s-function

这是一个PCA的练习题，即主成分分析，用于数据将维，将高维大数据降为低维数据。是一种高效率的数据处理方法。(This is a PCA exercises, namely principal component analysis for data-dimensional, high-dimensional data is reduced to a large low-dimensional data. Is a highly efficient method of data processing.)

说明：  三电平SVG仿真模型，运行于simulink环境下，采用dq控制策略(Three-level SVG simulation model, running in simulink environment, using dq control strategy)

It is Radar System design and signal prcessing code based on standard algorithm .this is vey important for biggener those who are working on Radar signal processing area.This code contain various chapter. this is basically chapter No3

该算法是经典的信噪比估计算法——误差矢量幅值法，通过计算接收信号中同相分量和正交分量的二、四阶矩，该算法能够很好的估计信号的信噪比(The algorithm is a classic signal to noise ratio estimation algorithm- the error vector magnitude method, by calculating the received signal with the phase component and quadrature component of the second, fourth-order moment, the algorithm can estimate a very good signal to noise ratio)

VQ的简介与应用说明，并介绍如何在MATLAB中进行仿真应用，值得学习(The introduction and application of VQ, and introduces how to carry on the simulation in MATLAB application, worth learning)

this matlab code is for the FDTD 2D

一维含缺陷光子晶体带隙图,光子晶体由正常材料和不定介质组成。(One-dimensional photonic crystals with defects chart, photonic crystal materials and volatile media by the normal form.)

伺服系统的非线性PID控制，PID-即比例、积分和微分控制，在自动控制系统里有着非常广泛的应用。(Nonlinear PID Control for a servo system)

功能：本程序演示MATLAB常用命令的基本操作 用法：运行该程序后，切换到命令窗口，按提示进行操作(Function: This program demonstrates MATLAB basic operation of the common commands usage: run the program, switch to the command window and follow the prompts)

用布莱克曼窗设计数字带通滤波器,讲解了窗函数的基本原理，设计的过程等(The Blackman window design digital band-pass filter, to explain the basic principles of the window function, design process)