函数说明

The thesis first probably explains BrushLess Direct Current Motor, and discusses the related control methods, explains the background and Meaning of back electromotive force which is used in the thesis.

本文首先对无刷直流电机进行了概述，并对其相关控制方法进行了讨论，说明本文所采用反电动势法的背景和意义；接着论述了无刷直流电机基本组成环节、基本工作原理、运行特性和传递函数，然后是详述本文研究的重点：基于反电动势法的MATLAB调速系统的仿真以及基于反电动势法的DSP控制系统的实现。

The thesis first probably explains BrushLess Direct Current Motor, and discusses the related control methods, explains the background and Meaning of back electromotive force which is used in the thesis.Then the thesis expounds the basic component parts,the basic running principle,the running characteristic and transfer function of the BLDCM.And then the thesis detailedly dissertates its research pivot: the simulation of BLDCM system in MATLAB based on the method of Back-EMF and the control system of Digital Signal Processor based on the method of Back-EMF.

本文首先对无刷直流电机进行了概述，并对其相关控制方法进行了讨论，说明本文所采用反电动势法的背景和意义；接着论述了无刷直流电机基本组成环节、基本工作原理、运行特性和传递函数，然后是详述本文研究的重点：基于反电动势法的MATLAB调速系统的仿真以及基于反电动势法的DSP控制系统的实现。

A convenient procedure for drawing Bezier curves, after the selected point will be able to draw the corresponding Bessel function, while the location of the point can be adjusted to adjust the curve.

详细说明：一个方便绘出贝塞尔曲线的程序，选好点之后就能画出相应的贝塞尔函数，同时可以调整点的位置来调整曲线。

Achieve a numerical optimization function of the genetic algorithm source code, binary coding achieved, There are detaile...

实现一个函数的数值优化的遗传算法源代码，采用二进制编码实现，里面有详细的说明，非常适合初学者！

Achieve a numerical optimization function of the genetic algorithm source code, binary coding achieved, There are detailed explanations, very suitable for beginners!

实现一个函数的数值优化的遗传算法源代码，采用二进制编码实现，里面有详细的说明，非常适合初学者！

C all function Guinness, and a more detailed introduction of the function.

详细说明： C的所有函数大全，并有较详细的功能介绍。

When to get the coefficients of polynomial directly,the ill-conditioned matrix may be produced and effect the precision of result.Using orthogonal polynomial can avoid this problem.This paper introduces 4 orthogonal polynomial.In our discussion,it is proposed to use Chebyshev polynomial and Legendre polynomial,they are easier to sa...

讨论4种常用正交多项式在拟合卫星轨道与时间函数时的适用性；通过计算实例说明利用切比雪夫多项式和勒让德多项式做数据拟合时具有很高的精度；分析得出评定多项式拟合数据精度的适用阶数，实际应用中可降低工作量，提高计算效率；最后讨论同一多项式阶数下不同历元数对拟合结果的影响。

This is a clear screen method, and a variety of drawing graphics function!

详细说明：这是一个关于清屏的办法，和各种绘制图形的函数！

The continuity of integrand on closed interval is the important condition for the validity of Newton-Leibniz formula .

被积函数在闭区间上连续是牛顿-莱布尼兹公式成立的重要条件，通过削弱该条件使牛顿-莱布尼兹公式的应用范围得到了推广，并举例说明。

It is concluded by the comparison of the Power Spectrum Density Function estimated from design spectra that the spectral energies do not distribute uniformly within the frequency of engineering interest in Chinese codes. The remarkable spectral energies concentrate in the range of low and high frequency.

由各规范设计谱估计的功率谱密度函数的比较说明，我国某些抗震设计规范设计谱给出的设计地震动在工程感兴趣的频率范围内可能存在能量分布不均的问题，低频分量和高频分量与中等频率段相比相对显著。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。