病态性,ill-condition英语短句,例句大全

病态性,ill-condition
Ill-conditioning病态性
1.In order to solve the problem of both ill-conditioning in the normal matrix and outlier existing simultaneously in Gauss-Markov model,a new method called outlier detection based on ridge estimation is proposed by combining the advantages of the ordinary ridge estimation and outlier detection.针对测量平差Gauss-M arkov模型中法矩阵的病态性和观测值的粗差同时存在问题,把岭估计和粗差探测两者的优点结合起来提出了基于岭估计的粗差探测方法。
2.In this paper,a new biased estimator-double k type ridge estimator(DKRE) is proposed to improve some existing biased estimators based on the peculiarity of ill-conditioning of the design matrix.针对GPS快速定位中设计阵病态性的特点,文中对现有的有偏估计进行了改进,提出了一种新的有偏估计———双k型岭估计。
3.Generally,the ill-conditioning problem not only exists in Geodesy,such as global positioning system(GPS) data processing, geophysical inversion, observation deformation analysis,etc,but also its effects are very serious.在GPS数据处理、地球物理反演、形变观测分析等大地测量领域,系统的病态问题是常见的,并且病态性的危害作用非常严重。
3)ill-conditioned['ilk?n'dif?nd]病态性
1.Research on Ill-conditioned Problem in Grey Predictive Control Model;灰色预测控制模型的病态性研究
2.This paper studies the parameters and ill-conditioned problem of GM(2,1)model in oil water well control based on multiply transformation on original sequence.研究了原始序列的数乘变换对油水井控制中 GM( 2 ,1 )模型参数和病态性的影响问题 ,建立了数乘变换值分别与 GM( 2 ,1 )模型系数矩阵条件数、模型参数间的量化关系式 ,得到了 GM( 2 ,1 )优化模型完全适用于负数据序列建模、原始序列的初值化或均值化等处理不会影响系统的预测精度和误差、选择适当的数乘变换可降低模型的病态性等重要结
3.The ill-conditioned problems are widely being in the Geodesy and because of it accuracy of the parameters obtained by square estimation become worse,sometimes even distorted.由于病态性的存在,致使按最小二乘法解算参数估值精度变差甚至发生扭曲,最终使所得结果不能使用。
4)morbidity[英][m?:'biditi][美][m?r'b?d?t?]病态性
1.Research on morbidity problem of accumulating mothod GM(0,N) model;累积法GM(0,N)模型的病态性研究
2.Research on morbidity problem of accumulating method GM(2,1) model;累积法GM(2,1)模型及其病态性研究
3.Based on mathematical modeling theory in few information of uncertain system, this paper researches the quantitative relation between raw data s multiple transformation and parameters and predictive values of non-equal time-interval GM(1,1) model, and discusses the morbidity influence of non-equal time-interval grey predictive controll.复杂系统中存在着大量的非等间隔数据预测和控制问题,而数乘变换是建模中重要的数据变换技术,本文根据少信息不确定性系统的数学建模理论,研究了原始数据的数乘变换与非等间隔GM(1,1) 模型的各参数和预测值的定量关系,讨论了数乘变换对非等间隔灰色预测控制模型的病态性的影响, 得到了数乘变换下非等间隔GM(1,1)模型的参数辨识和预测误差,获得了使模型条件数达到最小的数乘变换值。
5)Ill-posed病态性
1.Ill-posed problems of the demodulation equationsIn the demodulation course,the cause of ill-posed problems of the equations is analyzed and further researched.解调方程组的病态性问题在解调过程中,分析方程组病态性产生的原因,并进行深入探讨,其中包括子波的形状、子波的个数和附加波对解调方程组病态性的影响。
2.The singular value decomposition technology was used to analyze the ill-posed problem of OEIT,the condition number of Jacobian matrix was 2.采用奇异值分解技术分析开放式电阻抗成像的病态性,Jacobian矩阵的条件数是2。
6)ill-posedness病态性
1.In this paper,the behavior of the ill-posedness of the anisotropic diffusion is analyzed through the energy function.针对各向异性扩散方程中的“病态性”问题,从能量函数的角度对其原因进行分析,并依据稳定性的要求选择合适的扩散系数。