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thresholdHSI
采用小波变换的方法实现心电信号的滤波,分别使用了硬阈值、软阈值和改进阈值方法,并实现了滤波效果的评价(均方差和信噪比)(Wavelet transform of ECG signal filtering method, respectively, using a hard threshold and soft threshold and improve the threshold method, and to achieve the filtering effect of the evaluation (both variance and signal to noise ratio))
- 2011-07-23 11:03:55下载
- 积分:1
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小波对图像的二次压缩.
说明: 给出了在matlab环境下的源代码,经过了上机调试,可以实现小波变换对图像的二次压缩!(given Matlab environment in the source code, after the Machine, can achieve a wavelet transform of the second image compression!)
- 2005-09-19 10:59:51下载
- 积分:1
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ab1aa8fbd6fc
一篇关于小波变换和希尔伯特变换的文章,处理的是无功功率。小波变换代码和希尔伯特变化代码(A Wavelet transform and Hilbert transform article, dealing with reactive power.Wavelet transform and Hilbert transform code)
- 2012-04-15 12:50:09下载
- 积分:1
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signal-
matlab利用小波模极大值法实现信号的奇异性检测(Signal singularity detection in Matlab)
- 2012-05-15 10:53:20下载
- 积分:1
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FSSTn-master
一种新的瞬时频率估计方法,用到了同步压缩短时傅里叶变换的高阶形式(This MATLAB package is a collection of scripts allowing to generate figures in the paper [1]. This paper puts forward a generalization of the short-time Fourier-based Synchrosqueezing Transform using a new local estimate of instantaneous frequency. Such a technique enables not only to achieve a highly concentrated time-frequency representation for a wide variety of AM-FM multicomponent signals but also to reconstruct their modes with a high accuracy.)
- 2018-05-09 14:44:37下载
- 积分:1
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Wavelet-dec--rec
在理解了离散小波变换的基本原理和算法的基础上,通过设计VC程序对简单的一维信 号在加上了高斯白噪声之后进行Daubechies小波、Morlet小波和Haar小波变换,从而得到小波分解系数;再通过改变分解得到的各层高频系数进行信号的小波重构达到消噪的目的。在这一程序实现的过程中能直观地理解信号小波分解重构的过程和在信号消噪中的重要作用,以及在对各层高频系数进行权重处理时系数的选取对信号消噪效果的影响。(In understanding the basis of discrete wavelet transform basic principles and algorithms, through the design VC program Daubechies wavelet, Morlet wavelet and Haar wavelet transform after a simple one-dimensional signal plus a Gaussian white noise, resulting wavelet coefficients wavelet reconstruction signal again by changing the layers to achieve high-frequency coefficients decomposed noise cancellation purposes. Can intuitively understand wavelet decomposition and reconstruction process and an important role in signal de-noising in the process of implementation of this program, and in the high-frequency coefficients when the weight of the layers selected for signal processing coefficients denoising affected.)
- 2014-07-10 18:16:49下载
- 积分:1
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DoubleDensityWavelet
二维双密度双树(复数)小波变换包。包含基于小波变换的基本的阈值处理运算。(2-D Double-Density Complex Wavelet Transform。There are two versions of the 2-D double-density dual-tree DWT: (1) The 2-D double-density dual-tree real-oriented DWT, which is 2-times expansive, and (2) The 2-D double-density dual-tree complex-oriented DWT, which is 4-times expansive.)
- 2021-04-19 22:38:50下载
- 积分:1
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dwt
离散小波分解,把图像分为高频细节与低频概貌。(Discrete wavelet decomposition, the image is divided into high and low frequency detail overview)
- 2021-04-29 11:38:43下载
- 积分:1
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Windstorm
一个在国外大牛对小波变换的讲解,通俗易懂(A large foreign cattle in explaining the wavelet transform, straightaway)
- 2014-09-03 14:49:34下载
- 积分:1
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waveletdenoise
这是本人的图像处理作业 包括利用各种基于小波的去噪过程,如硬阈值 软阈值等。。内容很丰富哦!相信一定对你有帮助的!(This is my image processing operations including the use of wavelet-based de-noising process, such as a hard threshold, such as soft-thresholding. . Oh, the content is very rich! I am sure will help you!)
- 2009-07-08 13:06:53下载
- 积分:1