流星余迹通信不同于传统的通信,它是低速率通信,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.根据流星轨道分布的特点,推导出轨道-辐射的转换,得到流星分布和通信链路的关系,建立了流星余迹通信信道季节变化预测模型,并将预测模型应用于流星余迹通信链路.预测的结果和中纬度雷达观测结果比较一致,为建立流星余迹通信系统提供了技术支持.%Meteor trail communication is different from traditional communications. It is a low data rate communication with characteristics of burst, discontinuity and unfixed time. It is necessary to construct prediction model of meteor trail communication channel due to its complexities. According to meteor orbit distributions, the transformation from orbit to radiant is derived, and the relationship between meteor ecliptic distribution and communication link is obtained. The seasonal variation prediction model of meteor trail communication channel is constructed. The model is applied in meteor trail communication links. The results predicted by the model have good agreement with results observed by mid-latitude radar. The model given herein can be helpful to construct meteor trail communication system.
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