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decomposition
运行emd,得到输入信号X的固有模态函数(imf),每列代表着信号X的一阶分量,X就是我们采集的信号。
hhtdn是hht去噪的程序,可以不看,仅看emd 和 findpeaks
wvtdn是wavelet去噪程序,如果只是分解信号,仅用下面的语句即可
[C,L] = wavedec(x_noise,dl,wn);
x_noise就是我们采集的信号,dl是分解的阶数,wn是分解的母小波名称(% Empiricial Mode Decomposition (Hilbert-Huang Transform)
% imf = emd(x)
% Func : findpeaks)
- 2021-04-13 22:28:55下载
- 积分:1
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wavelet
小波阈值法去噪的程序,其中有关于信噪比和均方根误差的公式(wavelet denoising)
- 2011-05-24 20:47:45下载
- 积分:1
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ShearletTransform_Matlab
说明: shearlet变换matlab工具箱,可用于图像降噪、融合(Shearlet transform matlab toolbox can be used for image denoising and fusion)
- 2019-03-21 08:42:13下载
- 积分:1
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Denoising
本文介绍了局部放电信号的消噪方法,主要基于改进的小波消噪和序列脉冲分析手段来实现。(This paper presents a de-noising method for partial discharge (PD) online monitoring of transformers. The method is based on an improved
wavelet de-noising approach and a pulse-sequence analysis method.)
- 2012-03-16 11:07:59下载
- 积分:1
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CurveLab-2.1.2
curvelet变换最新工具包,含有快速离散曲波变换的所有形式(包括基于usfft和wrapping和3dfdct)。功能强大,是学习曲波变换的好帮手。(curvelet transform the latest kit, containing the fast discrete curvelet transform all forms (including those based on usfft and wrapping and 3dfdct). Powerful learning curvelet transform is a good helper.)
- 2010-09-16 20:55:56下载
- 积分:1
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wavelet_packet11
小波包分解与重构使用,最佳树使用方法。小波分析理论与MATLAB实现实例。很好的程序,希望对大家有用。(Wavelet packet decomposition and reconstruction using the best tree to use. MATLAB implementation of wavelet analysis theory and examples. Very good program, I hope all of us.
)
- 2021-04-18 20:28:51下载
- 积分:1
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lift97mlhard
个人编写的提升格式97小波去噪,采用硬阈值法,三层分解,包括小波变换,去噪,逆变换三步(Written format of 97 individuals to enhance the wavelet denoising using hard threshold method, three decomposition, including wavelet transforms, denoising, inverse transform three-step)
- 2020-06-29 04:20:02下载
- 积分:1
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down-conversion
基于软件无线电的数字接收机中的下变频结构的程序(Based on software radio frequency conversion program under the digital receiver)
- 2012-05-14 19:58:33下载
- 积分:1
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xiaobo
基于小波变换的信号去噪技术,简单的一维小波去噪程序(Signal de-noising based on wavelet transform technique, a simple one-dimensional wavelet denoising procedure)
- 2014-02-24 12:55:42下载
- 积分:1
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多分辨水印的matlab简单程序
说明: 直接减压到matlab\work目录下就可以看到运行结果了,其中包括了位平面分解,量化嵌入(提取),图像的金字塔分解等的程序块。(decompression directly to the Matlab \ work on the directory can see the results, which included a bit plane decomposition, quantification embedded (extraction), the image of the pyramid decomposition of the block.)
- 2005-11-27 16:49:34下载
- 积分:1