PWM--switching-power-supply

FDTD方法基本讲义,用于学习FDTD基本概念。(FDTD method is basically notes,to learn FDTD bacic.)

Code for Content based image retrieval

MATLAB code for face detection

自适应最优核时频分析程序及相关软件，可用于相关的时频分析(Adaptive Optimal Kernel Time-frequency analysis procedures and related software for the relevant time-frequency analysis)

N-FINDR PPI 1D 2D 3D HFC CCA ILSIA LAMATGP算法的 改进代码(N-FINDR PPI 1D 2D 3D HFC CCA ILSIA LAMATGP improved algorithm code)

灰色预测方法的特点表现在：首先是它把离散数据视为连续变量在其变化过程中所取的离散值，从而可利用微分方程式处理数据；而不直接使用原始数据而是由它产生累加生成数，对生成数列使用微分方程模型。这样，可以抵消大部分随机误差，显示出规律性。(The characteristics of the grey prediction method are as follows: First, it regards the discrete data as the discrete value of the continuous variable in its change process, so that the differential equation can be used to process the data; instead of using the original data directly, it generates the cumulative generation. Number, using a differential equation model for generating a series. In this way, most of the random errors can be offset, showing regularity.)

说明：  3GPP SCM信道模型，根据TS25.996编写(3GPP SCM channel model)

说明：  第2讲 MATLAB程序设计第2讲 MATLAB程序设计(Part 2 Part 2 MATLAB programming MATLAB programming)

说明：  基于小波包的带通滤波器设计程序。给出了小波变换的快速算法和重构算法，讨论了应用小波变换进行信号带通滤波的方法，并通过正交小波包对信号的分解，把频率成分复杂的信号分解到各个频带上，根据需要提取指定频率的信号，然后用小波包重构算法对信号进行重构，实现对信号的提取。(Based on wavelet packet band-pass filter design program. Given the fast algorithm of wavelet transform and reconstruction algorithms are discussed using wavelet transform signal band-pass filtering method, and through the wavelet packet to signals can be decomposed, 把 frequency components of complex signal is decomposed into various frequency bands 上, according to need to extract the specified frequency signal, and then reconstructs the signal reconstruction algorithm to achieve the extraction of the signal.)

说明：  matlab做的直流电动机双闭环调速系统仿真(qqqqqqqqqq)