查询词典 lag covariance

Based on the distributed multi-sensor track fusion system, it applies sequence disposal means, multi-sensor track fusion problem with feedback information, on the condition of correlated estimation, is studied, under the rule of minimizing the trace of estimation error covariance matrix, the corresponding fusion algorithm is proposed, also ,the analyse of the simulation is presented.

基于分布式多传感器航迹融合系统，采用序贯处理的方法，研究了相关条件下带反馈信息的多传感器航迹融合问题，在估计误差方差阵迹最小的准则下，导出了相应的融合算法，并进行了仿真分析。

In order to optimize the energy consumption and to prolong the lifetime of networks, two schemes of local tasking node selection in a self-adaptive way are given in the decentralized sensor networks, including the scheme of nearest distance between target and nodes of candidate and the least trace of covariance matrix scheme.

为了优化网络的能耗以延长网络寿命，提出了两种在分布式传感器网络中局部节点自适应选择任务节点[2]的方法，包括目标-候选节点距离最小原则和候选节点协方差矩阵迹最小原则作为任务节点选择调度的两种方法。

The forgetting factor was optimized by reducing the trace of the input error covariance matrix. This factor is able to modify the iterative learning law of control input. The error signal of the feed-forward learning controller was filtered by a zero-phase FIR digital filter.

通过减小系统输入误差协方差矩阵迹的方式得到优化的遗忘因子，来修正控制输入的迭代学习律，同时采用零相位FIR数字滤波器对前馈学习控制器中的误差信号进行滤波处理。

In Chapter 2, the Balanced LS Estimation is defined for the linear model when its error covariance is positive definite or singular. The new estimation as well as the necessary and sufficient conditions is gained for its unbiasedness, efficiency and admissibility.

第2章提出了一般线性回归模型和奇异线性回归模型平衡LS估计的概念，得到回归系数β的平衡LS估计，进而探讨了这种估计的无偏性、有效性和可容许性。

The algorithm transforms the complex covariance matrix into a real matrix using an unitary transformation and then the real matrix is inversed and eigen-decomposed for adaptive beamforming so it has a low computation complexity in comparison with the ESB adaptive beamforming algorithm.

该算法利用酉变换将复协方差矩阵转换为实矩阵，然后对其求逆和特征分解进行自适应波束形成，因此其运算量比ESB自适应波束形成算法小得多。

SPSS 11.5 software was used for statistical analyses. The factors influencing serum HA level were analyzed by double variate analysis of covariance with interaction.

统计分析采用SPSS 11.5软件，采用有交互作用的双因素协方差分析，考察影响血清HA水平的主要因素。

The covariance matrix of receive data is eigendecomposed. and the signal subspace is obtained. Then the channel vector is projected onto the subspace, and more accurate channel vector is obtained. According to the beamforming algorithm, the detection filter coefficients are calculated.

将接收数据的协方差矩阵进行特征值分解，得到信号子空间，将存在估计误差的信道矢量向该子空间投影，就可以得到较为准确的信道矢量，然后利用波束形成计算出检测滤波器的系数。

Instead of statistical description, a feature subspace with the base of some significant eigen vector extracted from covariance matrix is constructed to describe speech feature distribution of speaker. Distance metrics for measuring distance between input feature vector and subspace are also proposed for pattern matching.

说话人语音训练样本提取特征后在语音特征观察空间形成具有一定散度的分布，根据主元分析原理和分布散度提取主要散度本征向量作为基底构成说话人语音特征子空间，并通过测试语音特征矢量与子空间的距离测度进行模式匹配。

Then product between the plant height and stem-diameter of sunflower is marked as the integrated index and regarded as primary variable. Choosing water conter and EC as secondary variable, the integrated index of sunflower is estimated using the three variables CK method that is in the form of covariance function.

将向日葵株高与茎粗的乘积记为综合性指标并视为主变量，选取土壤含水率与EC值为辅助变量，分别运用CK法与普通克立格法(Ordinary Kriging，简记为OK法)对向日葵综合性指标进行预测研究。

Trace element record is formed by the coupling action of early diagenetic perturbation and human pollution, and usually showes the covariance with iron or manganese record.

沉积物微量元素记录是早期成岩改造和人为活动污染综合作用的结果，往往与Fe或Mn的记录呈相关波动。

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。