Based on wavelet analysis, wls is the best linear unbiased estimator of regression model parameters in the context of l / f noise 基于小波技术的wls法是具有1f噪声的系统回归模型参数的最佳线性无偏估计。
In the sense of mean squares, maximum likelihood estimator, best linear unbiased estimator, taest linear invariant estimator, and good linear estimator are contracted . fourth, proposed and researched the reliability analysis method under the zero-failure data and doof data . based on the part beta distribution as the prior distribution of failure probability p, = p ( t < r, }, hierarchical bayesian estimate method was discussed, obtain the reliability analysis method under the zero-failure data and the doof data 第四,提出并研究了无失效数据类型和doof数据类型下电连接器的可靠性分析方法,提出了以不完全beta分布为一级先验分布,超参数为[0,1]上的均匀分布作为失效概率先验分布的多层bayes方法,结合加权最小二乘法解决了产品在无失效数据和doof数据下的可靠性分析问题。