液晶与显示2011，Vol.26Issue(1)：68-72,5.DOI:10.3788/YJYXS20112601.0068
对数正态分布下基于MLE的红外LED的寿命预测
Life Prediction for Infrared LED Based on MLE under Lognormal Distribution
摘要
Abstract
In order to acquire the life information of infrared LED, the lognormal distribution function was applied to describe the life distribution, the maximum likelihood estimation (MLE) was employed to estimate the mean value and the standard deviation of logarithm,and the statistics and analysis on constant stress and step stress test data were achieved.Furthermore, the predicted-life software was self-designed. The numerical results show that the infrared LED life is characterized by lognormal distribution, and the accelerated model meets the inverse power law. The acceleration parameters, which were accurately calculated,enable rapid estimation of infrared LED life.关键词
红外LED/寿命预测/对数正态分布/MLE分类
信息技术与安全科学引用本文复制引用
张建平,武文丽,周廷君,朱文清..对数正态分布下基于MLE的红外LED的寿命预测[J].液晶与显示,2011,26(1):68-72,5.基金项目
重新型显示技术及应用集成教育部蓖点实验室(上海大学)资助项目(No.P201002) （上海大学）
上海市科委项目(No.10dz1140206) （No.10dz1140206）
上海市自然科学基金(N0.09ZR1413000) （N0.09ZR1413000）
上海市教育委员会科研创新项目(No.11ZZ172,No.11ZZ171) （No.11ZZ172,No.11ZZ171）
上海市教委重点学科(第五期)G51304 （第五期）
上海市教委第三期本科教育高地建设项目 （）
