查询词典 overdetermined

By singular value decomposition of the separating matrix, we present a novel independent-component-analysis -based contrast function for BSS, which is a generalization of the existing determined and overdetermined ones.

首先从分离矩阵的奇异值分解出发，提出一种新的基于独立分量分析的盲信号分离对比函数，它是现有的正定和超定盲信号分离对比函数的推广。

The computations required are respectively to solve a decoupled group of overdetermined linear systems of equations, to solve a lower triangular linear system, and to carry out a number of simple subtractions.

对於前两种判别方法，我们也设计了相对应的最佳周期编码序列来减少通道杂讯以及数值误差的影响，以提高通道估测的准确度。

A static mathematical model for the parallel balance calibration is developed. The conclusion that the force Jacobian calibration is to solve least square solution of overdetermined linear equations.

建立了并联天平的静态标定数学模型，得出力雅可比矩阵标定的实质是求解超定线性方程组最小二乘解的结论。

Propose infinite memory method, fading memory method and limited memory method based on recursive Householder transformation for solving overdetermined linear equations in real time.

对线性矛盾方程组的实时求解，提出基于递推Householder变换的无限记忆法、渐消记忆法和限定记忆法。

Characteristic parameters of separating similar frequency sinusoidal signal can be identified by satisfying termination criterion of 2-norm minimum and solving overdetermined equations on observation matrix.

该算法在观测矩阵的基础上，利用2范数最小的终止准则，通过求解超定方程组，辨识频率相近信号组成的特征参数。

Resorting to the relative gradient, we show that the natural gradient algorithm for overdetermined BSS has the same form as that for usual complete BSS.

然后，借助于相对梯度严格证明，完备盲信号分离的自然梯度算法同样适用于超定盲信号分离问题。

In this paper, the functions and the fashions of regularization are discussed when traveltime tomography is reduced to the solution of linear equation system, the functions of regularization include: constraint components which are underdetermined or lie in null space using overdetermined components and all kinds of known information; treat the uneven coverage of rays and the inaccurate datas by damping.

反射地震走时层析最终可归结为线性方程组的求解，本文讨论了在线性方程组求解过程中正则化的作用和方式。正则化的作用有：(1)用超定分量约束欠定分量和零空间分量；(2)用先验信息约束欠定分量和零空间分量；(3)对射线的不均匀覆盖进行阻尼；(4)对数据的不准确性进行阻尼。

Order determination is accomplished in two stages, i.e., the AR order is first determined by the minimum eigenvalue of overdetermined instrumental variable product moment and the MA order is then estimated by the minimum eigenvalues of a covariance matrix derived from the observed data.

该方法将ARMA模型的结构辨识分两步进行：首先利用超定辅助变量乘积矩(0IVPM)的最小特征值确定自回归部分的阶，然后利用协方差矩阵的特征值估计滑动平均部分的阶。

For signals that exhibit a weak or moderate long-term persistence,an OIVPM-MDL structure identification method is proposed based on overdetermined instrumental variable product moment and minimum description length criteria,and for signals with a strong long-term correlation between samples a combinative approach of inverse fractional filtering and the OIVPM-MDL method is also described.

本文研究了滤波分形差分高斯噪声过程的结构辨识问题，针对存在较弱和适中的长期间相关的信号，提出了一种基于超定辅助变量乘积矩和最小描述长度准则的OIVPM－MDL结构辨识方法；针对存在强长期间相关的过程，提出了分形反滤波与OIVPM－MDL的组合定阶方法。

With the frequency and mode shape being regarded as functions of damage parameters, the overdetermined algebraic equations with damage parameters as unknowns can then be constructed by differentiating frequency and mode function on the basis of structure mode finite element formula, the damage parameters of which are obtained via Taylor expansion.

本方法从结构模态有限元算式出发，把频率和振型看作损伤参数的函数，经过泰勒展开获得频率、振型对损伤参数的一阶偏导数，然后构造以损伤参数为未知量的超定线代方程组，求解得到全部损伤参数值。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。