基于覆盖圆的太阳同步回归轨道卫星目标轨迹调整方法

遥感卫星星座在环境监测、地理测绘等领域运用中,需要考虑目标轨迹分布的优化问题.轨迹分布与星座的重访能力和进出站间隔保持等应用需求密切相关.目前对星下点轨迹分布的优化和调整还缺乏准确实用的方法,存在卫星数目增多带来的计算量增加问题和对多种需求综合考虑不够的问题.为了克服现有技术的不足,解决太阳同步回归轨道遥感卫星星座的目...

Nominal ground trace adjustment for regression SSO satellites based on revisit-circle

Satellite constellation is widely used in environmental monitoring, geographical mapping and other remote sensing applications. Ground-trace distribution of satellites in a constellation should be well designed so as to achieve better performance such as less revisit time to targets and longer access interval to ground stations. At present, accurate and useful method for the optimization and adjustment of ground trace distribution is still lacking because of the soaring amount of calculation with increasing number of satellites and the coupling of requirements to be considered. In order to solve the optimization problem of ground trace distribution of remote sensing satellite constellation in regression Sun synchronous orbit, an accurate and comprehensive method based on a “revisit-circle” was proposed. The simulation results show that this method can simultaneously consider satellite phase retention and coverage performance under a unified framework, and that it can provide an intuitive and effective solution to the optimization of multi-target coverage performance, which can be used for satellite constellation design and performance adjustment of on-orbit satellite constellation.