01JDHMKZ

史密斯图(Smith chart)是一款用于电机与电子工程学的图表，主要用于传输线的阻抗匹配上。在复平面上采用双线性变换。实部 r=常数和虚部 x=常数，两族正交直线变化为正交圆并与反射系数|G|=常数和虚部x=常数套用而成。本文档通过MATLAB来编写程序，绘制一个完整的SMITH圆图(Smith figure (Smith chart) is a for electrical and electronic engineering chart, mainly for the transmission line on the impedance matching in the plane bilinear transformation real part r = constant and imaginary part x = constant, two RACES straight for orthogonal round orthogonal changes and and reflection coefficient | G | = constant and imaginary part x = constant apply mechanically and into this document to write the program through MATLAB, draw a complete Smith circle diagram )

空间滤波，matlab编程，介绍了低通滤波器，带通滤波器和高通滤波器。(Spatial filtering, Matlab programming, low-pass filter, band-pass filter and high pass filter.)

采用小波去噪的方法对语音信号进行分解和重构，进而提取有效成分，实现信号的去噪(Wavelet denoising method of voice signal decomposition and reconstruction, and then extract the active ingredients, for signal denoising)

在matlab环境下对chen系统的仿真，希望对于学习者有用(Chen system simulation in Matlab environment useful for learners)

刚好这里有一个现成的 ，自己编程剔除数据异常值。(Here are just a ready-made, its own programming excluding data outliers.)

说明：  上海交通大学非线性动力系统的分岔图绘制实例，非常简单好用。(The example of drawing bifurcation diagram of non-linear dynamic system in Shanghai Jiaotong University is very simple and easy to use.)

求解平面势流下的圆柱绕流问题，基于MATLAB的有限元法编程。(cylinder，finite elements method)

集群通信随机接入仿真，主要是针对集群用户接收与普通用户接收的对比（直方图），集群用户正确接收率、普通用户接收率，总的误判率。(Cluster communication random access, cluster users and ordinary users access contrast (histogram), cluster users receive the accuracy and ordinary users receive the accuracy rate of miscarriage of justice problems.)

warning output functions.

利用Matlab建立主电网发生故障时的交流微电网模型。交流微网运行在480V，从120 kV电网交流输入降压11kV然后走到480V。故障发生在t 10秒。(Using Matlab to establish the AC micro grid model of the fault of the main power grid. AC microgrid runs in 480V, 120 kV AC input to buck 11 kV and then go to 480V. Failure occurred at t 10 seconds.)