Results 1 to 10 of about 740 (180)

Estimating Wave Direction Using Terrestrial GNSS Reflectometry [PDF]

Remote Sensing, 2019
The signal-to-noise ratio (SNR) data are part of the global navigation satellite systems (GNSS) observables. In a marine environment, the oscillation of the SNR data can be used to derive reflector heights. Since the attenuation of the SNR oscillation is
, Gilad Even-Tzur, Ole Roggenbuck
exaly   +4 more sources

Spaceborne GNSS Reflectometry

Remote Sensing, 2022
This article presents a review on spaceborne Global Navigation Satellite System Reflectometry (GNSS-R), which is an important part of GNSS-R technology and has attracted great attention from academia, industry and government agencies in recent years ...
Kegen Yu, Shuai Han, Jinwei Bu, Yuhang An, Zhewen Zhou, Changyang Wang, Sajad Tabibi, Joon Wayn Cheong   +7 more
doaj   +3 more sources

An Illustration of FY-3E GNOS-R for Global Soil Moisture Monitoring [PDF]

Sensors, 2023
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, which is totally oriented for GNOS-R, is employed to estimate vegetation and surface ...
Guanglin Yang, Xiaoyong Du, Lingyong Huang, Xuerui Wu, Ling Sun, Chengli Qi, Xiaoxin Zhang, Jinsong Wang, Shaohui Song   +8 more
doaj   +2 more sources

Advances in GNSS Positioning and GNSS Remote Sensing [PDF]

Sensors
Scientists and engineers use data utilize global navigation satellite systems (GNSSs) for a multitude of tasks: autonomous navigation, transport monitoring, construction, GNSS reflectometry, GNSS ionosphere monitoring, etc [...]
Yury V. Yasyukevich, Baocheng Zhang, Venkata Ratnam Devanaboyina   +2 more
doaj   +2 more sources

Space-Borne GNSS-R Ionospheric Delay Error Elimination by Optimal Spatial Filtering [PDF]

Sensors, 2020
Global Navigation Satellite System Reflectometry (GNSS-R) technology is a new and promising remote sensing technology, especially satellite-based GNSS-R remote sensing, which has broad application prospects. In this work, the ionospheric impacts on space-
Qiuyang Zhang, Yang Liu, Junming Xia
doaj   +2 more sources

Polarimetric instrument Global Navigation Satellite System - Reflectometry airborne data [PDF]

Data in Brief
In this paper, three datasets are described. The first dataset is a complete set of GNSS-R (GNSS-R: Global Navigation Satellite System – Reflectometry) airborne data.
Karin Dassas, Pascal Fanise, Michel Le Page, Emna Ayari, Philippe Baillion, Mateo Sige, Aaron Boone, Mehrez Zribi   +7 more
doaj   +2 more sources

Lake Altimetry Using Long Coherent Integration Carrier Phase Measurements from Airborne GNSS Reflectometry

Remote Sensing, 2023
Today, land and ocean observations are crucial for monitoring climate change. The method of GNSS reflectometry is an opportunistic way to provide low-cost observations of many geophysical parameters.
Nolan Varais, Jérôme Verdun, José Cali, Laurent Lestarquit   +3 more
doaj   +1 more source

Inversion Method of Tidal Level Based on GNSS Triple-Frequency, Geometry-Free, Non-Ionospheric Phase Combination

Applied Sciences, 2022
Using the navigation signal transmitted by GNSS (global navigation satellite system), satellites for tide level monitoring comprise one of the important research fields of GNSS marine remote sensing.
Gaochong You, Hang Guo, Jianfeng Wu, Min Yu   +3 more
doaj   +1 more source

Snow Depth Measurements by GNSS-IR at an Automatic Weather Station, NUK-K

Remote Sensing, 2022
Studies have shown that geodetic Global Navigation Satellite System (GNSS) stations can be used to measure snow depths using GNSS interferometric reflectometry (GNSS-IR).
Trine S. Dahl-Jensen, Michele Citterio, Jakob Jakobsen, Andreas P. Ahlstrøm, Kristine M. Larson, Shfaqat A. Khan   +5 more
doaj   +1 more source

GNSS-R monitoring of soil moisture dynamics in areas of severe drought: example of Dahra in the Sahelian climatic zone (Senegal)

European Journal of Remote Sensing, 2022
With population growth, water will increase in the following decades tremendously. The optimization of water allocation for agriculture requires accurate soil moisture (SM) monitoring.
Minh-Cuong Ha, José Darrozes, Muriel Llubes, Manuela Grippa, Guillaume Ramillien, Frédéric Frappart, Frédéric Baup, Håkan Torbern Tagesson, Eric Mougin, Idrissa Guiro, Laurent Kergoat, Huu Duy Nguyen, Lucia Seoane, Gregory Dufrechou, Phuong-Lan Vu   +14 more
doaj   +1 more source