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对采用单交换机光纤通道(FC)网络的航空电子系统进行了描述,建立了网络的排队模型。根据M/G/1模型对FC网络的队列长度、服务时间等参数进行了分析和估计。在OPNET平台下对4种周边节点数不同的FC网络进行了仿真;通过仿真分析了FC网络端到端延迟和网络节点数关系,并对评估的数学模型进行了修正;研究了网络中的延迟“抖动”情况,并分析了4种FC网络各自达到延迟稳定值的时间。
The avionics system using a single switch Fiber Channel (FC) network is described and a network queuing model is established. According to the M / G / 1 model, parameters such as queue length and service time of FC network are analyzed and estimated. Four kinds of FC networks with different number of neighboring nodes are simulated under the OPNET platform. The relationship between the end-to-end delay of FC network and the number of nodes in the network is analyzed by simulation. The mathematical model of the evaluation is modified. The delay in the network “Jitter ” situation, and analyzed the four kinds of FC network delay stability value of each time.