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此程序用matlab完成了一个小功能，即完成对一个数据文件求最大值和索引！(This program completed with a small matlab function to complete the requirements for a data file and index the maximum!)

this small matlab code is used to design butter worth filter.

這是一本MATLAB程式設計延伸技巧程式書本上的程式碼CH3(一次無法全部上傳會斷線)(This is an extension of MATLAB programming skills in program code books CH3)

里面是一个地震射线追踪的源码程序，还有相关的文档，适合学习地球物理专业的学生。(Inside is a seismic source ray tracing program, as well as related documentation for learning geophysics majors.)

bowen迟滞模型，用simulink搭建，绝对可用，请下载。(bowen model)

说明：  实现k均值聚类算法，本算法可以随机设置初始测试集，也可以随机选取初始类。(K means algorithm The algorithm can set intial data set randomly。also can randomly choice initial data cluster )

matlab程序画图，常见分形图，function cantor(A,B) c=1 p=0 figure hold on plot([A(2) B(2)],[A(1) B(1)], r* ) while norm(A(1,:)-B(1,:))>=1 C=[] D=[] for i=1:size(A,1) a=A(i,:)+(B(i,:)-A(i,:))/3 b=A(i,:)+2*(B(i,:)-A(i,:))/3 C=[C A(i,:) b] D=[D a B(i,:)] end A=C B=D p=p+1 (matlab program drawing, common fractal images function cantor(A,B) c=1 p=0 figure hold on plot([A(2) B(2)],[A(1) B(1)], r* ) while norm(A(1,:)-B(1,:))>=1 C=[] D=[] for i=1:size(A,1) a=A(i,:)+(B(i,:)-A(i,:))/3 b=A(i,:)+2*(B(i,:)-A(i,:))/3 C=[C A(i,:) b] D=[D a B(i,:)] end A=C B=D p=p+1 )

Description: The function is called upon as follows: a = bemd(im1) im1 -> Image a(:,:,1) => IMF 1 a(:,:,2) => IMF 2 a(:,:,3) => IMF 3 a(:,:,4) => Residu

建立包含直驱型风力发电机、单级式光伏发电系统和储能蓄电池的风能与光伏混合微电网模型。混合微电网在并网运行时，通过储能蓄电池平滑风能和光伏电源的输出功率波动，维持公共连接点电压。A wind power and photovoltaic hybrid microgrid model including direct drive wind turbine, single-stage photovoltaic power generation system and energy storage battery is established. When the hybrid microgrid is connected to the grid, it can maintain the voltage of the common connection point by fluctuating the output power of the energy storage battery smoothing wind energy and the photovoltaic power.(A wind power and photovoltaic hybrid microgrid model including direct drive wind turbine, single-stage photovoltaic power generation system and energy storage battery is established. When the hybrid microgrid is connected to the grid, it can maintain the voltage of the common connection point by fluctuating the output power of the energy storage battery smoothing wind energy and the photovoltaic power.)

说明：  一个简单的代码，用于说明OFDM发送器和接收器的操作，包括RF上变频和下变频；(A simple code to illustrate the operation of an OFDM transmitter and Receiver including RF upconversion and down-conversion ;)