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LEO/MEO双层卫星星座是现代卫星通信系统星座研究的热点。运用理论分析的方法,对LEO/MEO双层卫星星座层间链路的链路距离、仰角、方位角等几何参数进行了研究,给出了各自的计算公式,并进行仿真分析。通过仿真发现,层间链路几何参数变化的突出特点是变化范围大、变化剧烈且周期性不明显。
LEO / MEO double-layer satellite constellation is a hot spot in the research of constellation of modern satellite communication system. Using theoretical analysis method, the geometrical parameters such as link distance, elevation angle and azimuth angle of LEO / MEO double-layer satellite constellation interlayer link are researched. Their respective formulas are given and the simulation analysis is carried out. Through the simulation, it is found that the prominent characteristic of the change of the geometric parameters of the interlayer link is that the variation range is large, the variation is drastic and the periodicity is not obvious.