Results 211 to 220 of about 241,015 (255)

CNN-based compensation of faulty planar phased-array radiation patterns. [PDF]

Sci Rep
Djassem BM, Challal M, Staraj R, Abdolmohammadi HR, Khosravi N, Oubelaid A.   +5 more
europepmc   +1 more source

Robust and Efficient Dual-Strategy Switch Migration for Failure Recovery in Software-Defined Satellite Networks. [PDF]

Sensors (Basel)
Xu S, Yin Z, Huang M, Xing L.
europepmc   +1 more source

The optimization of low Earth orbit satellite constellation visibility with genetic algorithm for improved navigation potential. [PDF]

Sci Rep
Qin C, Gao Y, Wang Y.
europepmc   +1 more source

Gap filling between GRACE and GRACE-FO missions: assessment of interpolation techniques. [PDF]

J Geod
Lecomte H, Rosat S, Mandea M.
europepmc   +1 more source

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On the reliability, availability, and throughput of satellite swarms

IEEE Transactions on Aerospace and Electronic Systems, 2014
Based on the opportunities and gained reputation of individual nanosatellites, a larger number of identical nanosatellites may, in the future, build up a spacecraft swarm for applications, such as multipoint sensing, virtual instruments, or enhanced communication.
Eberhard Gill, Chris Verhoeven
exaly   +2 more sources

Attitude coordination of satellite swarms with communication delays

Aircraft Engineering and Aerospace Technology, 2013
PurposeThis paper aims to investigate the fast attitude coordinated control problem for rigid satellite swarms with communication delays.Design/methodology/approachBased on behavior‐based control approach, the attitude control system is designed to guarantee that the attitude of the satellite swarm converge to a dynamic reference state in finite time ...
Haizhao Liang, Zhaowei Sun, Jianying Wang   +2 more
exaly   +2 more sources

Collaboration among a satellite swarm

Proceedings of the 6th international joint conference on Autonomous agents and multiagent systems, 2007
The paper deals with on-board planning for a satellite swarm via communication and negotiation. We aim at defining individual behaviours that result in a global behaviour that meets the mission requirements. We will present the formalization of the problem, a communication protocol, a solving method based on reactive decision rules, and first results.
Grégory Bonnet, Catherine Tessier
openaire   +2 more sources

On the origin of satellite swarms

Acta Astronautica, 2011
For a species to develop in nature basically two things are needed: an enabling technology and a ‘‘niche’’. In spacecraft design the story is the same. Both a suitable technology and a niche application need to be there before a new generation of spacecraft can be developed.
Verhoeven, C.J.M., Bentum, Marinus Jan, Monna, G.L.E., Rotteveel, J., Guo, J.   +4 more
openaire   +2 more sources

A satellite swarm for radio astronomy

Acta Astronautica, 2014
Abstract At present the celestial sky has been mapped in considerable detail for every major wavelength band, except for the ultra-long radiowave band. A space-based interferometer consisting of a swarm of satellites would make it possible to map the celestial sources of 0.1–10 MHz radiation.
E. Dekens, S. Engelen, R. Noomen
openaire   +1 more source

Thermospheric densities for the Swarm satellite mission

2021
<p>The European Space Agency (ESA) Swarm mission was launched in November 2013 and consists of three identical satellites flying in near-polar orbits. One satellite is flying at about 515 km, while the other two satellites are flying side-by-side at lower altitudes, starting at 480 km altitude and slowly descending due to atmospheric drag
Jose van den IJssel, Christian Siemes, Pieter Visser   +2 more
openaire   +1 more source