieving ocean surface wind speeds in real time on spaceborne GNSS-R receivers: Algorithm and validation

T Qiu, Q Zheng, X Wang, F Huang, J Xia… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
Based on delay-Doppler maps (DDMs) in raw counts generated by spaceborne global
navigation satellite system reflectometry (GNSS-R) receivers, retrieving ocean surface wind …

Typhoon Maximum Sustained Wind Estimation Using Combined GNSS-Reflectometry and Scatterometer (CoGREAT): Initial Results from GNOS-R and WindRAD on …

X Wan, B Liu, Z Guo, Z Xia, T Zhang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Global Navigation Satellite System-Reflectometry (GNSS-R) is capable of typhoon wind
speed detection, benefiting from its unique feature of L-band forward-scattered signal with …

Estimating sea surface swell height using a hybrid model combining CNN, ConvLSTM, and FCN based on spaceborne GNSS-R data from the CYGNSS mission

J Bu, Q Wang, J Ni - GPS Solutions, 2024 - Springer
Compared to traditional swell height measurement methods, spaceborne global navigation
satellite system reflectometry (GNSS-R) has many advantages, including remote sensing …