Arithmetic1212

MATLAB GUI 实现的一个简单加法器 GUI入门必学(MATLAB GUI Adder for selfstudy)

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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)

小波包分析提取振动信号中的特征频率，关于小波的matlab复合分析，BP神经网络用于函数拟合与模式识别。( Wavelet packet analysis to extract vibration signal characteristic frequency, Matlab wavelet analysis on complex, BP neural network function fitting and pattern recognition.)

说明：  基础的交错并联BUCK电路仿真，可分析各模态的电压电流变化规律(Interleaved parallel BUCK circuit simulation)

this is four opnet modelling language,

matlab 处理数理统计，跟浙江大学数理统计同步(matlab processing, mathematical statistics, mathematical statistics with the synchronization of Zhejiang University)

用wavedec2()函数对b1,b2两幅图像进行小波分解, 采用’db1’小波,分解到第三级 融合两幅图像。(With wavedec2 () function b1, b2 the two images were decomposed using ' db1' wavelet decomposition to the third level fusion of two images.)

用matlab的四阶矩方法进行可靠度解析科学计算(Matlab fourth moment method for reliability resolve scientific computing)

有向无环图程序，程序较为简洁，包含代码和简要说明。(Directed acyclic graph procedure is relatively simple, containing code and a brief description.)