Results 1 to 10 of about 2,221 (140)

Dual Stream Transmission and Downlink Power Control for Multiple LEO Satellites-Assisted IoT Networks [PDF]

open access: yesSensors, 2022
The multi-satellites cooperative transmission can effectively increase the data rate that can be achieved by internet of things (IoT) terminals. However, the dynamic characteristics brought by low Earth orbit (LEO) satellites will seriously decrease the ...
Bingyu Xu   +4 more
doaj   +2 more sources

Satellite Selection Strategy and Method for Signals of Opportunity Navigation and Positioning with LEO Communication Satellites [PDF]

open access: yesSensors
Experts and scholars from various nations have proposed studying low Earth orbit (LEO) satellite signals as the space-based signals of opportunity (SOPs) for navigation and positioning.
Yanhua Tao   +4 more
doaj   +2 more sources

GPS Galileo BDS3 LEO uncalibrated phase delays estimation and tight combination precise point positioning with ambiguity resolution [PDF]

open access: yesScientific Reports
Multi-system precise point positioning (PPP) can increase the number of observing satellites and improve the geometric configuration between the receivers and the satellites, and low-Earth orbit (LEO) satellites have fast motion and low orbital altitude,
Jing Fang   +5 more
doaj   +2 more sources

Analysis on BDS-3 Autonomous Navigation Performance Based on the LEO Constellation and Regional Stations

open access: yesRemote Sensing, 2023
The global navigation satellite system (GNSS) is developing rapidly, and the related market applications and scientific research are increasing. Studies based on large low Earth orbit (LEO) satellite constellations have become research hotspots.
Baopeng Xu   +8 more
doaj   +1 more source

Earth Rotation Parameters Estimation Using GPS and SLR Measurements to Multiple LEO Satellites

open access: yesRemote Sensing, 2021
Earth rotation parameters (ERP) are one of the key parameters in realization of the International Terrestrial Reference Frames (ITRF). At present, the International Laser Ranging Service (ILRS) generates the satellite laser ranging (SLR)-based ERP ...
Xingxing Li   +5 more
doaj   +1 more source

Performance Assessment of Multi-GNSS PPP Ambiguity Resolution with LEO-Augmentation

open access: yesRemote Sensing, 2023
The fast motion of low Earth orbit (LEO) satellites provides rapid geometric changes in a short time, which can accelerate the initialization of precise point positioning (PPP).
Qin Li   +4 more
doaj   +1 more source

GNSS rapid precise point positioning enhanced by low Earth orbit satellites

open access: yesSatellite Navigation, 2023
The Low Earth Orbit (LEO) satellites can be used to effectively speed up Precise Point Positioning (PPP) convergence. In this study, 180 LEO satellites with a global distribution are simulated to evaluate their contribution to the PPP convergence.
Ju Hong   +7 more
doaj   +1 more source

Switched Ethernet Networking over LEO Satellite [PDF]

open access: yes2005 2nd International Symposium on Wireless Communication Systems, 2005
Satellite onboard switching capabilities, and their possibility to enable "over-the-air" networks, are a strongly innovative achievement of modern satellite communication. The exploitation of satellite networking is especially relevant in the case of low Earth orbit satellites (LEO), where the reduced latency makes a LEO mesh network highly appealing ...
Mancuso, V   +3 more
openaire   +2 more sources

Integrated Precise Orbit Determination of Multi-GNSS and Large LEO Constellations

open access: yesRemote Sensing, 2019
Global navigation satellite system (GNSS) orbits are traditionally determined by observation data of ground stations, which usually need even global distribution to ensure adequate observation geometry strength.
Xingxing Li   +8 more
doaj   +1 more source

Controlling Antenna Sidelobe Radiation to Mitigate Ku-Band LEO-to-GEO Satellite Interference

open access: yesIEEE Access, 2023
Low-Earth orbiting (LEO) satellites now can provide broadband service anywhere in the world, but they must share the radio spectrum with geosynchronous Earth-orbiting (GEO) satellites.
Alex Hills   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy