网络化机载测试系统中网络性能测量研究

发布时间：2018-05-02 23:59

本文选题：机载测试 + 被动网络测量　；参考：《计算机测量与控制》2013年03期

【摘要】：随着飞行试验测试技术的快速发展,基于网络化架构的机载测试系统已成为飞行试验测试系统的主要体系结构,然而目前针对机载网络化测试系统的网络性能测量研究较少,使得对其网络行为和性能特点等缺乏理解和精确的描述;因此根据机载网络测试系统的特点,在对机载测试系统进行深入分析的基础上,给出了机载测试系统的网络性能指标;对各种测量方法进行了比较分析;并采用软件检查方法对网络同步性进行了测量,采用基于数字量的测量方法对网络时延进行了测量,采用被动网络测量方法对网络丢包率和及吞吐量进行了测量;并对测量结果进行了分析,从测量结果可以看出网络同步精度达到500ns;在系统采样率达到1024Hz时网络时延趋于稳定主要分布在10ms左右;网络吞吐量主要分布在6Mbps。
[Abstract]:With the rapid development of flight test testing technology, airborne test system based on network architecture has become the main architecture of flight test test system. However, there is little research on network performance measurement for airborne networked test system at present. Therefore, according to the characteristics of the airborne network test system, the network performance index of the airborne test system is given on the basis of in-depth analysis of the airborne test system. Various measurement methods are compared and analyzed, and the network synchronization is measured by software checking method, and the network delay is measured by digital measurement method. The passive network measurement method is used to measure the packet loss rate and throughput of the network, and the results are analyzed. It can be seen from the measurement results that the network synchronization accuracy reaches 500ns, the network delay tends to be stable around 10ms when the system sampling rate reaches 1024Hz, and the network throughput is mainly distributed at 6Mbps.
【作者单位】：中国飞行试验研究院;
【分类号】：TP393.06

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