SOUND-PROCESS

说明：  先把图形改为.bmp形式，用matlab编程的(First graphics changed. Bmp format, using matlab programming)

介绍了SIMULINK仿真的基础知识，利用该软件可以在模型窗口上绘制出所需要的控制系统模型，然后利用SIMULINK提供的功能来对系统进行仿真和分析。(Introduces the basic knowledge of SIMULINK simulation, using the software can draw the window in model needed to control system model, and by using SIMULINK functions to provide the system simulation and analysis.)

小波变换进行变速箱故障诊断 首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)

书籍：《最优化计算方法及其MATLAB程序实现》电子资料(Books: Electronic Material of "Optimum Computing Method and Its Realization in MATLAB Program")

这是关于matlab的financial derivatives toolbox的官方使用指导书(Matlab Financial Derivatives Toolbox Users Guide)

一篇非常帮的文章,在国际刊物IEEE上发表的,关于忙信道估计方面的(A very helping article published in international journals IEEE, and on the busy channel estimation in)

绚丽文字雨，适合培养matlab初学者的学习兴趣(beutiful word rain)

这是一个解决tsp问题的代码，采用遗传的方法进行编程，大大的简化了最优规划迭代的问题，是的程序运行的快速准确(This is a solution to the problem tsp code, using the method of genetic programming, which greatly simplified the problem of optimal planning iteration, the procedure is fast and accurate operation)

compares ed for different wireless channels

在matlab6.5下完成的直流电机闭环调速(Matlab6.5 completed in under the closed-loop DC motor speed control)