basic_models

说明：  讲述谐波检测的方法，利用小波变换的方法检测突变点(About the harmonic detection method using wavelet transform to detect mutations)

Simpson rule Matlab code

This model is very much useful in converting the normal three phase voltages to the corresponding alpha beta components

用matlab中gui做一个普通的科学计算器,可以参考一下(through Matlab gui，a common scientific calculator was made , you can consult it)

adhoc的csma/ca仿真代码，按802.11的标准执行退避机制，接入信道。(the the adhoc' s csma/ca simulation code, perform backoff mechanism in the 802.11 standard, access channel.)

this is simulink model of three phase inverter.. and the simulation results we can verify

基本的常数模算法，用于信道的盲自适应算法。(Basic constant modulus algorithm for blind channel adaptive algorithm.)

对矩形进行小矩形分割，对点，边，单元进行标记，对laplase方程求解(Small rectangle rectangle split points, edges, unit mark of laplase Equations)

西门子 s7-200 samples，包括循环、中断、转换、计时器。表指令等。(Siemens s7-200 samples, including loops, interruption, conversion, timer. Table directives.)

用matlab读取.dxf文件。本站原有代码dxf2coord_20.m中对于圆弧只能读出其圆心坐标及半径，缺少圆弧起始角及终止角，并不能在应用中实际用起来。修改后可以读出圆弧的起始角和终止角(the script can offer start angle and end angle of an arc,which are unable to access in an earlier script dxf2coord_20.m 。)