Results 51 to 60 of about 37,148,855 (157)

Interferometric Synthetic Aperture Radar (InSAR) for Monitoring Seasonal Snow

open access: yesWater Resources Research, Volume 62, Issue 9, September 2026.
Abstract Interferometric Synthetic Aperture Radar (InSAR) offers a potential pathway for measuring seasonal snow water equivalent (SWE) and snow depth at spatial and temporal scales needed for basin‐scale hydrology. First proposed for seasonal snow more than 25 years ago, InSAR uses repeat‐pass radar phase differences to estimate changes in SWE or ...
Jack Tarricone   +17 more
wiley   +1 more source

NIGCOMSAT-1R Satellite-Based Augmentation System(SBAS) test bed trial

open access: yes, 2020
In October, 2016 China Great Wall Industry Corporation and Spacestar Technology Company Ltd of China entered into cooperative agreement with Nigerian Communications Satellite Ltd on a Satellite-Based Augmentation System (SBAS) performance test and ...
Lasisi Salami Lawal (16038599)   +2 more
core  

Modernization of GNSS, RNSS, and SBAS

open access: yesTechnologies
This review provides an extensive overview of the modernization of Global Navigation Satellite System (GNSS), Regional Navigation Satellite System (RNSS), and Satellite-Based Augmentation System (SBAS) up to 28 September 2025.
Krunoslav Špoljar   +3 more
doaj   +1 more source

An Ionospheric Storm Scale Index Based on TEC: Comparative Analysis for China Region

open access: yesSpace Weather, Volume 24, Issue 8, August 2026.
Abstract Defining a standardized ionospheric storm scale is challenging given the ionosphere's inherent complexity and susceptibility to multiple driving factors. In this study, a novel ionospheric storm scale (ISS) index is developed based on statistical analysis of total electron content (TEC) data from 257 ground‐based GNSS stations across China ...
Shuangshuang Shi   +8 more
wiley   +1 more source

Essential parameters of Space-Borne Oscillators that ensures performance of Satellite-Based Augmentation System

open access: yes, 2023
Satellite-Based Augmentation System (SBAS) arose from the need to provide continuity, availability, integrity and accuracy of global positioning signals to eliminate errors and compensate for discrepancies associated with GPS signals and other navigation
Chris Chatwin (4460602)   +1 more
core  

Modeling of Ionospheric Delay for SBAS Using Spherical Harmonics Functions [PDF]

open access: yesTransNav, 2013
In SBAS (satellite-based augmentation system), it is important to estimate ionospheric delay accurately to guarantee user's accuracy and integrity. Grid based ionospheric models are generally used to estimate ionospheric delay for SBAS.
Deokhwa Han, Ho Yun, Changdon Kee
doaj   +1 more source

Artificial Neural Network-Based Ionospheric Delay Correction Method for Satellite-Based Augmentation Systems

open access: yesRemote Sensing, 2022
Ionospheric delay is a critical error source in Global Navigation Satellite Systems (GNSSs) and a principal aspect of Satellite Based Augmentation System (SBAS) corrections.
Shan Wang, Ding Wang, Junren Sun
doaj   +1 more source

Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion

open access: yesAdvanced Science, Volume 13, Issue 33, 15 June 2026.
This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv   +6 more
wiley   +1 more source

Nigcomsat-1R Satellite-Based Augmentation System(SBAS) test bed trial: a scientific explanation

open access: yes, 2020
In October, 2016 the China Great Wall Industry Corporation and Spacestar Technology Company Ltd of China entered into a cooperative agreement with Nigerian Communications Satellite Ltd on a Satellite-Based Augmentation System (SBAS) performance test and ...
Lasisi Salami Lawal (16038599)   +3 more
core  

Performance Analysis of Spoofing and Interference Detection Techniques for Satellite-Based Augmentation System and Global Navigation Satellite System Reference Receivers [PDF]

open access: yes
Global Navigation Satellite System (GNSS) reference receivers are an essential part of ground stations that make the operation of Satellite-Based Augmentation Systems (SBAS) possible.
Solé Gaset, Marc   +9 more
core   +1 more source

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