Results 81 to 90 of about 186,788 (382)

Python software tools for GNSS interferometric reflectometry (GNSS-IR)

GPS Solutions, 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. Soil moisture moni-toring is one of the most important applications of the GNSS-IR technique. This manuscript presents the main ideas
Martín Furones, Ángel Esteban, Luján García Muñoz, Raquel, Anquela Julián, Ana Belén   +2 more
openaire   +3 more sources

Exploration of Multi-Mission Spaceborne GNSS-R Raw IF Data Sets: Processing, Data Products and Potential Applications

Remote Sensing, 2022
Earth reflected Global Navigation Satellite System (GNSS) signals can be received by dedicated orbital receivers for remote sensing and Earth observation (EO) purposes. Different spaceborne missions have been launched during the past years, most of which
Weiqiang Li, E. Cardellach, S. Ribó, S. Oliveras, A. Rius   +4 more
semanticscholar   +1 more source

GNSS direction finding

Geodesy and Cartography, 2008
ISSN:1392 ...
openaire   +5 more sources

2D Semantic Segmentation: Recent Developments and Future Directions

Future Internet, 2023
Semantic segmentation is a critical task in computer vision that aims to assign each pixel in an image a corresponding label on the basis of its semantic content.
Yu Guo, Guigen Nie, Wenliang Gao, Mi Liao   +3 more
doaj   +1 more source

A GNSS/INS/LiDAR Integration Scheme for UAV-Based Navigation in GNSS-Challenging Environments

Italian National Conference on Sensors, 2022
Unmanned aerial vehicle (UAV) navigation has recently been the focus of many studies. The most challenging aspect of UAV navigation is maintaining accurate and reliable pose estimation.
Ahmed Elamin, N. Abdelaziz, A. El-Rabbany   +2 more
semanticscholar   +1 more source

Impacts of inter-satellite links on the ECOM model performance for BDS-3 MEO satellites

Satellite Navigation
Inter-satellite link (ISL) plays an essential role in current and future Global Navigation Satellite System (GNSS). In this study, we investigate the impact of ISL observations on precise orbit determination for BeiDou-3 Navigation Satellite System (BDS ...
Chao Yang, Jing Guo, Xiaolong Xu, Longyu Wang, Qile Zhao   +4 more
doaj   +1 more source

Characteristics of BD3 Global Service Satellites: POD, Open Service Signal and Atomic Clock Performance

Remote Sensing, 2019
The Chinese BeiDou Navigation Satellite System has provided a global-coverage service since 27 December 2018. Eighteen BD3 MEO satellites have been launched into space during 2017 and 2018.
Xiaolong Xu, Xilong Wang, Jingnan Liu, Qile Zhao   +3 more
doaj   +1 more source

Evaluation of Network RTK Positioning Performance Based on BDS-3 New Signal System

Remote Sensing, 2021
The BeiDou navigation satellite system (BDS-3) has been deployed and provides positioning, navigation, and timing (PNT) services for users all over the world.
Pengxu Wang, Hui Liu, Zhixin Yang, Bao Shu, Xintong Xu, Guigen Nie   +5 more
doaj   +1 more source

Development and Demonstration of a TDOA-Based GNSS Interference Signal Localization System [PDF]

, 2012
Background theory, a reference design, and demonstration results are given for a Global Navigation Satellite System (GNSS) interference localization system comprising a distributed radio-frequency sensor network that simultaneously locates multiple ...
Bhatti, Jahshan A., Humphreys, Todd E., Ledvina, Brent M.   +2 more
core   +1 more source

Nonlinear Regression-Based GNSS Multipath Modelling in Deep Urban Area

Mathematics, 2022
As the necessity of location information closely related to everyday life has increased, the use of global navigation satellite systems (GNSS) has gradually increased in populated urban areas.
Yong-Jo Lee, Byungwoon Park
semanticscholar   +1 more source