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matlab tutorial for basic

　　Matlab GUI图像增强系统 　　。图片变白的意思是光滑处理 　　 　　高斯算子,梯度算子 (Matlab GUI image enhancement system .Pictures turn gray mean smooth processing Gaussian operator, gradient operator )

matlab呈现混凝土孔隙分布，根据孔径大小看分布情况(Matlab shows pore distribution of concrete)

二 维 时 域 有 限 差 分 法MATLAB 代 码(Two-dimensional finite difference time domain method MATLAB cod)

本程序将一随机信号通过瑞利信道产生输出，并用Jakes方法产生单径的符合瑞利分布的复随机过程(This procedure will be a randomly generates an output signal through Rayleigh channel, and use Jakes method produces single-path Rayleigh distribution meet the complex stochastic process)

信号时正弦波加正态零均值白噪声，信噪比10db，信号频率2kHZ，采样频率100kHZ，数据长度N=256。 (1). 用周期图法进行谱估计。(Sine wave signal plus zero-mean normal white noise, SNR 10db, frequency 2kHZ, sampling frequency 100kHZ, data length N = 256. (1) with the periodogram spectral estimation.)

在MATLAB中实现二阶响应曲线绘制的m函数，可以完成线性或非线性二阶响应曲线绘制(In MATLAB to achieve second-order response of the m curve drawing function, can be linear or non-linear response curve of second-order mapping)

Digital Image Processing tool box

说明：  Multirate滤波器设计。模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。(Multirate filter design. Analog bandpass signal frequency range 1KHz-1.1KHz, design a sampling frequency of 8KHz digital spectrum analysis system, required frequency resolution of 0.1Hz.)

用HOMER软件画出的某地区一年每小时负荷数据，并将其导出成文本格式，可以将其导入到MATLAB中供研究人员使用(HOMER software to draw a region with a year hourly load data, and export it to a text format that can be imported into MATLAB for researchers)