一种时延NCS性能衰退分析方法

An analysis Methodology of performance degradation for network control system base on time-delay

时延在网络数据传输中是不可避免的,NCS时延尤其是不确定的长时延直接影响其服务性能。本文在定性分析了NCS时延特点和组成的基础上,结合NCS系统结构,建立了相应的基于时延的系统性能衰减模型,并进行了仿真实验和分析。该模型的建立,既有利于NCS时延和系统性能分析评价,又可以为NCS系统结构和协议的优化提供理论依据。

Time-delay are inevitable in network data transmission. The time-delay of NCS, especially the indeterminate long time delays, can directly affect their system＇s performance. A model is presented which describes system＇s degraded performance base on time delays after analyzed the time delays and system architectures, and then take a simulation experiment and analysis. The model is not only benefits for the analysis of time delays and the evaluation of system performance but also provide the theoretical evidence of the the optimize of system architectures and protocols.