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matlab实现敏感问题的调查设计，包含敏感问题的基本算法设计流程编码例程(matlab sensitive issues in survey design, containing the sensitive issue of the basic algorithm design process encoding routines)

Wavelet denoising For using this code need to use signal toolbox and general toolbox in your matlab In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size 512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of having SNR=20dB by select the suitable value of variance for Gaussian noise formula. Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It means that, we should find the highest SNR value by finding the suitable value for threshold. Then we asked to do the same process but this time using soft thresholding. Finally for the last part of question one, we should compare the results of the obtained SNR with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft thresholding.

基于数控机床进给系统PID参数优化程序PSO。(Feed System Based on PSO PID parameter optimization program CNC machine tools.)

本程序是关于常微分方程初值问题数值解的欧拉算法及线性多步法的matlab代码，对初学者有帮助，例题用的李荣华的微分方程数值解法第一章的习题(This program is about Euler algorithm for numerical initial value problem of ordinary differential equations and linear multistep method matlab code, useful for beginners, examples of Li Ronghua s numerical solution of differential equations of the first chapter exercises )

This is the ebook of signal image processing.

旅行商的问题，用遗传算法来求的最优解，用matlab来实现。(Traveling salesman problem, using genetic algorithms to seek the optimal solution, using matlab to achieve.)

说明：  用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱(Simulink tools with the code (S-Function mode), resulting in a single-path Rayleigh Road, the Doppler spectrum for the classical spectrum)

说明：  matlab程序，对我们计算数据大的科研人员有一定的用处，可以下载试试看!(matlab procedures, we calculate the data into great scientists and researchers who are in some ways useful, you can download to try!)

gabor小波图片纹理特征提取，MATLAB编码，效果不错！(gabor wavelet image texture feature extraction, MATLAB code, good results!)

混沌理论多尺度熵matlab实现函数，内附典型应用文章一篇。(Chaos theory matlab realize multiscale entropy function, enclosing a typical application of the article.)