【作者】 邓北星； 黄永峰； 张悦； 李星；

【Author】 DENG Bei-xing1,HUANG Yong-feng1, ZHANG Yue2, LI Xing1 1 Electronic Engineering Department, Tsinghua University, Beijing 100084, China 2 Exploration and production Research Institute, China Petroleum and Chemical Corporation, Beijing 100083, China

【机构】 清华大学电子工程系； 中国石油化工股份有限公司石油勘探开发研究院；

【摘要】 针对在某些干扰源作用下的函数单元不能构成充分可靠的系统这一理论问题,为了寻找建立用函数单元不能构成充分可靠的系统的充分条件,扩大具有此类性质的干扰源的集合是十分重要的。本文建立了两类干扰源的模型:实干扰源及常可靠干扰源,并利用概率分析的方法研究了在这两类干扰源作用下的由函数单元构成的系统的可靠性,给出了系统可靠度的下界估计方法。最后结合用不可靠的单元能否构成充分可靠的系统的理论,阐明了用在实干扰源和常可靠干扰源作用下的单元不可能构成充分可靠的系统,即扩大了具有上述性质的干扰源的集合。更多还原

【Abstract】 In the theoretic problem that the arbitrarily reliable system can not be constructed with function elements, under some interference source, in order to establish the sufficient condition that the arbitrarily reliable system can not be constructed with function elements, it is very important to expand the interference source aggregate with the property. In this paper based on two models built by two types of corresponding interference sources: interference source possessing essential input sets and constant reliable interference source. Applying methods of the probability analysis, the reliability of the systems affected by the two types of interference sources is studied and the lower bound of the reliability is presented. The results show that it is impossible that the elements affected by the interference sources can build arbitrarily reliable systems.更多还原