如何绘制一个高斯分布的协方差矩阵的轮廓？
How to plot contour of a covariance matrix of a gaussian distribution?
这样的协方差矩阵？
根据协方差矩阵的性质，构造了波达方向矩阵。
A matrix, called the Direction of Arrival (DOA) matrix, is formed from the covariance matrices.
利用协方差矩阵的特征值。能实现信号和噪声的分解。
The eigenvalue of covariance matrix can be used to separate signal from noise.
从应用角度出发，解决了双样本均值向量和协方差矩阵的检验问题。
The testing problem of double sample's average vector and covariance matrix has been solved in the paper.
协方差速度谱是基于采样数据可以排列成协方差矩阵的特征结构而设计的。
Covariance velocity spectrum is based on the fact that the sampled data can be arranged in eigen structure of covariance matrix.
研究单个矢量水听器的噪声协方差矩阵，并给出了浅海近岸水域的试验结果；
Noise covariance matrix of a single vector hydrophone is studied with experiment results in the shallow water.
最后由信号的振幅和噪音协方差矩阵来确定每道的优化加权因子并作加权叠加。
Finally, the optimum weighting factor of each trace is determined with the signal amplitudes and noise covariance.
利用了估计出的用户空间特征构造协方差矩阵进行空间平滑的高分辨DOA估计。
The estimated spatial signature is adopted to construct the covariance matrix for high resolution DOA estimation.
基于转换测量误差协方差矩阵的特征值分解，给出了转换位置测量的时间渐近特性。
Based on the eigenvalue decomposition of the converted measurement error covariance matrix, asymptotic behavior was given about the converted position measurement error.
在不求出DOA的情况下，采用离散傅里叶变换来估计该路径下行信道协方差矩阵。
DFT is used to estimate the covariance matrix of downlink channel of the path, not calculating DOA.
推广的序贯估算法有两种形式：1。积分误差协方差矩阵，2。积分状态转移矩阵。
There are two forms of extended sequential estimation algorithm: 1. integrating error covariance matrix; 2. integrating state transition matrix.
基于用权微扰算法得到的协方差矩阵，提出了用单通道接收机实施空间谱估计测向。
Based on the covariance matrix obtained by the weight perturbation algorithm, we propose to use a single port receiver for spatial spectrum estimate DF.
结果通过固定效应与随机效应及对协方差矩阵的估计，使重复测量数据得以合理的分析。
Results Repeated measurement obtained reasonable results by the fixed and random effects along with efficient estimate of covariance matrix.
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）。
We concluded that the covariance matrix is nonpositive definite, there is either arbitrage opportunity or efficient subset.
分析了用协方差矩阵和自相关矩阵得出的PCA表达是不同的，但是两者的误差是相同的。
We analyses the different result of PCA by using autocorrelation matrix and covariance matrix, and point out that the express of PCA is different but the error are the same.
这带领太减慢在手段和协方差矩阵的适应，因此跟踪仪可以在初始化以后的一些秒钟内无法。
This leads to too slow adaptations in the means and the covariance matrices, therefore the tracker can fail within a few seconds after initialization.
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。
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.
基于阵列协方差矩阵特征分解的测向技术，在天线阵各通道特性不一致时，其性能会急剧下降。
For the eigen-based direction finding technique, array sensor gain and phase uncertainties degrade severely its performance.
正交投影（OP）自适应波束形成算法性能优良，但需要进行复协方差矩阵特征分解，运算量大。
The orthogonal projection (OP) adaptive beamforming algorithm has good performance but it is computationally expensive because of performing eigen-decomposition of the complex covariance matrix.
然后在动静校正后的CMP道集内，采用简捷的算法来估算信号的振幅成分和噪音的协方差矩阵；
Then, the signal amplitudes and noise covariance matrices are estimated by using an algorithm in CMP gather after static and normal moveout.
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.
多重信号分类(MUSIC)算法是通过对数据协方差矩阵进行本征分解获得信号空间谱估计的方法。
MUSIC (MUltiple SIgnal Characterization) is a special spectral estimation method based on the eigen decomposition of the sample covariance matrix.
利用阵列输出协方差矩阵的特殊结构，本文提出一种基于QR分解的高分辨谱估计方法及其改进形式。
In this paper, by using the special structure of the covariance matrix, a fast high resolution method based on QR decomposition is presented.
用天线阵归一化广义阻抗矩阵表示单元互耦，分析了考虑单元互耦效应的自适应天线协方差矩阵的特点。
By using the arrays normalized general impedance matrix to express the mutual coupling between the elements, the characteristics of the covariance matrix of the adaptive arrays are analyzed.
介绍三种对多指标的质量控制方法，第一种方法是用一个标量控制多变量总体的均值向量和协方差矩阵；
Three approaches to Multivariate quality control are introduced. The first approach is to control the mean vector and covariance matrix of multivariate population in terms of one statistic.
用协方差矩阵配合模型的结果显示，精神因素对糖尿病的患病状况不仅有直接影响，同时也有间接影响。
Results of linear structural relation model based on covariance matrix showed that psychological factors affected the development of NIDDM not only directly but also indirectly.
通过对近场空间协方差矩阵进行修正，用重构在相同方位上的远场近似空间协方差矩阵确定声源方位角。
By using the reconstructed far-field approximation space covariance matrix at the same bearings from the revised near-field space covariance matrix, the bearings of multiple sources can be obtained.
采用EWMA模型预测动态变化的方差-协方差矩阵，从实证的角度得到更精准的动态迁移相关系数矩阵。
Using EWMA to forecast the portfolio's dynamic transferred variance-covariance matrix, we can get more reasonable and precise dynamic transferred coefficient matrix.
采用EWMA模型预测动态变化的方差-协方差矩阵，从实证的角度得到更精准的动态迁移相关系数矩阵。
Using EWMA to forecast the portfolio's dynamic transferred variance-covariance matrix, we can get more reasonable and precise dynamic transferred coefficient matrix.
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