kKKKpca

backstepping tutorail

无刷直流电机的单闭环控制，基于matlab与simulink联合仿真(Single closed loop control of brushless dc motor)

本文中有两个函数m文件：model126.m是一个用于预测的完全没有用工具箱函数的补偿模糊神经网络主程序，用于仿真、对比训练数据和网络输出的差异；cb.m是一个非线性系统的数学模型，在model126.m中用“ode45”函数求解这个数学模型后，可以得到105个x1(t)、x2(t)和y(t)，从而建立起一个两输入一输出的补偿模糊神经网络。(failed to translate)

通过光速不变原理介绍相对论时间膨胀公式和长度收缩效应公式，并举例进行了说明。用曲线显示时间膨胀与物体速度的关系，显示长度收缩与物体速度的关系。(Through the principle of constancy of light, relativistic time dilation formula and length contraction effect formula, and examples are described. Curve shows the time dilation and the speed of the object, showing the length contraction and the speed of the object.)

seismic filter with matlab, it s simple application for seismic reflex-ion filtering noise

说明：  能够实现基本的遗传算法，并有相关的应用举例.(it could realise GA and some examples)

Matlab下单字语音识别程序。Readme.txt中有使用方法的详细说明。(Vocabulary speech recognition under the program Matlab. Readme.txt in detail using the method.)

粗糙集理论的属性约简方法及应用研究，很有用的哈！！！！(Rough set attribute reduction method and application, very useful, ha! ! ! !)

Okumura analyzed path-loss characteristics based on a large amount of experimental data collected around Tokyo, Japan. He selected propagation path conditions and obtained the average path-loss curves under flat urban areas. Then he applied several correction factors for other propagation conditions, such as: Antenna height and carrier frequency Suburban, quasi-open space, open space, or hilly terrain areas Diffraction loss due to mountains Sea or lake areas Road slope Hata derived empirical formulas for the median path loss (L50) to fit Okumura curves.

说明：  MATLAB 代码 包括对scm 和scme信道的实现代码，附加端口说明(MATLAB code included scm and scme channel implementation code, additional port description)