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matlab小波变换程序
小波变换(wavelet transform,WT)是一种新的变换分析方法,它继承和发展了短时傅立叶变换局部化的思想,同时又克服了窗口大小不随频率变化等缺点,能够提供一个随频率改变的"时间-频率"窗口,是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征,能对时间(空间)频率的局部化分析,通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节,解决了Fourier变换的困难问题,成为继Fourier变换以来在科学方法上的重大突破。(Wavelet transform (WT) is a new transform analysis method. It inherits and develops the idea of localization of short-time Fourier transform and overcomes the shortcomings that window size does not vary with frequency. It can provide a frequency-dependent The Time-Frequency window is ideal for time-frequency analysis and processing of signals. Its main feature is that by transforming some features that can fully highlight some aspects of the problem, the localization of the time (space) frequency can be analyzed, and the signal (function) can be gradually and multi-scale refined by the scaling operation, finally reaching the high frequency Time subdivision, frequency subdivision at low frequencies, can automatically adapt to the requirements of time-frequency signal analysis, which can focus on any details of the signal to solve the difficulties of Fourier transform has become a major breakthrough in the scientific method since Fourier transform.)
- 2018-03-05 14:32:13下载
- 积分:1
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normthresh_jp
NormThresh of wavelet coefficient
- 2012-08-27 16:08:40下载
- 积分:1
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denoising
该程序主要是通过小波变换来实现对心音信号的去噪处理(The program is mainly achieved by wavelet denoising of heart sound signals)
- 2011-11-27 09:47:43下载
- 积分:1
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CSBP_matlab
用于压缩感知的基追踪(Basis pursuit)算法,程序非常详细,仅供参考(Basis Pursuit (Basis is pursuit) algorithm for compressed sensing.)
- 2012-06-12 17:25:04下载
- 积分:1
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wpdec2--function
各种小波包函数的matlab 实现,对理解小波包很有用处(Various wavelet packet function of matlab, is very useful to understand the wavelet packet
)
- 2020-09-14 11:47:57下载
- 积分:1
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EMD_EEMD_VMD
说明: 可用于信号的EMD、EEMD、VMD分解,里面都加了自己的注释,通俗易懂(It can be used for signal EMD, EEMD, VMD decomposition. Because the algorithm adds its own annotations, it's easy to understand)
- 2017-07-08 09:20:13下载
- 积分:1
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qqq
小波变换图像增强程序。以及非线性的处理程序。+MATLAB编译环境(Wavelet transform image enhancement program.And non-linear handlers.+MATLAB compilation environment)
- 2018-07-27 17:13:31下载
- 积分:1
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phase
希尔伯特变换和小波变换检测相位差的matlab程序和一些资料(Hilbert transform and wavelet transform to detect the phase difference matlab program and some of the information)
- 2012-10-20 19:46:59下载
- 积分:1
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labview-wavelet-analysis-help-file
在labview中进行小波分析程序设计,内容最全、最好的文件,参照本文件可以直接一步步编写小波分析程序,适合初学者。(The labview wavelet analysis program design, the most comprehensive, best file reference in this document can step directly
Step preparation of a wavelet analysis program for beginners.)
- 2012-02-08 09:10:43下载
- 积分:1
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Kalmtool
说明: 本程序是卡尔曼滤波的源程序包,请大家分享.(Kalman filtering of the source packet, please share.)
- 2006-05-03 21:39:15下载
- 积分:1