ill conditioned matrix

Ill-conditioned matrix is the important problem to face at Item Parameter Estimation in IRT theory.

病态矩阵是IRT理论中项目参数估计必然面对的问题 本文以 2PLM参数估计为例 ,推导出参数估计迭代公式 ,系统阐述了三种病态控制方法的原理及在编程中数据处理的技巧 。

During three-dimensional temperature distribu- tion reconstruction in furnace using radiative energy images captured by CCD cameras, the problem of solving a large ill-posed matrix equation appears and general methods can not obtain satisfying solutions.

在利用CCD摄像机所拍摄到的辐射能图像进行三维炉膛温度场重建过程中,会涉及到大型病态矩阵方程的求解问题,一般的求解方法得不到满意的结果。

Ill-Conditioned Matrix Control Based on 2PLM Item Parameter Estimation;

基于2PLM项目参数估计的病态矩阵控制

Creating ill-conditioned matrix in GM(1,N) and improve method by principal component;

GM(1,N)模型的病态矩阵的产生及主成分估计改进法

LBP(Linear Back Projection) method which is used in multiphase tomography is adopted to deal with ill matrix and speed up reconstruction.

进而借助于多相流电容成象中的LBP法，处理病态矩阵和提高建象速度。

Research on Equality Constraint Inversion with Ill-posed Constraint Matrix

附有病态约束矩阵的等式约束反演问题研究

A Numerical Value Index Applied to Diagnosis of Ill-conditioning Problems:Orthogonal Degree of Matrices

一种病态问题诊断的数值指标——矩阵向量正交度

The dynamic matrix control algorithm applied to a long time delay unit

动态矩阵算法在大时滞环节中的应用

Dynamic Analogies about Stiffness Matrix and Kinematics of Rigidbody Systems;

刚度矩阵及刚体系运动学的动态模拟

Dynamic Encryptor Based on the Ergodic Matrices over Finite Field;

基于有限域上遍历矩阵的动态加密器

On Research Development and Application of Dynamic Matrix Control;

动态矩阵控制研究进展及其应用现状

Research on Normal Matrix Methodology of Attitude Control for Spacecraft

航天器姿态控制的正规矩阵方法研究

Research on structural modal calculation by decomposing the energy matrix

能量矩阵法求解结构振动模态的研究

A New Ratio Control Algorithm Based on Dynamic Matrix Control

基于动态矩阵控制的比值控制新算法

First, it is assumed that the polytope exists in the system matrix, input matrix and measure matrix of the stale space model.

首先，假定多胞型不确定参数存在于状态空间模型的系统矩阵、输入矩阵和量测矩阵中。

The square matrix is called a diagonal matrix.

该方矩阵称为对角矩阵。

The matrix is defined as the reciprocal of A.

该矩阵定义为A之逆矩阵。

Disease machinery is a lower octave of the matrixes for all intents and purposes.

疾病机械在各种情况下都比矩阵低一个音阶。

Application of Fuzzy Consistent Matrix in Decision-making of Earth Dam Disease Flaw Appraisal

土坝病害评价的模糊一致矩阵方法研究

The core of Markov method is to decide the state transferring probability matrix.

马尔柯夫法的核心是确定状态转移概率矩阵。