covariance

1. Covariance analysis was used to analyze herbicide efficacy data from rapeseed experiments.
   采用协方差分析方法，对油菜田除草剂的试验结果进行了分析。
2. For the constraint system of covariance matrix being uncertain, a robust moving horizon estimation ( MHE) strategy is discussed.
   针对噪声方差不确定的约束系统，讨论了一种鲁棒滚动时域估计（MHE）方法。
3. Objective To study the effect of covariate imbalance on analysis of covariance.
   目的探讨协变量的不均衡对协方差分析的影响。
4. According to this, a covariance Intersection optimal algorithm is put forward, in order to solve the problem of data association in SLAM filter algorithm.
   围绕这个问题提出了融合SLAM这两个估计的协方差交叉优化算法，解决了SLAM常用滤波算法易受到数据相关性困扰的问题。
5. Firstly, a weighted realized variance and a weighted realized covariance which are based on high frequency data are put forward.
   首先提出了基于高频数据的赋权已实现变差估计量和赋权已实现协变差估计量。
6. A New Inverse Method of Covariance Matrix in STAP
   STAP中协方差矩阵新的求逆方法
7. Background error covariance is an important part of variational data assimilation system, which is used to spread the observation information to other grid points and vertical levels of the model.
   背景误差协方差是变分资料同化系统中的一个重要组成部分，能将观测信息从观测点传播到周围的模式格点和垂直层上。
8. A full introduction to covariance and contravariance would take too long.
   对协变与逆变的完整介绍要花很长时间。
9. Covariance is the ultimate law of library science development which has been proved by library science history.
   【中英文摘要】图书馆学史证明，协变性是图书馆学发展的根本规律。
10. Blind Separation Algorithm Based on Diagonalization of the Covariance Matrix
    基于协方差矩阵对角化的盲信号分离
11. Method for speaker recognition based on With-in Class Covariance Normalization and SVM
    基于类内方差归一化和SVM的说话人识别方法
12. An expression for the mean and covariance matrix of normal random matrix polynomial is derived by applying the method of matrix differentiation to generating function.
    本文应用对母函数微分的方法得到正态随机矩阵多项式的均值与协差阵的表达式。
13. The least square estimate of covariance matrices in the growth curve model with random effects;
    该文研究了非线性随机效应模型，为非线性张度大的模型提供了理论和方法。
14. Due to these correlations, the channel estimate and its error covariance is obtain by utilizing the outdated CSI.
    根据相关性，利用过时的信道信息来对当前信道进行估计，并得到估计误差方差。
15. A Sensor Management Algorithm Jointly Controlled by Covariance and Information Gain
    一种协方差和信息增量联合控制的多传感器管理算法
16. Unbiased estimation for the two parameters of the special model is proposed and improved by covariance adjustment approach, separately.
    对两个参数各提出了一个无偏估计并采用协方差改进法分别对其作了改进。
17. For this special multisensor system, distributed optimal fusion algorithm is received by avoiding computing correlated estimation covariance based on the matrix operation.
    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。
18. This paper discusses the problem about admissibility of homogenous and non-homogenous estimate of covariance matrix in growth curve model and gets the necessary and sufficient conditions.
    中协差矩阵的二次型估计在齐次和非齐次估计类中的可容许性问题，并得到了相应的充要条件。
19. Covariance is used to detect watermark, which may reduce the influence of initial data or chaos in partially.
    在水印检测中使用协方差方法，尽可能地减小了原数据或噪声对水印检测的影响。
20. A semi-parametric estimation method of systemic errors and covariance matrices in Kalman filter
    一种Kalman滤波系统误差及其协方差矩阵的半参数估计方法
21. Stationary of this processes are proved, Ergodicity of the mean and Covariance functions of this process is established;
    证明了该过程是宽平稳过程，均值与协方差均是遍历的；
22. Multiple Random Variables, Joint and Conditional Distributions, Independence, Covariance and Correlation.
    多重随机变数，联合与条件分布，独立，共变异与共相关。
23. Based on the robust estimation in the state-space and the adaptive modification of prediction covariance matrix, a new algorithm was proposed to track Thevenin equivalent parameters.
    融合预报协方差矩阵的自适应调整和状态空间鲁棒性估计，给出辨识戴维南等值参数的新算法。
24. In this paper, the authors expounded covariance analysis with two correlated variables and solved it with quadric form.
    利用二次型解决了双协变量的方差分析方法。
25. There are two important factors that affect the performance of Space-Time Adaptive Processing ( STAP), that are steering vector mismatch and covariance matrix mismatch.
    导向矢量失配和协方差矩阵失配是影响空时自适应处理（STAP）性能的两大主要因素，基于在最差情况下的性能最优，提出了一种稳健的STAP算法。
26. This method established is applicable to collision probability problem involving relative velocity and error covariance changing with time.
    所建立的这种描述和计算方法适用于相对速度和误差协方差矩阵随时间任意变化的情况。
27. A Storage Design of the Covariance Matrix and Its Derivative in the Algorithm of Mixed Model;
    指出混合模型建模的基本原理和模型中各因子的选择原则和方法。
28. Then it can establish the estimators of means and covariance matrix of the multivariate normal distribution, and estimate their confidence limits and intervals in each state.
    文中详细讨论了多个状态下二元正态分布均值和方差的无偏估计和置信区间估计。
29. We concluded that the covariance matrix is nonpositive definite, there is either arbitrage opportunity or efficient subset.
    当协方差矩阵非正定时，要么存在套利机会，要么存在有效子集（即有多余的证券存在）。
30. So, we're going to have the covariance between r1 and r2,12 and those are the inputs to our analysis.
    这里有一个r1和r2之间的协方差，你也可以叫它σ12，which，you，can，also，call，σ，这些就是我们分析所需要的信息。

noun

1. (statistics) the mean value of the product of the deviations of two variates from their respective means