This paper describes a method for extracting the aerodynamic derivatives of a helicopter from flight data by means of low pass filtering, Kalman filtering and least square techniques.
本文主要介绍利用低通滤波、卡尔曼滤波及最小二乘法求取直升机气动导数的方法。
An approach, together with a demonstration on the active cable-mesh reflector, using the least square optimization model is presented to solve the initial equilibrium problem of cable-mesh.
结合大射电望远镜中索网主动反射面实例给出了一种基于最小二乘优化模型求解索网结构初始平衡状态的方法。
The parameters are estimated with non linear least square method.
模型中的参数估计采用非线性最小二乘法。
It is based on the numerical integration and matrix least square method.
它是基于数值积分和矩阵最小二乘法的数值方法。
The paper discusses the improved least square method for polynomial differentiation.
本文讨论了多项式微分的改进型最小二乘方法。
The parameters of the kinetic equation were estimated by the linear least square method.
动力学方程中的参数用线性最小二乘法估计。
Besides, the radius precision is accomplished by least square method with radius constraint.
基于设计半径已知条件，利用半径约束最小二乘法提高测量精度。
Then all data were analyzed by principal component regression (PCR) and partial least square (PLS).
采用主成分回归（PCR）和偏最小二乘法（PLS）对试验数据进行了多元统计分析。
The weighted least square iteration computational equations and error estimate equations are given.
给出了加权最小二乘法的迭代计算公式和误差估计公式。
However we want to get the least absolute value of frequency deviation not the least square sum of it.
但是实际需要的是使频率偏差的绝对值最小而不是频率偏差的平方和最小。
The regression method of rheology parameter for non-Newtonian fluid is obtained by the least square method.
同时根据最小二乘法原理得出确定非牛顿流体流变参数的回归分析方法。
The changes of frequency with the temperature are analyzed and studied by applying the least square principle.
应用最小二乘原理，对频率随温度的变化作了定量的分析和研究。
A kind of generalized least square error robust self tuning controller algorithm with model reference is proposed.
本文提出一种具有参考模型的广义最小方差鲁棒自校正控制算法。
This paper introduces and analyzes the application of the least square method and Kalman filter in time prediction.
介绍和分析了最小二乘和卡尔曼滤波方法在时间预报中的应用。
In this paper, a parameter identification method based on least square method for synchronous machines is presented.
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。
The least square method is applied to study the deformation tendency and calculate the mean annual rate of deformation.
用最小二乘法拟合了库区地壳形变多年的变化趋势，计算了多年平均形变速率。
Several approximate formulas are given for residual analysis of the least square estimator in nonlinear regression model.
本文给出了若干近似公式，以分析非线性回归模型的最小二乘估计的残差。
The least square conjugate gradient and odd values decomposition method also can be used to perform tomographic inversion.
研制的最小平方共轭梯度算法和奇异值分解法也可进行同样的层析反演。
The least square method about velocity is used usually to solve the essential factors of target motion in submarine operation.
用速度平差法求解目标运动要素是潜艇作战中常用的目标运动要素求解方法。
A new method of least square is raised in curve fitting of flood frequency calculating and its specific properties are analysed.
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。
All Phase least square approximation to the discontinuous signal is also introduced with less error than the traditional method.
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。
A novel prediction model for remaining capacity of batteries based on least square support vector machine (LS-SVM) was proposed.
提出了一种最小二乘支持向量机的电池剩余电量预测新模型。
On the data including the discrete points, least square estimation can not control the strong error affecting the regression curve.
在含有离群值的情况下，分析了最小二乘估计不能克服粗大误差对回归曲线的影响。
A series of theoretical tests say that this new method is applicable to the least square deconvolution of mixed-phase unknown pulse.
文中给出的一系列理论试算结果表明，该方法适用于混合相位未知脉冲的最小平方反褶积。
On the basis of mathematical description for least square (LS) estimation, an iterative equation for LS state estimation is established.
在对最小二乘（LS）估计进行数学描述的基础上，建立了一种LS状态估计的迭代方程。
By means of the damp least square method and singular value decomposition method, the misalignment of optical system could be calculated.
采用阻尼最小二乘法与奇异值分解的方法来求解失调量。
The paper adopted a dynamic Weighted least square method replacing the traditional least square method to compute the area precipitation.
在进行面雨量的计算时，采用动态加权最小二乘法代替了传统的最小二乘法。
The validity, features and adaptive region of these models are analysed through test, and compared with the least square regression model.
通过实验分析这两种模型的有效性、特点及适用范围，并与常用的最小二乘回归模型相比较。
The superiority of the classical least square method is lost due to the morbid of designed matrix in large-type linear regression analysis.
在大型线性回归分析中，由于设计矩阵的病态使得经典的最小二乘法失去了优良性。
After the system error is estimated and deducted, the random error is effectively reduced by three channels polynomial least square filter.
在估计并扣除系统误差之后，进行三通道最小二乘多项式滤波以更有效地抑制随机误差。
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