Abstract
流星突发通信不同于传统的通信, 其是低速率通信, 具有突发、不连续、不定时的特性. 因此, 流星余迹通信的复杂性要求有必要对其通信信道进行建模. 在流星通信链路中, 流星的辐射分布、可用流星率和占空比是影响流星通信信道性能的重要参数. 流星辐射分布在不同季节不同时间都各不相同, 因此准确预测流星通信链路在不同时间的流星辐射分布, 从而改变大圆路径上天线的指向, 对提高通信速率显得非常重要. 同时, 准确预测流星突发通信链路上的可用流星率和占空比, 有助于准确预测并建立流星突发信道模型. 本文分析研究了偶发流星辐射分布建模的发展, 建立了偶发流星日心空间和地心空间的几何关系, 得到了流星突发通信信道参数预测模型. 并将预测模型应用于流星通信链路, 预测结果与通信链路观测结果比较一致, 为流星通信系统的建立提供了技术支持.
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