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使用小波包变换分析信号的MATLAB程序(The use of wavelet packet transform analysis of signals in MATLAB program)

自己写的，很有心得，还往大家多多支持，谢谢！(Write your own, very learned, but also to the generous support of everyone, thank you!)

时频分析，窗宽对信号恢复的影响 以及差值分析(Time-frequency analysis, the impact of the window width and the difference signal recovery analysis)

改进的NHT程序，可以对数据进行归一化，效果较以前的好(improved NHT method)

粒子群优化算法 一种经典的启发式算法(Particle swarm optimization algorithm, a classic heuristic algorithm)

Alamouti的matlab代码，适合初学者(Alamouti)

说明：  用MATLAB语言实现MFCC特征参数提取(Using MATLAB language MFCC feature extraction)

一步步引导新手设置CP5611卡，有图片提示，非常详细。按说明做都能成功。(CP5611)

设计一超前校正环节，使得超调量为20 ，调节时间为1s。系统单位斜坡稳态响应误差为10 。并作出校正前后后的系统单位阶跃响应时域曲线加以比较。(Design a lead correction link, so the overshoot is 20 , adjust the time of 1s. Steady-state response of the system unit error of the slope is 10 . Made before and after correction and after the system unit step response curves are compared in time domain.)

ARROW (5/20/2009) Draw a line with an arrowhead. ARROW(Start,Stop) draws a line with an arrow from Start to Stop (points should be vectors of length 2 or 3, or matrices with 2 or 3 columns), and returns the graphics handle of the arrow(s). By itself, ARROW will use the mouse to allow selection.