yuyinzengqiang-chengxu

《精通MATLAB GUI设计（第2版）》的源程序(MATLAB GUI)

关于重金属污染应用matlab做图,并有表明功能区划分和污染程度的高低.(On the application of heavy metal pollution matlab to do the diagram, and show that the level of function zoning and pollution levels.)

产生速率160Gbit/s,脉宽1.25ps的一阶高斯脉冲模拟序列（101101）(Production rate of 160 Gbit/s, pulse width 1.25ps first order Gaussian pulse simulation sequence (101101))

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)

说明：  对图像dct系数的分部规律进行统计，绘图。(Dct coefficient on the image for a division of the laws of statistics, graphics.)

Matlab for all simulation of modulation

lansvd分解算法，先对矩阵进行lanczos分解，再进行svd奇异值分解。代码里面含有注释。(lansvd decomposition algorithm, first lanczos the matrix decomposition, then svd singular value decomposition. Code which contains comments.)

利用matlab搭建的光伏电池模型，仿真最大功率点跟踪 (Photovoltaic cells built using matlab model, simulation maximum power point tracking)

在对图像进行处理时需要计算图像的分维数，此函数就是用来计算图像的分型维数(In the process of image processing, it is needed to calculate the fractal dimension of the image, which is used to calculate the fractal dimension of the image)

zileger和getfod函数可以实现对传递函数分析，计算PID的三个参数，便于进行设计PID(zileger and getfod function can be achieved on the transfer function analysis, computation of the three PID parameters, to facilitate the design of PID)