查询词典 expected value vector

Based on this result,the intrinsic reasons that singular value vector-based recognition methods have the low recognition accauracy are follows: singular value vectors of arbitrary two face images have not the equivalent basis space in general;there is no one-to-one correspondence between singular value vector and face image;singular value vectors are not separated.

进一步研究发现，导致基于奇异值向量人脸识别算法识别率低的根本原因是：不同人脸图像对应的奇异值向量所在的基空间不一致、奇异值向量与人脸图像之间并不存在一一对应关系、奇异值向量具有不可分割性。

The multi-dimensional signals measured by sensors with a machine working under normal condition or fault condition, can be used to build Q statistic and T^2 statistic respectively to detect the state of the machine. Meanwhile, the feature vector is constructed by the Q value and the T^2 value, the geometrical distance between the normal feature vector and the feature vector H when the machine goes wrong is used to realize the fault location. The results show that the method is feasible.

利用多个传感器测量的异步电机多维信号参量，构建电机在正常工作和发生故障时的Q统计和T^2统计，以实现电机的状态检测；利用Q统计和T^2统计值构建电机的状态特征向量，通过比较度量当前电机的特征向量与电机发生故障时的特征向量H的几何距离来实现电机故障的定位与分离实验证明，该方法可以有效地实现故障的诊断与分离。

Based on hexahedra vector finite element in ANSYS,a new orthogonal-reinforced hexahedra vector element is created by modifying vector basis functions.Due to orthogonality of sampling nodes and orthogonality of integral simultaneously,the new vector element can strengthen diagonal elements' predominance and quicken speed of solving system question group.

在ANSYS采用的六面体矢量单元的基础上，对矢量基函数作了一些增强正交性的修改，使其同时具备采样点正交性和积分正交性，得到了一种新的正交增强六面体矢量单元；这种新单元能增强系统矩阵的对角占优特性，加快系统方程组的求解速度。

Fixed shell type vector hydrophone belong to mechanical type acoustic vector hydrophone, however moving shell type vector hydrophone belong to inertial type acoustic vector hydrophone.

本文研究的是三维同振球型矢量水听器，该水听器由球体外壳、压电加速度计、前置放大器、质量块、填充物、柔性悬置元件和框架组成。

First, the paper reviews the development and research of AC transfer speed system, introduces the different control strategy of transfer speed system for asynchronous motor, and discusses the basic principle of vector control system for asynchronous motor in detail,including the mathematics model and coordinate transformation of asynchronous motor, the fundamental equation of vector control, the estimation method of rotor flux, the system structure of vector control etc. Then, the paper lays stress on the fundamental principle, control algorithm and realization method in TMS320LF2407 of space vector pulse width modulation technology.

本文首先简述了交流调速系统的发展和研究重点，介绍了异步电机调速系统的不同控制策略，详细论述了异步电机矢量控制系统的基本原理：异步电机的数学模型和坐标变换、矢量控制的基本方程式、转子磁链的观测方法、矢量控制的系统结构等，并重点分析了空间矢量脉宽调制技术的基本原理、控制算法以及在TMS320LF2407中的实现方法。

The image information storing means provides a vector data storing means which stores vector data of an original drawing, and a vector data projecting means which projects the vector data to four kinds of coordinate systems.

图象信息存储器提供存储原始绘图向量数据的向量数据存储器，和将向量数据投影到四种坐标系中的向量数据投影器。

In this thesis, we study two problems: the existence results of solutions for generalized vector quasi-equilibrium problems and Hlder continuity of solutions to generalized vector equilibrium problems. The detailed contents are listed as following:In Hausdorff topological vector space, we discuss the existence results of solutions for three types of generalized vector quasi-equilibrium problem (GVQEP1,(GVQEP2) and (GVQEP3), for short respectively.

本文主要研究了两类问题：广义向量拟平衡问题解的存在性以及广义向量平衡问题解的Hlder连续性，具体内容如下：在Hausdorff向量拓扑空间中，讨论了三类广义向量拟平衡问题(GVQEP1)，(GVQEP2)和(GVQEP3)解的存在性定理。

In the thesis, the space vector modulation of MC can be synthesized by fictitious rectifier and fictitious inverter. Two space vector control strategies of MC, which combines output line voltage space vector modulation and input phase current space vector modulation, is adopted.

本文采用输出线电压空间矢量调制和输入相电流空间矢量调制相结合的双空间矢量调制策略，对虚拟整流器和虚拟逆变器的空间矢量分别进行了分析，然后将二者综合得到矩阵变换器的调制方法。

The study establishes the compression of models and algorithms for vector graphics data on different basis, including on the basis of vector graphic factors of B spline curves in predecessors research; on the basis of rectangle graphic factors in main axis mode; on the basis of the application of Hough transform to polygonal line, ellipse and circle, so the study improves the models and algorithms of compression for vector graphic data.The compression for vector graphic data mainly studies the data of storing graphic factors.

本文研究的内容是：根据对以往各种曲线矢量数据压缩模型与算法的研究，建立了基于B样条的曲线矢量图形要素的数据压缩模型和算法；在前人研究的基础上，建立基于主轴模式的矩形图形要素的数据压缩模型和算法；本文作者将Hough变换应用到折线、圆及椭圆图形要素的矢量数据压缩上，在此基础上改进了基于Hough变换的折线、圆及椭圆图形要素的数据压缩模型和算法。

In this paper,a new algorithm is given by means of the complexification of the knots,i.e. the node in the plane is considered as a complex point,the vector as a complex vector,and then based on the construction of vector valued Thiele type rational interpolants and the backward three term recurrence relation for vector valued continued fractions,the recursive algorithm is obtained by appropriate transformation.

文章利用插值型值点复数化的方法讨论并给出了二元向量值有理插值的一种新算法，即把平面上的插值结点视为一个复数，所对应的向量视为一个复向量，使用一元Thiele型向量值有理插值公式的构造方法和向量连分式的向后三项递推关系式以及适当的变换，最后导出了这种递推算法。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"