| 基于以太网和PCM的分布式机载测试系统时间延迟分析 |
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| 引用本文： | 吕鹏涛.基于以太网和PCM的分布式机载测试系统时间延迟分析[J].科学技术与工程,2013,13(7):2011-2014. |
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| 作者姓名： | 吕鹏涛 |
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| 作者单位： | 中国飞行试验研究院 |
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| 摘 要： | 目前分布式机载测试系统主要采用PCM和以太网的体系架构,机载测试系统的时间延迟影响着数据采集的实时性、准确性和高效性。在介绍基于PCM和基于以太网分布式机载测试系统的基础上,分别给出了PCM、以太网架构下系统基于模拟量的时延测量方法;并针对同一模拟量信号分别在PCM和网络分布式机载测试系统下对其时延进行了测量,并对实验结果进行了分析。同时根据实验结果对机载测试系统的配置和应用方面提出了一些建议。
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| 关 键 词： | 机载测试 PCM 以太网 时延分析 |
| 收稿时间： | 2012/10/21 0:00:00 |
| 修稿时间： | 2012/10/21 0:00:00 |
Time delay analysis of the distributed airborne test system based on Ethernet and PCM |
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| Lv Pengtao.Time delay analysis of the distributed airborne test system based on Ethernet and PCM[J].Science Technology and Engineering,2013,13(7):2011-2014. |
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| Authors: | Lv Pengtao |
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| Institution: | (Chinese Flight Test Establishment,Xi′an 710089,P.R.China) |
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| Abstract: | Nowadays, the main architecture of distributed airborne testing system is the PCM and Ethernet testing system, time delay in airborne test system affect the real-time, accuracy and efficiency quality of the acquisition system. This paper firstly described the basic knowledge of distributed PCM and Ethernet airborne system, then given the method of how to test the delay, and take an experiment on the two different systems which using a same analogy signal, finally through the analysis of the experimental results, made some suggestions to configure the airborne test system. |
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| Keywords: | airborne test PCM network time delay analysis |
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