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本文介绍基于我国的三种非同步轨道卫星移动通信系统星座方案:低、中轨系统各有24和18颗星,轨道高度分别为1326和8035km,两系统各以5°和30°的仰角对我国的覆盖率为99.78%和99.96%;椭圆轨道系统12颗星,近、远地点分别为427和2906km,以7°和15°仰角对我国北纬20°以上地区覆盖率分别为97.90%和89.61%,若增加4颗中轨卫星,以15°仰角对我国的覆盖率为99.99%。
This paper introduces three constellation schemes based on our country’s three kinds of non-synchronous orbit satellite mobile communication systems: the low and medium rail systems have 24 and 18 stars respectively, the orbital heights are respectively 1326 and 8035km, and the two systems are respectively at an elevation angle of 5 ° and 30 ° China’s coverage rate is 99.78% and 99.96%. The 12 stars of the elliptical orbit system are 427 and 2906km respectively, and the coverage of the area above 20 ° north latitude at 7 ° and 15 ° is 97 .90% and 89.61% respectively. If four medium-range orbiting satellites are added, coverage to China will reach 99.99% at an elevation of 15 °.