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由于运行于椭圆轨道上的卫星在其远地点附近有较长的停留时间,如果选择轨道远地点位于覆盖区域上空,则采用椭圆轨道卫星星座以进行区域性覆盖以取得很好的覆盖效果. 基于这一设计思想,提出了一种覆盖中国区域的椭圆轨道卫星星座的设计方法,利用覆盖区域的外接圆作为设计参数,通过分析和计算给出了一组轨道周期为6 h 的椭圆轨道卫星星座参数. 同时针对该星座对中国主要城市的覆盖特性的分析证明了该椭圆轨道卫星星座的覆盖效果优良.
Since satellites operating on elliptical orbits have longer residence time near their apogee, elliptical orbiting satellite constellations are used for regional coverage for good coverage if the orbital apogee is located over the coverage area. Based on this design idea, a design method of elliptical orbit satellite constellation covering China is proposed. By using the circumscribed circle of the coverage area as the design parameter, a set of elliptical orbit satellites with orbital period of 6 h is given through analysis and calculation. Constellation parameters. At the same time, the analysis of the coverage characteristics of major cities in China by the constellation shows that the coverage of the elliptical orbit satellite constellation is excellent.