多项式模型

Then the Least Square Technique is applied to change the static voltage characteristic curve into polynomial model.

然后利用本文所提出的模型，求出不同电动机比重，不同电压降下的电压静态特性曲线，再用最小二乘法拟合成多项式模型。

Simulation results demonstrate that memory polynomial model is more robust to delay estimation error than the general nonlinear polynomial model.

仿真结果表明，采用记忆多项式模型比一般多项式模型对延时估计偏差有更强的鲁棒性。

A simple polynomial approach for A Class of nonlinear system modeling is presented. By this, the input-output data are firstly changed into [0, 1] by using topological homeomorphism conversion; then an initial polynomial model is selected. The parameters of polynomial model are estimated by using recursion least squares method. A final polynomial model is obtained by repeatedly estimating parameter and eliminating redundant terms.

给出一类非线性系统的实现简单的多项式逼近的建模方法，在此方法中，将输入输出数据通过拓扑同胚变换，变换到[0，1]区间内，用多项式逼近的方法进行建模，对初始给定的多项式模型，通过反复的参数辨识、去除模型中的冗余项，得到非线性系统的多项式逼近模型，再利用拓扑反变换，将数据还原回原始数据区间。

The 3 order Yeoh constitutive model is used to describe the mechanical behavior of carbon-filled rubbers, the aging deterioration rule of carbon-filled rubber is discussed by thermal aging test, and an incomplete quadratic polynomial model is established by Response Surface method, which can describe the variation of performance with aging time and temperature of aged rubber.

用响应函数法建立了橡胶性能随老化时间、温度变化的二次不完全多项式模型，定量描述了材料热老化性能的变质规律。

A method of the order selection of polynomial model for geometric errors modeling for NC machine tool was presented.

提出了一种针对数控机床几何误差多项式模型的阶数选择方法。

Different polynomial coefficient combination of amplitude changes is selected as the input signal to minimize the compensation error. A dynamic coefficient polynomial model is given with simplified coefficient estimation algorithm based on direct learning architecture.

动态系数多项式具有多组系数，随着输入信号幅度的变化，多项式选取不同的系数组合，从而降低非线性补偿的误差；文中讨论了动态系数多项式模型的构造方法，并且给出了基于直接学习结构的简化递归系数估计算法。

This method also can help to simplify the polynomial model.

这种方法有助于多项式模型的化简。

Based on the typical milling force model, the polynomial milling force parameter model is built in the different cutting conditions.

在已有的铣削力模型基础上，建立一种适应多种工况条件下的铣削力系数多项式模型，提出一种方便、有效的多项式模型系数的辨识方法。

A new algorithm based on the expectation-maximization method is proposed to obtain the maximum-likelihood estimation of the polynomial model parameters over the 2-D observed data.

在多项式模型的基础上，结合期望最大化方法的思想，提出了一种利用时频面上的二维数据来获取模型参数的最大似然估计值的算法。

Key words: geomagnetic field model calculation; Taylor polynomial model; spherical cap harmonic model

本文所建立的中国区域地磁场球冠谐模型与泰勒多项式模型具有良好的一致性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失