Results 41 to 50 of about 72,223 (218)

GNSS refractometry/reflectometry (GNSS-RR) raw data near Neumayer Station in 2021-2023

, 2023
GNSS refractometry/reflectometry (GNSS-RR) raw data (RINEX 3.02) including GPS, GLONASS, and GALILEO phase, code, and SNR observations. Measured automatically from a high-end GNSS system above (base) and one high-end and one low-cost antenna (rover ...
Schmithüsen, Holger, Steiner, Ladina, Eisen, Olaf   +2 more
core   +1 more source

“Cookie”: A Satellite Concept for GNSS Remote Sensing Constellations

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
This paper presents a concept, “Cookie,” for a satellite particularly suited for dense spatial sampling by future Global Navigation Satellite Systems (GNSS) remote sensing constellations.
Manuel Martin-Neira, Weiqiang Li, Ana Andres-Beivide, Xabier Ballesteros-Sels   +3 more
doaj   +1 more source

Monitoring of Coastal Subsidence Changes Based on GNSS Positioning and GNSS-IR [PDF]

Journal of Geodesy and Geoinformation Science, 2023
Coastal subsidence monitoring typically employs Global Navigation Satellite System (GNSS) positioning technology. This method provides information only about subsidence below the station base.
Xiaolei WANG, Zijin NIU, Xiufeng HE, Runchuan LI
doaj   +1 more source

Foreword to the Special Issue on GNSS Reflectometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
The papers in this special section focus on Global Navigation Satellie System reflectometry(GNSS-R) which is defined as the use of digital signals—here signals from Global Navigation Satellite Systems (GNSS)—as sources of illumination in a bistatic radar system.
Estel Cardellach, Sibylle Vey, Jens Wickert   +2 more
openaire   +3 more sources

Ionospheric Effects in GNSS-Reflectometry From Space [PDF]

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
Peer ...
Camps, Adriano, Park, Hyuk, Foti, Giuseppe, Gommenginger, Christine   +3 more
openaire   +6 more sources

Issues on Multi-polarization of GNSS-R for Passive Radar Detection

Leida xuebao, 2015
GNSS Reflectometry (GNSS-R) is a currently developed remote sensing technology which belongs to the passive radar domain. This paper aims to deal with some issues on multi-polarization of GNSS-R technology.
Wan Wei, Li Huang, Hong Yang
doaj   +1 more source

Remote Sensing of Forest Biomass Using GNSS Reflectometry [PDF]

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In this study, the capability of Global Navigation Satellite System Reflectometry in evaluating forest biomass from space has been investigated by using data coming from the TechDemoSat-1 (TDS-1) mission of Surrey Satellite Technology Ltd. and from the Cyclone Satellite System (CyGNSS) mission of NASA.
Emanuele Santi, Simonetta Paloscia, Simone Pettinato, Giacomo Fontanelli, Maria Paola Clarizia, Davide Comite, Laura Dente, Leila Guerriero, Nazzareno Pierdicca, Nicolas Floury   +9 more
openaire   +7 more sources

GNSS reflectometry for earth remote sensing

, 2020
Reflectometry is one of many new applications made possible by freely available global navigation satellite system (GNSS) signals. Reflectometry measurement geometry has some features that are significantly different from conventional radar or radiometry.
Kristine M. Larson, Zavorotny, Valery U., Larson, Kristine M., Nievinski, Felipe, Martin, Francisco, Ruffini, Giulio, James Garrison, Francisco Martin, Antonio Mollfulleda, Mollfulleda, Antonio, Giulio Ruffini, Garrison, James, Felipe Nievinski, Christine Gommenginger, Valery U. Zavorotny, Egido, Alejandro, Alejandro Egido, Gommenginger, Christine   +17 more
core   +1 more source

A novel quasi-open loop architecture for GNSS carrier recovery systems [PDF]

, 2012
The problem of designing robust systems to track global navigation satellite system (GNSS) signals in harsh environments has gained high attention. The classical closed loop architectures, such as phase locked loops, have been used for many years for ...
Letizia Lo Presti, Maurizio Fantino, Tahir, Muhammad, Lo Presti, Letizia, Fantino, Maurizio, Muhammad Tahir   +5 more
core   +1 more source

Modified GNSS-PIR and Initial Verifications From the Perspective of Altimetry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article proposed a modified structure of global navigation satellite system (GNSS) pseudointerferometric reflectometry (GNSS-PIR). The combination of the direct and reflected signals at the front end was modified as the combination of their coherent
Xuebao Hong, Yunlong Zhu, Jie Li, Pengyu Yang, Dongkai Yang   +4 more
doaj   +1 more source