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xiaobobianhuanyuyingyong
- 某一直升机齿轮箱上的早期损伤的特征是，在伴随振动信号上产生一个可变周期的非平稳扰动信号。要求按此特征构造一组有物理意义的数据仿真早期故障信号，应用小波变换技术分析故障的特征和发生时刻。-a helicopter gearbox early on the characteristics of the injury, In addition to the vibration signal produced a variable cycle perturbation of non-stationary
Wavelet-Analysis
- 对于非平稳信号的分析不能依靠傅里叶变换，但可以采用时频分析的方法，其中加窗傅里叶变换是最简单的一种。但是，它有很大的局限性：当基本窗函数一旦取定，窗口的时窗宽度和频窗宽度就固定了，不会随时域和频域的位移而变化。-For non-stationary signal analysis can not rely on Fourier transform, but you can use time-frequency analysis method, in which the windowed Four
EMD-matlab
- EMD为经验分解法，对非平稳信号进行分解，应用非常广泛-EMD decomposition method for experience, to the non-stationary signal decomposition, very extensive
Wavelet--analysis
- 小波分析 经典 实用 快速高效 非常适合非平稳信号分析-Wavelet analysis classic practical rapid efficient is very suitable for non-stationary signal analysis
feipingwenxinhaofangzhen
- 非平稳信号的分析仿真的源程序，效果很好，很是实用。-The source of the non-stationary signal analysis and simulation, the effect is very good, very practical.
EMD
- EMD 方法在理论上可以应用于任何类型的信号的分解， 因而在处理非平稳及非线性数据上，具有非常明显的优势,适合于分析非线性、非平稳信号序列，具有很高的信噪比。-EMD decomposition method in theory can be applied to any type of signal, which in the non-stationary and nonlinear data, with a very distinct advantage, suitable for anal
Desktop
- EMD是处理非线性、非平稳性信号的有效的新方法，本程序是振动信号EMD分解程序，可以把振动信号分解成多个IMF分量和一个残余量。-EMD is nonlinear, effective new method of non-stationary signals, this program is the vibration signal EMD decomposition process, the vibration signal can be decomposed into multiple co
HHT
- 希尔伯特-黄变换，用于非线性非平稳信号分析-Hilbert- Huang Transform for nonlinear and non-stationary signal analysis
st
- ST 是由地球物理学家stockwell 编写的非平稳信号从时域到频域的转换工具-a signal analysis tool to transfer the signal form time domain to time-frequency domain
3971002xiaobo
- 小波变换分析，含有小波源程序和仿真主程序，适用于非平稳冲击振动信号的时频特性分析。(The wavelet transform analysis, which contains the small wave source program and the simulation main program, is suitable for the analysis of the time-frequency characteristic of the nonstationary shock vibra
EMD
- 信号处理及希尔伯特变换，可以用于非平稳信号处理(Signal processing and Hilbert transform can be used for non-stationary signal processing)
cyclostationary_toolbox
- 循环平稳信号是一类特殊的非平稳信号，其统计特征具有随时间呈周期变化的特点。旋转机械由于周期运行方式其振动信号具有循环平稳特性，因此利用循环平稳分析方法能够提取出在平稳假设下所不能得到的隐藏故障特征信息，为有效地分离和识别旋转机械早期微弱故障特征提供可能。(The cyclostationary signal is a special type of non-stationary signal whose statistical characteristics have a periodic va