查询词典 lag covariance

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。

The strong coherence between target sources leads to rank loss of covariance matrix of receiving data may, and hence cause incomplete target report.

目标源之间的强相干性，引起接收数据的协方差矩阵的秩亏损，从而可能导致目标漏报。

When the Hamming distance was uncertain of its decision due to the influence of eyelids, eyelashes and iris deformations, mean and variance were extracted from coefficients of multiwavelets transform, and Euclidean distance of covariance reciprocal with weight value was designed as the classifier.

对因为睫毛、眼睑、虹膜变形等影响而不能有效识别的虹膜图像，再对多小波变换系数提取均值和方差作为全局特征，用方差倒数加权欧氏距离进行识别。

This paper studies the application of smart antennas to the downlink in the FDD-CDMA. We estimate thedownlink channel covariance matrix and the relative interference to users of the other cells by using the uplink data., and present a method for downlink beamforming , i. e., we obtain the minimum relative interference to other users while the constanttransmitting power is guaranteed.

本文研究了智能天线在FDD-CDMA中的下行链路的应用，利用上行链路接收数据，估计了下行链路的信道相关矩阵和对其它小区用户的相对干扰总量，给出下行链路的波束形成方法，即在保证一定的有效发送功率的同时，使得对其他小区的用户干扰最小。

We choose an optimal model for functional mapping via comparing various combinations of submodels for mean vectors of QTL genotypes and residual covariance matrix according to statistical power of detecting QTL.

根据QTL的统计检测效率，通过比较关于QTL基因型的期望均值向量和剩余误差的协方差矩阵的子模型的不同组合，来筛选优化的功能定位模型。

Modeling time-dependent expected mean vectors of QTL genotypes and the structure of the within-subject residual covariance matrix are the essence for functional mapping QTL of dynamic traits.

拟合与时间相关的QTL基因型的期望均值向量和剩余误差的协方差矩阵是动态性状功能定位的核心内容。

Besides univariate AR model, this dissertation finally presented our study on a parameter called the local spatiotemporal synchronization index, mainly based on residual covariance matrix of a multivariate autoregressive model.

除了单变数的自回归模型外，在这论文的最后，我们也提出了残余共变异矩阵，系根据多变数的自回归模型所发展出来的一个评估脑电波时空一致性的指标：LSTS（local spatiotemporal synchronization）指标。

A filtered transformation and a stochastic control Lyapunov design method are applied to Marino-Tomei systems driven by Wiener noises of unknown covariance. A parameter adaptive law and a control law are obtained to ensure that the closed-up systems are noise-to-state stable and the tracking error can converge to a small residual set around the origin in the sense of mean quartic value in average.

通过滤波变换，采用随机控制Lyapunov设计方法，对于受方差未知的Wiener噪声干扰的Marino-Tomei非线性系统，给出了参数自适应律和控制律，使得闭环系统成为噪声--状态稳定的，并且跟踪误差的4次均方值在时间平均意义下收敛到一个足够小的区域内。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。