Results 1 to 10 of about 23,265,270 (342)
TRITON'S EVOLUTION WITH A PRIMORDIAL NEPTUNIAN SATELLITE SYSTEM. [PDF]
Astron J, 2017 The Neptunian satellite system is unusual. The major satellites of Jupiter, Saturn, and Uranus are all in prograde, low-inclination orbits. Neptune on the other hand, has the fewest satellites, and most of the system’s mass is within one irregular ...
Rufu R, Canup RM.
europepmc +3 more sources
Wetland monitoring with Global Navigation Satellite System reflectometry. [PDF]
Earth Space Sci, 2017 Information about wetland dynamics remains a major missing gap in characterizing, understanding, and projecting changes in atmospheric methane and terrestrial water storage.
Nghiem SV +9 more
europepmc +2 more sources
Modeling and Assessment of Precise Time Transfer by Using BeiDou Navigation Satellite System Triple-Frequency Signals. [PDF]
Sensors (Basel), 2018 This study proposes two models for precise time transfer using the BeiDou Navigation Satellite System triple-frequency signals: ionosphere-free (IF) combined precise point positioning (PPP) model with two dual-frequency combinations (IF-PPP1) and ...
Tu R, Zhang P, Zhang R, Liu J, Lu X.
europepmc +2 more sources
Clock-offset computation method of space network aided by satellite clock prediction [PDF]
SHS Web of Conferences, 2023 A novel network clock-offset resolution method for space network is proposed in the paper. In the process of clock-offset resolution based on the network inter-node measurement data, the prediction of satellite clock result is used as the priori ...
Bao Yachuan, Yang Menghuan, Li Jianjia
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Latest Advances in the Global Navigation Satellite System - Reflectometry (GNSS-R) Field
Remote Sensing, 2023 The global navigation satellite system-reflectometry (GNSS-R) field has experienced an exponential growth as it is becoming relevant to many applications and has captivated the attention of an elevated number of research scholars, research centers and ...
N. Rodriguez-Alvarez +2 more
semanticscholar +1 more source
Near Real-Time Wildfire Management Using Distributed Satellite System
IEEE Geoscience and Remote Sensing Letters, 2023 Climate action (SDG-13) is an integral part of the Sustainable Development Goals (SDGs) set by the United Nations (UN), and wildfire is one of the catastrophic events related to climate change.
Kathiravan Thangavel +4 more
semanticscholar +1 more source
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021 Approximate nearest neighbor search (ANNS) in high-dimensional space is essential in database and information retrieval. Recently, there has been a surge of interest in exploring efficient graph-based indices for the ANNS problem.
Cong Fu, Changxu Wang, Deng Cai
semanticscholar +1 more source
Aerospace, 2021 The Small SAR Technology Experimental Project (S-STEP) mission aims to develop a new (space-based 80 kg-class active X-band synthetic aperture radar (SAR)) satellite with a main imaging mode of 1 m resolution stripmap.
Seong-Cheol Kwon +5 more
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LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges
Geo-Spatial Information Science, 2021 With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge +8 more
semanticscholar +1 more source
Geo-spatial Information Science, 2022 With the development of the Low Earth Orbit (LEO) communication constellations, it has become a hot area of research to provide additional navigation augmentation services.
Ziqian Wu +5 more
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