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In the satellite formation task, due to a satellite failure or formation task change, it is necessary to reconstruct the formation. In the process of reconfiguration of satellites, satellites anti-collision research is one of the most important links. In this paper, by collapsing the initial covariance matrix of the satellite, the collision probability density function is integrated in the region...
This paper is focused on designing a spatial combat situation deducing system (SCSDS). HLA-based collaborative simulation is an effective way to integrate different models together to accomplish the combat situation deduction. First, standardized description mechanism of SCSDS is established, including a variety of description templates. Then, the mathematic models library of SCSDS is presented. Models...
For the space-borne timing or timekeeping system, the relativistic effect has become an important aspect. This paper outlines the fundamental concepts of relativistic time transfer, using relativistic theory to research a wide range of temporal-spatial transfer due to clock measurement error and the way time synchronization between ground and space, from which the components and magnitudes of various...
Great resources of monitoring and control have been saved in orbit determination for satellite constellation based on satellite-to-satellite and earth-to-satellite tracking, the tracking would have broad application prospects in future constellation and rendezvous and docking of manned space vehicle. The key technologies in multi-satellite precision orbit determination with inter-satellite-link (ISL)...
We investigate the orbital history of the small neptunian satellites discovered by Voyager 2. Over the age of the Solar System, tidal forces have caused the satellites to migrate radially, bringing them through mean-motion resonances with one another. In this paper, we extend our study of the largest satellites Proteus and Larissa [Zhang, K., Hamilton, D.P., 2007. Icarus 188, 386–399] by adding in...
We investigate the orbital resonant history of Proteus and Larissa, the two largest inner neptunian satellites discovered by Voyager 2. Due to tidal migration, these two satellites probably passed through their 2:1 mean-motion resonance a few hundred million years ago. We explore this resonance passage as a method to excite orbital eccentricities and inclinations, and find interesting constraints...
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