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Applications of the figure-8 satellite system

机译:图八卫星系统的应用

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The figure-8 satellite (quasi-zenithal satellite) system is a satellite constellation consisting of three or more satellites placed in inclined geo-synchronous circular orbits with an identical inclination of around 45 degrees. At any time, at least one of the three satellites is moving near the zenith view from Japan. The sub-satellite point traces a so-called ‘figure of eight' locus on the ground, elongating in the north-south direction with an arbitrary point on the equator in the cen- ter The figure-8 satellite system has several potential appli- cations including mobile satellite communications at a high- elevation angle, dual use of the same frequency between geo- stationary satellites and figure-8 satellites in fixed-satellite services, satellite-based positioning, and observation of the polar region. This paper describes applications of the figure- 8 satellite system. In particular, the applicability of the satel- lite system to mobile satellite communications is shown by the experimental results of tests using the COMETS satellite.
机译:图8卫星(准天顶卫星)系统是由三个或更多卫星组成的卫星星座,这些卫星位于倾斜的地球同步圆轨道上,倾斜度约为45度。任何时候,三颗卫星中至少有一颗正在从日本接近天顶。卫星下的点在地面上追踪所谓的“八位数”轨迹,在南北方向上延伸,中心有赤道上的任意点。图8卫星系统具有几个潜在的应用领域。包括高仰角的移动卫星通信,卫星固定业务中地静止卫星和图8卫星之间相同频率的双重使用,基于卫星的定位和极地观测。本文介绍了数字8卫星系统的应用。特别是,通过使用COMETS卫星进行的测试实验结果表明了卫星系统在移动卫星通信中的适用性。

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