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非常不错的QPSK在matlab中的仿真教程，文档中包含相关的所有代码！(Very good QPSK Simulation in matlab tutorial document contains all the code!)

关于图像滤波的一个实例应用，教会你如何通过傅里叶变换滤除单频噪声(An example of image filtering applications, teach you how to filter out single-frequency noise in Fourier transform)

bi-linear Filter. Circular Convolution of two sequences using DFT and IDFT. Discrete Fourier Transform (DFT) of the sequence

小波分析，基于DWT的故障信号特征提取，可以画出条形图，多层分解(Wavelet analysis, DWT-based feature extraction of fault signal can draw bar charts, multi-decomposition)

基于动态切换函数的动态滑模控制，二阶系统仿真(Dynamic sliding mode control based on dynamic switching function，The second order system simulation)

说明：  基于MATLAB的BP神经网络非线性映射能力实现图像压缩。(MATLAB Based on BP neural network nonlinear mapping capability for image compression.)

说明：  由Cranfield大学的CaoYi教授编写的数独游戏。数独是风靡全球的智力游戏，本代码采用matlab实现基本的数独游戏功能。(By the Cranfield University, prepared by Professor CaoYi Sudoku. Sudoku is a popular puzzle game around the world, the code using matlab to achieve the basic function of Sudoku game.)

关于小波去噪的程序，分为几种情况，适用于消除语音信号噪声(Wavelet Denoising of the program is divided into several cases for the elimination of the speech signal noise)

单相全桥逆变器模型，测试OK，直接运行，需要的参考(Single phase full bridge inverter model)

这是MATLAB的统计工具箱的应用，数模培训的必要内容(This is the MATLAB statistical toolbox of applications, several essential elements in training mode)