Tutorial_3

图像分析一般利用数学模型并结合图像处理的技术来分析底层特征和上层结构，从而提取具有一定智能性的信息。(Image analysis)

这个matlab程序可以同时对图像做高斯滤波和中值滤波处理。(The matlab program can do Gaussian image filtering and median filtering.)

转子碰摩非线性计算，可计算出p1,p2,倍周期分岔，混沌等特性(Rotor rubbing the bifurcation diagram matlab source code)

all types of FIR filters.. focused mainly on window method

包含有希尔伯特黄变换的主程序、边际谱的计算方法、并绘制了仿真信号的FFT频谱和功率谱，并调用emd分析方法，绘制了emd分解结果，以及瞬时包络和瞬时频率图，还有Hilbert-Huang谱和Hilbert边际谱( Including the main program of the Hilbert Huang transform, marginal spectrum calculation method, and draw the simulation signal FFT spectrum and power spectrum, and call EMD analysis method, drawn EMD decomposition, and instantaneous amplitude and instantaneous frequency map and Hilbert spectrum and Hilbert marginal spectrum)

说明：  matlab做降水场eof的一个例子，附方法说明(an example of eof with matlab)

自动生成伪随机码，画图说明产生的三组伪机码，将三组伪随机值存放到新矩阵并传送到Workspace中，方便以后调用数据(Automatic generation of pseudo-random code generated drawing shows three sets of pseudo-machine code, the three groups of pseudo-random value is stored into a new matrix and sent to the Workspace, the call data to facilitate future)

MATLAB Simulation of OFDM System (MATLAB Simulation of OFDM System)

数学建模例题集非常有用，数学建模例题集非常有用(mathematical modeling examples set very useful mathematical modeling is very useful examples Set)

说明：  传染病模型是指传染病的基本数学模型，研究传染病的传播速度、空间范围、传播途径、动力学机理等问题，以指导对传染病的有效的预防和控制。常见的传染病模型按照传染病类型分为SI、SIR、SIRS、SEIR模型等。由于2019年末出现的新冠肺炎有一定的潜伏期，与病人接触过的健康人并不马上患病，而是称为病原体的携带者，归为E类。(infectious disease model simulation)