航天试验任务IP网性能评估方法与仿真

Performance Estimation Method and Simulation of Aerospace Experimental Mission IP Network

航天试验任务IP网承载航天发射任务的语音、图像、试验数据传输和交换等业务,其性能直接关系到航天发射任务的成败;为实现对航天试验任务IP网络性能的综合评估,建立了IP网络性能评估体系,重点阐述了体系中各分项指标和综合指标的计算方法;最后,以航天试验任务IP网络在不同的时刻承载包长为210字节、速率为90kbs的语音调度业务为例,通过仿真实验,对试验任务IP网络的性能进行了综合评估;仿真结果表明,网络综合性能指标在1.0以上时,能够满足航天任务语音调度的业务需求,该评估方法能够实时地表征出网络性能。

Aerospace experimental mission IP network takes on many operations, such as voice, image, experimental data transmission and exchange, so its performance directly affects the success of aerospace launch mission. In order to synthetically estimate the performance of aerospace experimental mission IP network, the performance estimation system of IP network is established, the calculation menthods of all subentry index and integrative index of IP network performance are especially expounded. Finally, seting an example of aerospace experi- mental mission IP network taking on voice operation, whose package length is 210 bytes and speed is 90 kbs, the performance of IP network is synthetically estimated by simulation experiment. The results of simulation experiment demonstrate that when network synthetical per- formance is above 1.0, the IP network can meet the demands of aerospace voice operation, and the estimation method can real--timelly dis- olav oerformance of the IP network,