残差均方根 SRMR ; RMSEP ; root mean square residual
渐进残差均方和平方根 RMSEA
标准化残差均方根 SRMR ; Standardized Root Mean Square Residual
平方平均残差的平方根 root mean square residual
残余均方误差 excess mse
极限情况下，当混叠十分严重时，相对于理想低通滤波器，用维纳滤波器进行亚象素插值能将预测残差均方和减少一半。
In an extreme case, when the aliasing effects are very severe, using wiener filter can reduce the prediction errors'energy by about 50% in comparison with using the ideal low pass filter.
研究这一估计的性质，证明利用0-K型广义岭估计技术可以改进广义岭估计（在均方残差意义下）。
The 0-K class of estimators if studied, it will be proved that under the mean square residua criterion the estimators can be improved via the generalized ridge regression technique.
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