在多元回归中,主要介绍偏最小二乘方法。
At multiple regression, we mainly introduce the method of partial least-squares.
本文讨论了多项式微分的改进型最小二乘方法。
The paper discusses the improved least square method for polynomial differentiation.
给出了迭代最小二乘方法的数学模型和解算途径。
The mathematical model and computing method of theory of recursion least squares is given.
该算法利用QR因式分解以解决最小二乘方探测问题。
The algorithm relies on a QR factorization approach to the least-squares detection problem.
本文介绍了一种基于最小二乘方法的同步电机参数识别的方法。
In this paper, a parameter identification method based on least square method for synchronous machines is presented.
本文就实际园柱体的测得数据,推导了它的最小二乘方轴线方程。
On the basis of the measured data for the actual cylinder, a least square axis equation is drawn in this paper.
文中还对间断函数进行了全相位最小二乘方的逼近,逼近误差小于传统方法。
All Phase least square approximation to the discontinuous signal is also introduced with less error than the traditional method.
文中提出的图像复原算法就是基于约束最小二乘方法的,并对其进行了改进。
The method posed by this article is based on constrained least square methods, hut it is improved.
提出了一类非整数阶系统的频域辨识最小二乘方法,给出了算法的详细推导过程。
A least squares method for identification of non - integer order systems is introduced into frequency domain and an algorithm is presented.
一个大型电力系统最小二乘方准则的状态估计,由于其阶数很高而出现病态倾向。
When the least square criterion is applied to the state estimation of a large scale power system, high order of the equation will make it ill-conditioned.
为此,我们利用最小二乘方法计算信号(或残差信号)在相应子空间上的正交投影。
Therefore, the LSM algorithm is used to compute the orthogonal projection of the signal or residual signal onto the corresponding subspace spanned by these atoms.
理论分析和应用实例表明,几何距离最小二乘方法同样也是一种比较有效的参数估计方法。
Theoretical analyses and applications all show that the geometric distance least square method is also a good and effective parameter estimation method.
提出了在洪水频率计算时适线法中最小二乘方的一种新的求解方法,并对其特性进行分析。
A new method of least square is raised in curve fitting of flood frequency calculating and its specific properties are analysed.
另外,再次通过正交最小二乘方法确定模糊模型的结论参数,实现模糊模型结构和参数的优化。
In addition, the conclusion parameters of fuzzy model are confirmed by the orthogonal least square in order to optimize the structure and the parameters of fuzzy model.
这样得到的结果与原来把电力系统状态估计作为一个最小二乘方问题处理所得的结果是一致的。
It has been verified that the partitioned state estimate is identical with the usual full least square estimate.
采用解析计算的形式预测弹头落点,利用非线性最小二乘方法搜索最优横向力,从而获得制导指令。
The analytical calculation of form, using penetration forecast method of nonlinear least squares search optimal lateral force, thus guidance commands was gain.
介绍了图像退化模型和约束最小二乘方法(包括参变维纳滤波方法和平滑约束最小平方滤波方法)。
The degradation model and the image restoration are introduced by the constrained least square methods including the parametric Wiener filter and the smoothing constrained least squares filter.
针对强旁瓣目标对运动目标检测的不利影响,提出了一种有效估计强旁瓣目标频率的最小二乘方法。
A least-squares method of estimating the frequency of the target with strong sidelobe to handle the adverse influence of such targets on moving target detection is presented.
用实验方法确定经验公式时,回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
主元回归和部分最小二乘方法能克服批次内不同阶段的控制量存在的相关关系从而得到更准确的模型。
The regression analyses to correlate the control actions with the results for various stages of a batch to obtain more accurate models.
由于工具误差分离存在着很强的复共线性,传统的最小二乘方法与主成分方法不能很好的解决这一问题。
Because the separation for GISE is an almost singular regression problem, the classic least square method and principal component method are not satisfactorily for solving the problem.
如果其呈现线性关系,测试结果应该通过适当的统计学方法(例如,以最小二乘方来计算回归线)来确立。
If there appears to be a linear relationship test results should be established by appropriate statistical methods (e. g. by calculation of a regression line by the method of least squares).
在过去的三十年中,数字信号处理和数字通信领域中采用的主要优化算法是最速下降方法和最小二乘方法。
In the past thirty years, the work-horse algorithms in the field of digital signal processing and communication have been the gradient descent algorithm and the least square algorithm.
本文基于最小二乘方法和主成分估计思想,构造了一种丢失数据的稳健修复算法,并可对失真数据予以修正。
Based on the least square method and main elements analysis, this paper proposed a robust algorithm to repair the lost and distortion data.
另外,采用阻尼最小二乘方法,利用全球地震层析成像资料和大地水准面异常资料联合反演了三维全球地幔密度异常。
Moreover, The authors inverted three dimensional global mantle density (anomaly) combining geoid data and seismic tomography data by means of damping least square method.
在采用信号增强技术降低观测噪声后,利用总体最小二乘方法估计被测信号参数可以得到比传统方法更好的分析结果。
After reducing the noise by the technique of signal enhancement, the more extract approximation results than traditional approach can be achieved with the TLS method.
传统的金融时间序列认为趋势项是确定性的函数,本文对此提出一种新的模型,并且设计了分段最小二乘方法和两个算法提取出趋势路径。
For this problem, this paper develop a new model and design the piece wise least square method and two algorithms to strip off the trend.
仿真实验表明该算法能够将航迹平均周期提高一倍,在航迹中断期间对比最小二乘方法能够较大幅度地减小跟踪位置和速度的均方根误差。
Simulation results show that the proposed algorithm doubles the mean track life and yields significant improvements in position and speed RMS errors during the track breakage.
该技术通过平移实物参考面,测得其上位相分布,利用其位移距离与位相增量之间的关系,以最小二乘方法计算位相差与物面深度之间的映射关系。
According to the shifted distance and the phase increment, the mapping relationship between phase difference and depth of object can be determined by a least squares method.
该技术通过平移实物参考面,测得其上位相分布,利用其位移距离与位相增量之间的关系,以最小二乘方法计算位相差与物面深度之间的映射关系。
According to the shifted distance and the phase increment, the mapping relationship between phase difference and depth of object can be determined by a least squares method.
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