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1·FATAFE realizes unbiased estimation and its estimated variance approaches to theoretical lower bound if only signal-to-noise ratio is not very low.

只要信噪比不甚低，频点自跟踪频率估计是无偏的且估计方差接近理论下限。

2·In this paper properties of AFE and influences of frequency bias are analyzed, and formula on estimated variance lower bound is derived, and condition which is required by the bound is got.

本文分析了自适应频率估计器的性能及频偏的影响，得出了自适应频率估计方差下限的公式及达到此下限的条件。

3·Suppose the estimated duration of a task is 3 months, and the variance of the estimate is 1 month.

假设估算的任务持续时间是 3 个月，并且估计的方差是 1 个月。

4·Statistical methods for combining the results of studies generally weight the influence of each study by the inverse of the variance for the estimated measure of effect.

合并研究结果的统计学方法通常采用待估效应测量值的方差的倒数来对每一个研究的影响进行加权。

5·The threshold of each leaf is calculated through the variance of each and the estimated noise variance of the entire image.

通过每一叶节点以及整个图像的噪声的估计方差变化计算叶节点阈值。

6·Variance components estimated by MINQUE method can be used in significance test for linear contrasts of variety effects.

用MINQUE法估算各项方差分量，然后对品种效应的线性对比作显著性测验。

7·Methods We applied generalized linear mixed models for the nuclear family data to set up the genetic variance component model and estimated parameters using MCMC.

将广义线性混合模型应用于核心家系资料建立遗传方差分量模型，运用MCMC方法进行参数估计。

8·With frequency bias increasing, estimated bias and variance of adaptive frequency estimator (AFE) enlarge.

随着频偏的增大，自适应频率估计的偏差和方差也随之增大。

9·Aim Using the variance matrix of estimated error, positional accuracy can be compared with different mixing together data, it has put forward a kind of basis for system location to select data.

目的通过估计误差方差阵，对多传感器组合导航系统中不同的融合数据进行定位精度比较，为系统定位提供选择数据的依据。

10·The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602.

从半同胞协方差估计出来的，同一性状的加性遗传方差为0.9602。