This paper studies reliability sampling inspection method for items whose quality characteristic has a normal distribution with an unknownvariance under double combined specification limits.
在综合双侧规格限下研究方差未知的正态分布产品可靠性抽样检验方法。
2
In most cases, the variance of the noise is unknown, so it needs to be estimated.
在大多数情况下，噪声的方差是未知的，需要对其进行估计。
3
This paper presents a dual control strategy with a probing signal for the minimum variance control problems with unknown parameters.