电信系统可靠性评估方法案例研究  

Research on Reliability Evaluation of Telecommunication Systems:A Case Study

作　　者：史栋杰[1] 顾庆[1] 冯光成[1] 陈道蓄[1] 

机构地区：[1]南京大学计算机科学与技术系计算机软件新技术国家重点实验室,南京210093

出　　处：《计算机科学》2009年第1期273-278,共6页Computer Science

基　　金：国家"863"项目(编号:2006AA01Z177);江苏省自然科学基金基础研究项目(编号:BK2006115)资助

摘　　要：为了保证一个系统的质量,有必要对其可靠性进行评估。使用平均值方法、定数截尾试验、定时截尾试验、曲线拟合回归分析等常用的可靠性评估方法对目标系统进行可靠性评估,并比较几种可靠性评估方法的准确程度。最后提出使用曲线拟合改进的评估方法,使得可靠性评估结果更加准确。目标系统是4个电信运营中重要的系统设备,使用残差分析R2检验来比较评估结果的优劣。In order to assure a system＇s quality,it is very necessary to evaluate its reliability. This paper put forwards the process of reliability evaluation and compared the results of reliability evaluation of several telecommunication systems using many well-known methods such as fixed number truncated test, fixed time truncated test, and curve fitting and regression analysis. This paper also proposed some methods with improvements of the curving fitting method to get more exact results. The reliability evaluation was on several important systems in the telecommunication operation. To compare the results, we used R^2-value as an indicator of the results of these methods which are used to evaluate the reliability of telecommunication systems.

关 键 词：可靠性 定数截尾试验 定时截尾试验 曲线拟合 R^2检验 电信系统 

分 类 号：TN91[电子电信—通信与信息系统]