相应的估计方差也同时给出。
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。
The threshold of each leaf is calculated through the variance of each and the estimated noise variance of the entire image.
通过理论分析，给出了波达方向估计的一致性证明和估计方差的计算公式。
Subsequently the estimation consistency is proved, and the estimation variance is derived theoretically.
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。
FATAFE realizes unbiased estimation and its estimated variance approaches to theoretical lower bound if only signal-to-noise ratio is not very low.
模拟频率间接估计算法的估计方差比直接估计算法的方差要小2 ~3个数量级。
The variance of the frequency estimates of indirect method is 2 ~ 3 magnitudes less than that of the direct method.
若提高测量仪表精度，则中心差分法估计方差相对值明显改善，可提高到10%以内。
If we heighten the precision of measuring equipment, the central difference's relative error of the estimation variance improved great, which is less than 10%.
在分析了无偏条件及最小估计方差之后，给出了对数正态克立格法方程组及对数克立格方差。
The lognormal kriging systems and logarithmic kriging variance are established after non-bias condition and minimum estimation variance are studied.
文中对结合使用OA-MLHS与BCT从而减少了分布参数的估计方差的数学原理进行了分析。
The principle of variance reduction of model parameters estimation through OA-MLHS together with BCT is also discussed.
在这类特殊的多传感器系统中，本文通过矩阵运算消除相关估计方差，得到了最优分布式融合估计算法。
For this special multisensor system, distributed optimal fusion algorithm is received by avoiding computing correlated estimation covariance based on the matrix operation.
传统方法是通过空域或频域采样，得到该子噪声图像，然后直接对其估计方差，它对图像信息的分布有要求。
The traditional way is to obtain the sub-image by sampling the noised image in spatial or frequency domain, then calculate its variance to replace that of the original noise.
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。
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.
对组件软件可靠性进行优化工作时，不仅需要最大化其可靠性估计值，同时还要最小化可靠性估计方差以及测试代价。
Optimizing the software components reliability, not only need to maximize the reliability of the estimates, but also need to minimize reliability estimation variance and testing costs.
很明显，随着项目参数估计中方差的增加，成功完成项目的可能性就减少。
Clearly, as the variance in the estimates of project parameters increases, the likelihood of completing the project successfully decreases.
注意到风险的严重程度直接关系到项目参数的估计中的方差。
Note that severity of risk is directly related to the variance in the estimation of a project's parameters.
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。
Suppose the estimated duration of a task is 3 months, and the variance of the estimate is 1 month.
估计项目的成本、工作，和持续时间，以及其方差。
Estimate the project's cost, effort, and duration, along with its variance.
特别地，团队可以估计三个值——最低、标准和最高估计值——交涉去掉了风险，并且应用这些值重新估计项目方差。
In particular, the team can estimate the three values — lowest, nominal, and highest estimations — assuming that the risk was removed, and then apply these values to reestimate the project variance.
第一种方法，可以使用数值搜索过程设定不同的m和b值并对它们求值，最终决定产生最小方差的估计值。
First, you can use a numerical search procedure to propose and evaluate different values of m and b, ultimately settling on estimates producing the least squared error.
使用最小方差法来确定最吻合的直线涉及寻找使预测方差最小的m和b的估计值。
Using a least-squared-error criterion to determine the line of best fit involves finding estimates of m and b that minimize the squared error of prediction.
RealOptions方法对待估计中的方差类似于Black - Schole方程中的变动性。
Real Options methods treat the variance in the estimates similarly to volatility in the Black-Scholes equations.
基于线性无偏最小方差估计理论，提出了一种任意相关噪声异类传感器非线性系统状态矢量融合算法。
Based on linear unbiased minimum variance estimation theory, a fusion algorithm which fused the state vector of nonlinear systems with dissimilar sensors with arbitrary correlated noises is developed.
可以用两种基本方法来找到满足最小方差法的估计值m和b。
The estimators, m and b, that satisfy the least-squared-error criterion can be found in two basic ways.
因为这时模型协方差阵结构仍含有方差参数，因此我们的目标是寻求可行估计。
The variance-covariance matrix still include parameter of variance in this condition, so our purpose is to look for feasible estimations.
其中，对于观测向量协方差阵的谱分解估计，我们很容易得到它在一些损失下的风险函数。
Thereinto, for the spectral decomposition estimate of the covariance matrix , we can gain the risk functions under some losses.
在卫星的状态估计过程中应用推广的序列估计算法，借助数值积分方法积分状态向量和协方差矩阵。
For the estimation of satellite state, the extended sequential estimation algorithm was applied. The numerical method was used to integrate state vector and error covariance matrix.
纵向数据为典型的相关数据，数据方差结构选择的正确与否直接影响估计的效率。
Longitudinal data is typical related data, and it is desirable to choose correct data variance structure since the correct structure affects the efficiency of estimation.
给出一种基于噪声方差估计的稳健融合算法。
A robust fusion algorithm based on noise variance estimation is presented.
对应于方差参数这两种估计的回归系数的两种两步估计，它们的均方误差大致相当。
However, two-stage estimates of regression coefficients corresponding to these two estimates have approximate equal mean square error.
赫尔默特方差分量估计公式。
这里的最优准则是指正常应力水平下产品对数平均寿命估计的方差的极小化。
The optimum test design is obtained to minimize variance of least square estimation of the mean life at a normal stress level.
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