Results 11 to 20 of about 91,187 (349)
An accurate description of the relative motion of satellites is critical for space missions in the complex geostationary earth orbit space environment. Here, a new relative motion model is established considering major perturbations.
Dali Zhang +4 more
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Self-organising satellite constellation in geostationary Earth orbit [PDF]
This paper presents a novel solution to the problem of autonomous task allocation for a self-organizing satellite constellation in Earth orbit. The method allows satellites to cluster themselves above targets on the Earth’s surface.
Colombo, Camilla +3 more
core +1 more source
Multi-function array SAR system on a spaceborne dual platform
This study proposes a sparse linear array synthetic aperture radar (LASAR) on a spaceborne dual platform. The transmitting elements are placed at the LASAR tips that form a satellite's dual platform, and the receiving elements are placed on the large ...
Dehua He +4 more
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Classical Laplas method for determination of Keplerian orbital elements is described. The values obtained are improved by the method of differential corrections.
O. A. Bazyey +2 more
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Everynight Accounting: Nighttime Lights as a Proxy for Economic Performance of Regions
Artificial nighttime lights, emitted from residential, industrial, commercial and entertainment areas, and captured by satellites, have proven to be a reliable proxy for on-ground human activities [...]
Nataliya Rybnikova
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Clutter simulation and characterisation of space-borne GEO-LEO radar
Compared with ground radars, space-borne bistatic radar shows great advantages in higher signal-to-noise ratio (SNR) and robuster security. Firstly, this study establishes space-borne geosynchronous satellite-low orbiting satellite (GEO-LEO) space–time ...
Huihui Ding +3 more
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Effects Of Direct And Indirect Solar Radiation Pressure In Orbital Parameters Of GPS Satelittes
In this paper we determined the variation of the Keplerian orbital elements of a GPS satellite due to the direct and indirect action of solar radiation pressure. For this study, we created a soft program to determine the Keplerian elements.
Lupu Sergiu, Zaharescu Eugen
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