复杂工况下航空电子通信网络数据传输延时补偿研究

Research on Data Transmission Delay Compensation of Avionics Communication Network under Complex Working Conditions

为了解决航空电子通信网络数据在复杂工况下受到环境噪声干扰的影响大以及数据传输延时过大的问题,以复杂工况为背景,研究航空电子通信网络数据传输延时补偿。采用非线性变换算法分析通信网络数据状态,得到影响延时因素的离散性值及线性变化。建立数据传输延时状态模型,分析每个节点实时状态,计算数据传输状态和延时参数,并求解二者间的关系。将数据传输延时问题抽象为先到先服务的排队服务,并计算数据发送、到达速率与延时时间的关系。在此基础上,求解最大时间节点的实时延迟数值,按照延迟优先级顺序实行差值填补,完成数据传输延时补偿。结果表明,所提方法有良好的补偿精度和补偿效果,可降低航空电子通信的延迟时间,实现实时命令接收和消息传递功能,说明所提方法具有一定的实用价值。

ed as a first-come-first-served queuing service,and the relationship among data transmission rates,arrival rates and delay time is calculated.Based on this,the real-time delay values at the maximum time point are determined,and the difference filling process is performed in the order of delay priority to achieve data transmission delay compensation.The results show that the proposed method has good compensation accuracy and effectiveness,reduces the delay time in avionics communication and enables real-time command reception and message transfer capabilities,which indicates the practical value of the proposed method.