Results 41 to 50 of about 78,703 (214)

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

Dynamic Dual Polarized GNSS Reflectometry Using UAV [PDF]

, 2021
In this paper, GNSS-Reflectometry is performed using Unmanned Aerial Vehicle (UAV). Received GNSS multipath signal is utilized to perform environment remote sensing in dynamic and static flight modes. Right-Hand Circular Polarized (RHCP) multipath signal
Markus Berg, Aarno Parssinen, Hänninen, Tuomo, Marko E. Leinonen, Regmi, Ankit, Leinonen, Marko E., Berg, Markus, Pärssinen, Aarno, Tuomo Hanninen, Ankit Regmi   +9 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

Monitoring Sea Ice Thickness Using GNSS-Interferometric Reflectometry [PDF]

, 2022
This letter presents the analysis of frozen sea surface properties using low-cost and low-complexity terrestrial global navigation satellite system (GNSS) receivers.
Markus Berg, Aarno Parssinen, Marko E. Leinonen, Regmi, Ankit, Leinonen, Marko E., Berg, Markus, Pärssinen, Aarno, Ankit Regmi   +7 more
core   +1 more source

Atmospheric effects resolved in coherent airborne GNSS reflectometry [PDF]

, 2022
The advent of the Global Satellite Navigation Systems (GNSS) allowed the emergence of multiple satellites, airborne and terrestrial systems for remote sensing, and Earth observation.
Dalil, Wafa, Hoque, Mohammed Mainul, Reboul, Serge, Moreno, Mario, Stienne, Georges, Wickert, Jens, Semmling, Maximilian   +6 more
core  

Python software tools for GNSS interferometric reflectometry (GNSS-IR) [PDF]

, 2020
[EN] Global Navigation Satellite System (GNSS) interferometric reflectometry, also known as the GNSS-IR, uses data from geodetic-quality GNSS antennas to extract information about the environment surrounding the antenna.
Martín Furones, Ángel Esteban, Luján García Muñoz, Raquel, Anquela Julián, Ana Belén, Raquel Luján, Angel Martín, Ana Belén Anquela   +5 more
core   +1 more source

Diffusion‐Based Reconstruction of Western North Pacific Surface Winds From CYGNSS for Tropical Cyclone Analysis

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 10, October 2026.
Abstract Sea surface wind retrieval under extreme weather conditions is constrained by the sparse and irregular spatiotemporal sampling of Global Navigation Satellite System Reflectometry (GNSS‐R). This study presents a probabilistic wind field reconstruction framework for the Western North Pacific using Score‐Based Data Assimilation (SDA). A diffusion
Xinhai Han, Xiaohui Li, Jingsong Yang, Zeyi Niu, Guoqi Han, Naifeng Fu, Jiuke Wang, Wei Tao, Lotfi Aouf, Dake Chen   +9 more
wiley   +1 more source

Dual circularly polarized GNSS-reflectometry for remote sensing of land and sea surfaces [PDF]

Remote sensing of the environment is of utmost importance to better understand the effects of climate change. The utilization of Global Navigation Satellite System (GNSS) signals reflected from different Earth surfaces allows the investigation of ...
Regmi, Ankit
core   +1 more source

Low-Cost GNSS-R Altimetry on a UAV for Water-Level Measurements at Arbitrary Times and Locations

Sensors, 2019
Together with direct Global Navigation Satellite System (GNSS) signals, the signals reflected at the water surface can be received by an unmanned aerial vehicle (UAV).
Kaoru Ichikawa, Takuji Ebinuma, Masanori Konda, Kei Yufu   +3 more
doaj   +1 more source

Comparison and Synergy of BPSK and BOC Modulations in GNSS Reflectometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Signals from global navigation satellite systems (GNSSs) have been advocated as opportunities for remote sensing of the Earth. In the multi-GNSS era, signals from different constellation, at different frequency, and under different modulation are ...
Jyh-Ching Juang, Chen-Tsung Lin, Yung-Fu Tsai   +2 more
doaj   +1 more source