特征值

tè zhēng zhí
  • eigenvalue;characteristic value;proper value;characteristic number
特征值特征值
特征值[tè zhēng zhí]
  1. C层为B层各因子的特征值。

    C layer for B layer the characteristic value of factors .

  2. 矩阵AB与BA的特征值问题

    Application on Characteristic Value of Matrix AB and BA

  3. 其中λ为接触矩阵的特征值,c为扩充因子。

    Where λ is the largest eigenvalue of the contact matrix , c is expansive factor .

  4. 在DSP平台实现了火焰判据特征值的提取。

    Eigenvalues of the flame criterions are extracted in the DSP platform .

  5. 用FourierGalerkin方法求解间断特征值问题

    The fourier galerkin method for discontinuous eigenvalue problems

  6. 针状波束智能天线中基于最大特征值的DOA估计

    DOA Estimation Based on the Largest Eigenvalue for Pencil Beam Smart Antennas

  7. 图G的零维数是指图G的谱中0特征值的重数,记为η(G)。

    The nullity of a graph G with order n is the multiplicity of the eigenvalue zero in its spectrum , denoted by η( G ) .

  8. ODE求解器求解高层双肢剪力墙结构稳定特征值问题

    Eigenvalue of stability of coupled shear wall tall building by using ode solver

  9. 讨论n阶方阵A的p级相伴矩阵性质,以及A的P级相伴矩阵特征值与方阵A特征值之间的关系。

    In this paper , first and foremost we study the properties of p-step concomitant matrix Ap for square matrix A , then go further into the eigenvalues relation-ship between matrix Ap and square matrix A. grade .

  10. 通过对相关矩阵进行特征值分解,估计信号子空间和噪声子空间,并利用MUSIC算法估计宽带LFM信号的波达方向。

    Through estimating the signal and noise subspaces with the eigen-decomposition of the correlation matrix , the MUSIC algorithm is used to estimate the DOAs of LFM sources .

  11. 摄动的Poiseuille流的上游特征值的渐近分析

    Asymptotic Analysis of Eigenvalues for Stationary Perturbation of Poiseuille Flow in the Upstream

  12. Hessian矩阵特征值生成的完全非线性抛物方程第一初边值问题

    The First Initial-boundary Value Problem for the Complete-nonlinear Parabolic Equations Generated by Eigenvalues of Hessian Matrix

  13. 其中依据二阶微分处理并且经过偏最小二乘分析提取特征值而建立的BP神经网络和最小二乘支持向量机识别模型效果最好,识别率都达到了100%。

    The recognition rate of the BP neural network and least squares support vector machine model in which second-order differential treatment based on the extraction of characteristic values by partial least-squares analysis reached 100 % .

  14. 进一步,最大邻接特征值小于2的图既能由它的邻接谱确定,又能由它的Laplacian谱确定。

    Furthermore , graphs with largest adjacency eigenvalue less than 2 are determined by their adjacency spectra as well as Laplacian spectra .

  15. 共焦对合系与一类AKNS特征值问题

    Confocal involutive system and some kind of AKNS eigenvalue problems

  16. 计算非对称矩阵广义特征值问题的组合QZ法

    The Combination QZ Algorithm for the Nonsymmetric Generalized Eigenvalue Problem

  17. 本文将问题转化为Jacobi矩阵特征值反问题,给出由(λ,x),(μ,y),m和/或k构造具有正质量和正刚度的真实物理系统的充分必要条件。

    The problems are transferred into inverse eigenvalue problems for Jacobi matrices . The necessary and sufficient conditions for the construction of a physical realizable system with positive mass and stiffness elements are established .

  18. 由给定Q-矩阵可以构造一个可逆Markov链,然后附加一个状态以构造一个新的可逆Markov链,利用附加状态的击中时分布,给出了Q-矩阵第一特征值的具体估计。

    And then we can construct a new reversible Markov chain by appending a state . As a result , its first eigenvalue is estimated by the distribution of the hitting time of the attached state .

  19. 在RGB颜色空间下,提取原棉图像中每个像素的R、G、B分量,采用统计纹理分析方法,计算R、G、B分量的纹理强度信息作为特征值。

    In RGB color space , R , G and B values of each pixel in cotton image are extracted and used to calculate texture intensity values about R , G and B as eigenvalues based on analysis method of statistical texture .

  20. 在利用Lyapunov第一近似定理对非线性系统稳定性问题进行讨论时,需对一次近似微分方程在平衡点处的稳定性进行研究,计算出所有特征值与特征向量;

    When the stability of nonlinear dynamical system is studied based on Lyapunov First Theory , it is necessary to analysis the stability of the linearized ordinary equation with calculating all the eigenvalues and eigenvectors ;

  21. 发展了逆迭代法,求其最小广义特征值,在每一迭代步用Newton非光滑算法求解线性互补方程。

    The inverse iteration method for solving the minimum of the generalized eigenvalues is developed in this paper . At every step of iterations , the linear complementary equations are solved by Newton non-smooth algorithm .

  22. 文中探讨应用电子表格软件EXCEL建立工程项目经济评价指标的数学模型,并进行蒙特卡洛模拟试验,达到求解经济评价指标的概率分布或其它特征值的目的。

    This paper discusses the mathematical model and Monte Carlo simulation of a engineering project 's economic evaluation by Excel software to find the probability distribution of the project 's economic evaluation index and other characteristic values .

  23. 采用动、静态相结合的采样方法考察了传感器阵列的检测能力,在动态实验中通过提取不同的特征值并利用主元分析(PCA)和聚类分析(CA)方法对数据进行了分析和识别。

    Using static and dynamic sampling methods to exam the detection ability of the sensor arrays . Principal Component Analysis ( PCA ) and Cluster Analysis ( CA ) were used in the data analysis and pattern recognition .

  24. 提出了一种基于测试信号法的TCSC功率振荡阻尼(POD)控制器的设计方法,避免了计算量庞大的状态矩阵特征值计算。

    A new test signal method based approach to design power oscillation damping ( POD ) controller for TCSC is proposed , by which the bulky eigenvalue calculation of state matrix can be avoided .

  25. 利用广义特征值反问题理论和有限单元刚度阵和质量阵的分解,推导出特征值λ与逆摄动参数ε(与设计变量x相对应)关系的显式表达的计算公式。

    Taking advantage of the theories of the inverse problem of general eigenvalue and the decomposition of finite element matrices , the explicit expressions of eigenvalue 2 and perturbed parameter e ( correspondence with design variables ) and the computation equations of ~ are derived .

  26. 研究均匀线阵(ULA)波束形成时作者发现,当操纵线阵指向方位不断变化,相关矩阵的最大特征值也随着有规律地变化着。

    Studying the beamforming , we discover that the highest eigenvalue of the correlation matrix changes with beam steering of uniform linear array .

  27. 推导出AOR迭代矩阵£r,w的非零特征值λ,以及其相伴的块Jacobi矩阵特征值μ在p-循环矩阵情况下的新的函数方程。

    Under the circumstance of p-cyclic matrix , a new functional equation is derived for coupling the nonzero eigenvalue λ of AOR iterative matrices £ r , w , with the associated block Jacobi matrix μ .

  28. 该系统提取图像的颜色矩、Hu式不变矩和灰度共生矩阵的统计参数作为系统的三组特征值,采用同步组合的相似性度量结构。

    The system extracts color moments , Hu invariant moments and the grey level grows matrix of statistical parameters of the image as three sets of eigenvalues of the system , it uses similarity measure architecture of synchronous composition .

  29. 为了避免反复计算矩阵的特征值从而节约大量的计算时间,在对电子机柜机架进行有限元分析的基础上,利用ANSYS的模态分析结果对整体机架结构参数的灵敏度进行分析,并结合实例分析计算。

    To avoid repetitively calculating matrix eigenvalue , this paper uses modal analysis result from ANSYS to sensitivity analysis of the frame structural parameter , which is based on the finite element analysis of the electronic cabinet frame , and gives an example .

  30. 位移求逆Arnoldi方法是计算大型非对称矩阵束在给定位移点附近的少数特征值及其相应的特征向量的一种常用方法。

    The shift-and-invert Arnoldi method is popular for computing a few eigenvalues near a given target point and the associated eigenvectors of large nonsymmetric matrix pencils .