... 单位权 unit weight 单位权方差，*方差因子 variance of unit weight 弹道摄影测量 ballistic photogrammetry ...
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使用由方差和平均梯度构造的新的评价因子——小波邻域信息量作为融合规则选取小波高频系数。
For the image high-frequency part, use the new evaluation factor - wavelet neighborhood information to choose the ultimate wavelet high-frequency coefficients.
对因子设计而言，现已有若干种不同方法来估计实验误差方差。
For fractional factorial designs several different approaches to estimate this variance have been suggested.
运用单因子方差分析及进一步的多重比较、立样本t检验的统计方法。
The simple factor analysis of variance and further statistical method of multiple comparison and independent exponent t-test were used.
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