...计量可由二个方差的比值算得 ˆ(2qs如果qˆ是q 的一个点估计，有[s][s≤，则qˆ是q 的最小方差估计(minimum variance estimation). 具有最小方差的无偏估计量是最好的估计量.
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最小方差估计量 [数] Minimum variance estimator
无偏最小方差估计 UMVE
线性最小方差估计 Linear minimum variance estimation ; Linear Minimum Mean Square Error
线性无偏最小方差估计 LUMV
将线性最小方差估计 LMMSE ; linear minimum mean square error
最小方差估计值 minimum variance estimate
最小方差无偏估计 minimum variance unbiased estimator ; MVUE
最小方差功率谱估计 MVSE
线性最小均方误差估计 LMMSE ; Linear Minimum Mean Square Error
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当噪声的方差已知，且过程是平稳的，应用递推最小方差估计，能够增强信号。
When the noise variance is known, and it's process is stationary, the signal can be enhanced by use of the recursive least mean-square estimation.
线性无偏最小方差估计与最优加权最小二乘估计是线性模型下两种最常用的估计方法。
The linear unbiased minimum variance estimate and the optimally weighted least squares estimate are two of the most popular estimation methods for a linear model.
在给定的线性模型下，讨论了最优加权最小二乘估计与线性无偏最小方差估计性能比较。
The discussion on the property comparison between optimally weighted LS estimate and linear unbiased minimum variance estimate for a linear model is presented.
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