Results 51 to 60 of about 174,298 (206)

Navigation satellites [PDF]

open access: yes, 1964
Satellite navigation system - geodesy ...
Kershner, R. B.
core   +1 more source

Navigation by satellite using two-way range and doppler data [PDF]

open access: yes
Navigation by satellite using two-way range and Doppler ...
Hutcheson, J. H.   +2 more
core   +1 more source

The dynamical structure of the MEO region: long-term stability, chaos, and transport

open access: yes, 2015
It has long been suspected that the Global Navigation Satellite Systems exist in a background of complex resonances and chaotic motion; yet, the precise dynamical character of these phenomena remains elusive. Recent studies have shown that the occurrence
Alessi, Elisa Maria   +5 more
core   +2 more sources

Safety Control for Satellite Formation Flying via High-Order Control Barrier Functions

open access: yesApplied Sciences
In satellite formation flying, maintaining a predefined safety distance between the reference satellite and its accompanying satellites is critical to prevent collisions—a requirement that traditional control methods fail to satisfy.
Xu Zhang   +3 more
doaj   +1 more source

A contour matching approach for accurate NOAA-AVHRR image navigation [PDF]

open access: yes, 2000
Although different methods for NOAA AVHRR image navigation have already been established, the multitemporal and multi-satellite character of most studies requires automatic and accurate methods for navigation of satellite images.
Eugenio, F   +3 more
core  

Towards Quantum Communication from Global Navigation Satellite System

open access: yes, 2018
Satellite-based quantum communication is an invaluable resource for the realization of a quantum network at the global scale. In this regard, the use of satellites well beyond the low Earth orbits gives the advantage of long communication time with a ...
Agnesi, Costatino   +9 more
core   +1 more source

Fast and Reliable Network RTK Positioning Based on Multi-Frequency Sequential Ambiguity Resolution under Significant Atmospheric Biases

open access: yesRemote Sensing
The positioning performance of the Global Navigation Satellite System (GNSS) network real-time kinematic (NRTK) depends on regional atmospheric error modeling.
Hao Liu   +5 more
doaj   +1 more source

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