搜索资源列表
labview_EMD
- labview编写的EMD分解程序,欢迎有研究的一起讨论。-PC EMD prepared by the decomposition process, welcomed the study together.
EMDduandianchuli
- 利用神经网络分析方法对一个给定信号的两端进行延拓,在数据的两端各得到两个附加的极大值点和两个附加的极小值点.由此利用三次样条函数得到原始信号的上下包络线和平均包络线,实现了准确的EMD分解. -The use of neural network analysis of a signal at the two ends of a given extension to the data obtained at the two ends of the two additional maxima a
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- 基于EMD、关联维数及神经网络理论,采用UbVIEW虚拟仪器开发平台 研制了一套内燃机燃气系统无拆卸故障诊断的虚拟仪器,该系统采用模块化结构, 具有快速可重组的优点,由压电式加速度传感器、光电传感器、电荷放大器、 PCI一6133同步数据采集卡、PC机以及采用LabVIEW开发的测试软件构成,测试软 件包括数据采集模块、故障特征值定义模块以及故障类型识别模块三大部分 -Based on the EMD, and the correlation dimension and ne
emdPinstfreq
- EMD的Matlab编程源码,希望对大家有用-EMD Matlab programming source, the hope that useful
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- 若信号间的能量和频率比例过大,经验模式分解不能分解出正确的单一模式分量。针对这 种状况提出一种经验模式分解与独立分量相结合的信号分析方法。该方法能分离出 IMF 分量的固有特性, 消除EMD分解过后各IMF之间信息混淆问题,恢复各个单分量所丢失的信息特性,改善了经验模式分解能力不足所带来局限性,保障经验模式分解的有效性。-If the signal energy and frequency ratio is too large, the empirical mode decomposit
emd
- 经验模态分解(empirical mode decomposition),通过EMD方法可以把任何一个信号分解为数个固有模态函数和一个残量之和。
EMD
- 整理的网上的EMD 分解的程序,大家共享-online EMD decomposition process, sharing with you
package_emd
- 利用MATLAB实现的EMD,法国大牛数学家的源代码。-MATLAB implementation of the EMD, the French mathematician Daniel source code.
emd
- 非常好用的emd程序,使用时直接引用此函数即可,亲测好用-Emd very useful program, a direct reference to the use of this function, easy to use pro-test
pinpufenxi
- 包含有希尔伯特黄变换的主程序、边际谱的计算方法、并绘制了仿真信号的FFT频谱和功率谱,并调用emd分析方法,绘制了emd分解结果,以及瞬时包络和瞬时频率图,还有Hilbert-Huang谱和Hilbert边际谱- Including the main program of the Hilbert Huang transform, marginal spectrum calculation method, and draw the simulation signal FFT spectrum
xsj
- 关于一个轴承故障分解程序,里面包含小波去噪,重构等,还有EMD模态分解,并且还有各种功率谱仿真图-About a bearing failure decomposition process, which contains the wavelet de-noising, reconstruction, etc., as well as mode decomposition EMD, and there are a variety of power spectrum simulation map
1HIBERT
- hilbert提取心音包络.此程序包含心音信号的低通滤波、小波去噪、EMD分解、希尔伯特黄变换以及心音阈值定位一系列算法。-hilbert extract PCG envelope low pass filter This program contains heart sound signals, wavelet de-noising, EMD decomposition, Hilbert-Huang transform and heart sound threshold locate a se
first_EMD_Process
- 根据黄教授与网上好友的资源改变出来的EMD程序,第一次分解过程,有助于理解EMD-According to Professor Huang with friends online resources out of EMD adaptation program, the first decomposition process, help to understand the EMD.
emd-method
- 经验模态分解(EMD Empirical Mode Decomposition )算法是Hilbert-Huang变换(HHT)的核心算法。经验模态分解(EMD)算法是通过算法过程定义的,而并非由确定的理论公式定义的,所以对其进行准确的理论分析非常困难,我们目前只能借助大量的数字仿真试验不断对其性能进行深入的研究。 EMD算法的目的在于将性能不好的信号分解为一组性能较好的本征模函数(IMFIntrinsic Mode Function ),且IMF须满足以下两个性质: (1)信号的极值点(极
Desktop
- 主要为自定义的一种窗函数,在EMD端点效应中经常用的一种余弦窗函数法-Cosine window functions mainly as a custom window function in the end effect of EMD is often used
qei-V7.2
- 针对EMD方法的不足,在matlab环境中自动识别连通区域的大小,使用起来非常方便。- For lack of EMD, Automatic identification in the matlab environment the size of the connected area, Very convenient to use.
EMD-LMD_Denoising
- EMD或者LMD的能量密度与其平均周期的乘积K值,当K值发生较大变化的时候,证实该分量为白噪声,可以剔除,将剩下的分量进行重构,达到去噪的目的。-The product of K EMD or LMD energy density and average cycle value when the K value was changed greatly, the component for white noise can be eliminated, the remaining component
emd-boundary
- 通过改进镜像延拓法和波形匹配法有效抑制了emd法的端点效应,把改进的代码分享给大家。-By improving the mirror image extension method and the waveform matching method, the endpoint effect of EMD method is effectively suppressed, and the improved code is shared with everyone.
sajss
- 包括脚本文件和函数文件形式,matlab编写的元胞自动机,针对EMD方法的不足。- Including scr ipt files and function files in the form, matlab prepared cellular automata, For lack of EMD.
EMD-Hilbert
- 轴承故障诊断中振动信号EMD分解和Hilbert包络(EMD Decomposition and Hilbert Envelope of Vibration Signal in Bearing Fault Diagnosis)
