fdvolfft

电力系统继电保护故障启动程序，matlab编写的程序(Power System Fault launcher, matlab program written)

有关matlab语言编写的图形图像处理的基本程序，适合入门者学习参考！(On the matlab graphics languages the basic image processing procedures, suitable for beginners to learn the reference!)

《智能控制》第一版（刘金琨著）第十章程序源码(" Intelligent control" the first edition (Liu Jinkun a) Chapter X program source code)

matlab code for pitch of speech signal

概率潮流使用matpower编写程序的基本步骤(The basic steps of probabilistic power flow by using matpower to write programs)

说明：  编写程序建立套管换热器数学仿真 模型，并计算换热器两侧流体沿程温度、对流换热系数、雷 诺数与热流密度的变化规律。(The mathematical simulation model of casing heat exchanger was established by programming, and the variation of temperature, convective heat transfer coefficient, Reynolds number and heat flux along the two sides of the heat exchanger were calculated.)

用matlab编写的单相半控整流器，适合初学者(Prepared using matlab single-phase half-controlled rectifier, for beginners)

采用带宽为3，中心频率为3的复morlet小波对示例信号进行了分析，并绘出时频图。(Using bandwidth of 3, center frequency is 3 complex morlet wavelet to sample signal is analyzed, and draw the time-frequency diagrams.)

Transform two case , the one case 1 is Fourier the 8X8 size and then use the mask to clear the high fitter . the second case 2 is cosine the 8X8 size and then use the mask to clear the high fitter .

离散傅里叶变换，即DFT, 注意：FFT在matlab里有现成的函数可以用，它只是DFT快速实现的一种方法而已。(DFT： Discrete Fourier transform. )