Self-organising satellite constellation in geostationary earth orbit

Low Earth Orbit Regional Satellite Constellation Design via Self Organization Feature Maps

Satellite constellation design is one kind of typical Multiobjective Optimization Problem (MOP). In this paper, aim at feature of high-dimensional decision space, an model-based multiobjective Evolutionary Algorithm(EA) via Self Organization Feature Map(SOM) is put forward for reducing decision space dimension of satellite constellation design: internal topology of input training set in the pop...

Analytical method for determining the statistics of interference between non-geostationary-satellite orbit fixed-satellite service systems and other non-geostationary-satellite orbit fixed-satellite service systems or geostationary-satellite orbit fixed-satellite service networks

Dynamics of Spacecraft Plume/Magnetosphere Interactions in Geostationary Earth Orbit

Detailed direct simulation Monte Carlo/Particle in Cell simulations involving the interaction of a hydrazine chemical rocket plume with the rarefied ambient magnetosphere are presented for steady thruster firings in geostationary Earth orbit (GEO). The hydrazine chemical rocket plume is modeled as a neutral gas mixture with thruster exit conditions corresponding to a mass flow rate of 5.0 × 10−...

Capacity provisioning and failure recovery for Low Earth Orbit satellite constellation

This paper considers the link capacity requirement for an LEO satellite constellation. We model the constellation as an N N mesh-torus topology under a uniform all-to-all traffic model. Both primary capacity and spare capacity for recovering from a link or node failure are examined. In both cases, we use a method of ‘cuts on a graph’ to obtain lower bounds on capacity requirements and subsequen...

Optimisation of Antenna Gain for Earth Coverage from Geostationary Satellite

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