基于模糊理论的通信系统有效性分析  

Availability Analysis of Communication System with Fuzzy Theory

作　　者：于晓东[1] 高会生[1] 

机构地区：[1]华北电力大学(保定)电子与通信工程系,河北保定071003

出　　处：《通信技术》2008年第6期8-10,共3页Communications Technology

摘　　要：由于通信网络设备缺乏实验数据与现场数据,无法用常规方法对其进行有效性分析,文章根据通信系统的特点,建立了电力通信系统电路的失效模型,讨论了电力通信系统电路有效性研究的方法,给出了用三角模糊数进行模糊故障树分析的方法和步骤,以及模糊重要度分析的方法——限位系数法,并用这一方法进行分析确定影响通信系统失效的主要因素,为电力通信系统电路有效性研究提供了技术途径。For lack of test-data and field-data, the conventional methods cannot be used to study the availability of communication equipments. The failure models of the power communication system are constructed in accordance with the characteristic of the power communication system. A method is discussed in this paper for studying the availability of power communication system. The method and steps for fuzzy fault tree analysis with triangular fuzzy number are presented, And a method --Limited digit coefficient method for analyzing fuzzy significance is given, by which the main factors affecting the failure of the power communication system can be determined, thus providing a technical way for studying the availability of power communication system.

关 键 词：模糊故障树分析 有效性 三角模糊数 限位系数 

分 类 号：TN91[电子电信—通信与信息系统]