ill-condition
英 [ɪl kənˈdɪʃn]
美 [ɪl kənˈdɪʃn]
n. 病态
双语例句
- The analysis shows that the ill-condition is caused by the linear correlation between some equations in the model.
结果表明，病态性的根本原因在于模型中某些方程间存在严重的线性相关现象。 - And researches the characteristics and applicable situation of many methods to conquer ill-condition problems such as regularization, standardization and splitting elastic modules finite elements.
研究目前岩土工程界提出的多种克服有限元病态问题的方法及各自的特点（如正则化方法、归一化方法及变刚度方法等）。 - However, the ill-condition of the coefficient matrix in that matrix equation is the greatest shortcoming.
矩阵方程系数矩阵的病态性是其最大的缺点。 - But if the surface layer is considered, the traditional finite element methods can not be used, since the ill-condition of structural equilibrium equations produce numerical difficulties.
但是，如果考虑表面层，常规有限元法由于结构平衡方程病态而导致数值上的困难。 - This model avoids basically the defects of numerical ill-condition or singularity which appears usually in the thin plate analysis by the thick plate theory.
该模式从根本上避免了通常以厚板理论分析薄板时出现的数值病态或奇异性等疑难。 - Improving the ill-condition of the best square approach polynomial
最佳平方逼近多项式病态改善 - The Successive Adjustment Elimination ( SAE) Method of Solving some Systems of Linear Equation with Ill-condition
解一类病态线性代数方程组的逐次调整消元（SAE）法 - Blind Separation of Ill-Condition Mixed Sources Based on Generalized Eigenvalue
基于广义特征值的病态混叠盲源分离算法 - Examples show that this method can avoid ill-condition problem of GPS rapid positioning equations and improve the precision of float solution of ambiguity.
计算表明该方法可避免GPS快速定位方程的病态性，提高模糊度浮点解的精度。 - Stability and ill-condition of the regression equation.
回归方程的稳定性和病态。 - In order to solve the ill-conditioned problem in the vehicle crash accident reconstruction model, the effects of the parameter change on the ill-condition of model are analyzed by using the vehicle impact simulation method.
为了解决汽车碰撞事故再现模型病态性的问题，采用汽车碰撞模拟法分析了参数变化对模型病态性的影响； - Analysis and Improvement on the Ill-Condition of the Normal Equations in the Fitting of a Polynomial
多项式拟合中正规方程组的病态分析和改善 - Due to influence by the factors such as water load, temperature etc., hydraulic concrete structures are often operating under ill-condition and aging continuously after construction.
水工混凝土建筑物因所受水荷载及温度变化等条件的不利影响，建成后往往带病运行，运行后又有一个老化过程，因此需要精心地检查、维护和修理才能保证其安全运行。 - The satellite image restoration is an ill-condition problem.
卫星图像的恢复是一个病态逆问题。 - The nature of model ill-condition is studied based on the matrix disturbance theory.
以矩阵扰动理论为基础分析了模型病态性的本质； - It is proposed a new blind separation algorithm of ill-condition mixed sources.
提出了一种新的病态混叠盲源分离算法。 - The property of nonlinear identification equations, can be described by Jacobi matrix, whose condition number is the index of ill-condition of the equation.
雅可比矩阵的性态能够反映非线性识别方程的性态，因此雅可比矩阵的条件数是非线性识别方程的不适定性的度量。 - Research on ill-condition and regularization method of nonlinear identification equation in time-domain
非线性时域识别方程的不适定性与正则化方法研究 - Because the convolution function is of ill-condition, so the result of direct Fourier transformation solution is divergent.
由于卷积方程往往是病态的，因此直接的傅里叶变换求解使结果发散。 - The coefficient matrix is orthogonalized by using polynomial and the overdetermined equations are solved by Householder transformation. The numerical ill-condition is decreased as low as possible, hence the operational accuracy is increased.
利用切比雪夫多项式使矛盾方程组系数矩阵正交化，利用Householder变换直接解矛盾方程组，尽可能降低病态条件数，提高了计算精度。 - For the best square approach polynomial, the article analyses the factors which affect the condition-number of normal equations and combined with numerical trial, puts forward the way of centralizing and compressing, which can availably lower its condition-number and improve the ill-condition of the normal equations.
对于最佳平方逼近多项式，本文通过分析影响正规方程组的条件数的因素，结合数值实验，提出了中心化和压缩的方法，从而能够有效地降低其条件数，改善正规方程组的病态。 - Middle apply blurred mathematic model to transverse direction contrast having avoided subjective the value dividing the healthy target value and ill-condition, the objectivity having laid stress on result.
在横向对比中运用模糊数学模型避免了主观划分健康目标值与病态值，突出了结果的客观性。 - In view of the positioning accuracy measurement index of GDOP in the GPS, analyzed its diagnosis significance of ⅱ ill-conditioned, and indicate the ill-condition essence in the GPS, and provide the important basis for taking the effective action to enhance positioning accuracy.
针对GPS定位中几何精度因子的定位精度度量指标，分析了它的Ⅱ类病态性的诊断意义，揭示了GPS定位中病态性的实质，为提高定位精度采取有效措施提供了重要依据。