中文摘要：

在分析流星余迹通信原理及其传输信道物理特性基础上,根据流星余迹电子线密度的分布特性,构建出流星余迹信号初始接收功率的概率密度函数.针对以信号帧为单位的自适应变速率传输机制,推导出欠密类余迹平均信息通过量与传输帧长的关系,提出最佳帧长设计原则,得到自适应传输帧长的理论最佳值.仿真结果表明,在满足通信可靠性及实时性的要求下,所得最佳帧长能使系统平均信息通过量达到最大,有效提高流星余迹信道利用率.

英文摘要：

Based on analyzing the principles of meteor burst communications and the physical characteristics of meteor burst channel,according to the mechanism of using the signal frame as the basic transmission unit for adaptive variable rate transmission,the effects of the frame length on system performance are analyzed in this paper.According to the line electron density distribution of meteor bursts,the probability density function of the initial signal power received from the trails is derived.In terms of the function of the received signal power,the relationship between the system throughput and the frame length is built and the principle of frame length selection is determined.The simulation results show that the optimized frame length can maximize the average throughput of the system and make the best use of the meteor burst channel,while satisfying the reliability and instantaneity of the meteor burst communication system.