查询词典 covariances

The proposed method requires no a priori estimates of noise covariances, provides consistent estimates.

所提的方法不要求噪声协方差的先验估计，提供一致的估计。

The Lyapunov equations of computing local filtering error covariances are presented, which are applied to obtain the optimal weighting coefficients.

提出了计算局部滤波误差间的互协方差的Lyapunov方程，可用于计算最优加权系数。

The asymptotic covariances of different unbiased estimates are derived, which can be used for the comparison of different measurement methods and various estimations.

在连续系统离散时域模型辩识中，论文分析了采样频率对辨识精度的影响，给出了采样频率选取的经验公式。

NMC method is widely used to statistically analyze background error covariances currently.

NMC方法是目前较广泛采用的一种对模式背景场误差协方差进行统计分析的一种方法。

First, corresponding to the unknown virtual control coefficients and unknown noise covariances, some parameters to be estimated are properly chosen.

摘要研究了一类具有未知虚拟控制系数和未知噪声协方差的随机非线性时滞大系统的适应镇定问题。

A reduced order fit involved less parameters and smoothes out differences in estimates of covariances.

降价配合涉及的参数较少，同时可以缓和协方差估值间的差异。

In which a security's required return depends on its expected liquidity as well as on the covariances of its own return and liquidity with the market return and liquidity.

证券的收益依赖于它的期望流动性及其与收益之间的协方差。

While defined in terms of variances and covariances, PCA is usually applied to standardized data since the results are sensitive to the often arbitrary choices of units of measurement used in a study.

就定义差异变量和协方差而言，PCA分析前通常要先标准化处理数据，因为，PCA对任意选择研究中的计量单元是敏感的。

Using our experimental data and simulation database to regression based on population model with covariances by WinNonMix, respectively.

再以WinNonMix软体将dextromethorphan临床人体试验所得之数据及模拟数据进行回归，并且建立一适当之族群药物动力学模式。

Dependencies among random variables, interaction between expectations and covariances, as well as the correction of covariance to expectation are all considered.

在正态分布的前提下，利用线性化系统模型，从某些系统参数的概率特性计算出特征根实部的均值、方差，而全系统的稳定

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。