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This program plots spectrograms (vertical slices of intensities versus frequencies, with slices plotted against time).

rs figure....

matlab设计的FIR滤波器！包括矩形窗、Blackman窗、Hamming窗、Kaiser窗（带通）(Matlab design FIR filter! Including rectangular window, Blackman window, Hamming window, Kaiser window （Bandpass filter）)

AM与FM调制仿真程序，供大家参考！希望对大家学习有用！(AM and FM modulation simulation program, for your reference! We hope to learn useful!)

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出。以第 1 边界条件为例， 用节点处二阶导数表示三次样条插值函数，用追赶法求解相关方程组。通过 Matlab 编制三次样条函数的通用程序， 可直接显示各区间段三次样条函数体表达式，计算出已给点插值并显示各区间分段曲线图。(Cubic spline interpolation function boundary condition for the practical problems cubic spline interpolation required to give the state the endpoint. In the first boundary condition, for example, with a node represents the second derivative of the cubic spline interpolation function for solving the relevant equations with catching method. General Procedure prepared by the cubic spline function Matlab, can directly display each range segment cubic spline function body expression, to the point of interpolation is calculated and displayed for each interval segment curve.)

说明：  TQWT工具箱，可调Q因子小波变换，可用于轴承齿轮故障诊断。(TQWT toolbox, adjustable Q factor wavelet transform, can be used for bearing gear fault diagnosis.)

a Matlab Simulink model of a simple charge controller with the use of hysteresis to solve the problem of oscillations it is suitable to use with renewable energy projects

power active filter simulation

QGA的原代码，你可以很快的上手进行编写你自己所有的程序，如果有什么困难可以联系我，谢谢！(QGA of the original code, you can quickly get started to write all your own procedures, if any difficulties you can contact me, thank you!)

Gaussian filter implementation