摘要
讨论了指数分布场合竞争失效产品加速寿命试验的参数估计,对常用极大似然估计作了一些改进,从而使改进后的参数估计在均方误差意义下更优.
We derive new estimators of accelerated life tests with competing causes of failure under the exponential distribution. The analysis results show that the mean square errors of the new estimators are less than the unbiased estimation＇s and MLE＇s.
出处
《大学数学》
北大核心
2005年第5期91-98,共8页
College Mathematics
关键词
指数分布
竞争失效
加速寿命试验
极大似然估计
exponential distribution
competing causes of failure
accelerated life test
maximum likelihood estimation
