查询词典 covariance matrix

And giving the way to own the biggest coefficient in an inferior expansion; The third is that showing the mathematic expectation for multinomial distribution, covariance matrix, characteristic function as well as generating function; Finally, introducing some application instances about gaining maximum value and some simple applications of multinomial distribution in reality.

并且给出了M项N次多项展开式中最大系数的求法；3。介绍多项分布的数学期望、协方差阵、特征函数以及母函数；最后，介绍多项分布最大值求法的应用事例以及多项分布在实际中的简单应用。

For the clutter power slowly changed environment—range-dependent nonhomogeneity,the weighting covariance matrix estimation algorithm is proposed which is based on the relative distance criterion.

针对杂波功率依距离缓变的非均匀环境，提出了基于相对距离准则的加权协方差矩阵估计算法。

Space-Time Adaptive Processing is a key technology for moving target detection, but nonhomogeneity will cause the covariance matrix estimation error, which substantially results in the STAP performance degradation.

摘要空时自适应处理作为动目标检测的关键技术，但是非均匀环境将会造成协方差矩阵的估计误差，进而严重影响STAP性能。

In this paper, firstly the differences between cylindrical array and uniform planar array are discussed in terms of eigenvalue distribution of the clutter covariance matrix and clutter distribution at range, and the conclusion of space-time clutter spectrum's nonhomogeneity at range for airborne radar with cylindrical array antennas is gained.

该文首先从圆柱型阵机载雷达杂波协方差矩阵特征值分布和杂波功率谱距离向分布两个方面分析了圆柱型阵列与均匀平面阵列之间的区别，得到杂波功率谱随距离变化的结论。

A robust channel balance approach is proposed for a multi channel SAR-GMTI system. Firstly, the modulus normalized vector corresponding to the pixel data vector is constructed and its covariance matrix is formed.

针对强目标信号污染严重影响传统阵列流形校正算法通道均衡性能问题，提出了一种基于雷达回波数据模归一化矢量的自适应通道盲均衡算法。

Mapping ordered eigenvalue points of sample covariance matrix of the observation data onto Hough parametric space,the number of eigenvalues of noises can be estimated by detecting the peak points on Hough parametric space,and thus the number of signal source is determined.

该方法通过Hough变换将观测数据的采样协方差矩阵的排序特征值点投影到Hough参数空间，通过检测Hough参数空间中积累的峰值来估计噪声特征值的数目，从而确定信源的个数。

As to the waveform management of phased array radar, two strategies based on IMM algorithm is studied, which are covariance matrix orthogonal and mutual information methods.

对于相控阵雷达波形管理，研究了两种基于IMM的自适应波形策略：协方差矩阵"正交"法和互信息量法。

The solutions at the equilibrium points of the proposed framework turn out to be globally stable and correspond to several principal or minor eigenvectors of a covariance matrix.

我们提出一个能实现PCA和MCA的统一框架，证明了其全局稳定的最大点，权矢量是输入过程的前p个主分量，而其全局稳定的最小点，权矢量则是输入过程的m个次分量。

In this paper, the authors aim to use quadratic optimization theory in obtaining generalized optimal weights, whereby, the restriction on the covariance matrix is just a mere special case.

本文作者的目标是应用二次优化理论以获得一般情况下的最优权系数，所得结果突破了前述的方差阵的限制。

Simulation results show that due to the errors the rank of the covariance matrix will increase and the SINR performance will descend.

实验结果表明：滤波器相频响应误差会使自相关矩阵的秩增加、SINR性能下降。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了