基于粒子群算法故障诊断

设计一个低通数字滤波器，满足如下设计指标： 通带截止频率：0.2pi，通带波动：1dB 阻带截止频率：0.3pi，阻带衰减：15dB 要求：采用切比雪夫Ⅱ型滤波器原型，并分别采用脉冲响应不变变换法和双线性变换法进行设计，比较设计的结果，并进行分析 (Design a low pass digital filters that meet the following design specifications: passband cutoff frequency: 0.2pi, pass-band fluctuations: 1dB stopband cutoff frequency: 0.3pi, stop-band attenuation: 15dB requirements: use of Chebyshev filter prototypes with type Ⅱ and pulse response were the same transformation and bilinear transformation method designed to compare the results of the design and analysis)

自适应均衡中LMS算法的仿真程序，输出曲线与均方误差曲线(Adaptive equalization in the LMS algorithm simulation program, the output curve and the mean square error curve)

与传统的小波分解相比，提升小波可以实现整数小波变换，其方法与一般去噪法相同，都是对小波分解的高频系数进行阈值量化来达到去噪的目的。(Compared with the traditional wavelet, lifting wavelet can achieve integer wavelet transform, its the same way as regular de-noising method, are the high-frequency coefficients of wavelet decomposition threshold quantization to achieve the purpose of de-noising.)

This code calculates frame difference to detect moving object in video

说明：  可以进行傅立叶变换的matlab程序 保证可以使用 (Fourier Transform can guarantee that you can use matlab program)

说明：  现代通信系统matlab版书中的matlab源代码(failed to translate)

本文件夹的程序是基于WaveLab802平台作的。 包括以下方法： VisuShrink方法、SUREShrink方法、BayesShrink方法、AdaptBayesShrink方法、 LAWMLShrink方法。(The program in this folder the is based WaveLab802 platform. Including the following methods: The method VisuShrink, SUREShrink methods, BayesShrink methods, AdaptBayesShrink method LAWMLShrink method.)

一个好玩的Matlab游戏，启发你学会编辑代码，趣味练习的帮手(A fun Matlab game, inspired you to learn to edit code, fun exercises helper)

2D脑图的L1小波重建图像，您需要安装Wavelab来实现此代码。(demo_Brain_2D.m demonstrate an L1-wavelet reconstruction of a brain image. )

说明：  计算阶次分析的案例，需要转速信号进行角度域重采样。(In the case of order analysis, the angle domain resampling of speed signal is needed.)