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wavelet-remove-noise
小波方法进行降噪,阈值函数来完成不同设计,核心程序如下面的所示,使用的小波基有coif5,db3,sym4,bior2.4,haar,rbio(Wavelet method for noise reduction, design to complete different threshold function, the core program as shown below, using the wavelet base coif5, db3, sym4, bior2.4, haar, rbio
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- 2013-10-23 15:10:59下载
- 积分:1
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xiaobofenxijiangyi
说明: 小波(Wavelet)这一术语,顾名思义,“小波”就是小的波形。所谓“小”是指它具有衰减性;而称之为“波”则是指它的波动性,其振幅正负相间的震荡形式。与Fourier变换相比,小波变换是时间(空间)频率的局部化分析,它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。有人把小波变换称为“数学显微镜”。
这套讲义生动详实的快速带领初学者掌握小波的基本要点,是不可多得的好材料!(This is a handbook about Wavelet.)
- 2009-09-02 15:44:17下载
- 积分:1
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imagereconstruction
基于小波和插值的超分辨率图像重建算法,通过插值后将小波分解应用于图像中,再通过逆变换得到重构图像(And interpolation based on wavelet super-resolution image reconstruction algorithm by interpolating the image after the wavelet decomposition used, then the reconstructed image through the inverse transform)
- 2011-01-06 11:19:58下载
- 积分:1
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xinhaoquzao
利用小波变换进行改进阈值信号去噪
(Improvement threshold signal denoising using wavelet transform)
- 2012-10-29 16:35:35下载
- 积分:1
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DWT_1D
离散小波变换是指在特定子集上采取缩放和平移的小波变换,是一种兼具时域和频域多分辨率能力的信号分析工具。此变换运用可以缩放平移的小波代替固定的窗进行计算分析,主要应用于信号编码和数据压缩。(Discrete wavelet transform refers to the specific subset take scaling and translation on the wavelet transform, is a kind of multi-resolution ability both time domain and frequency domain signal analysis tool. This transformation can use zoom translational wavelet calculation and analysis instead of the fixed window, mainly used in signal coding and data compression.
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- 2013-11-10 22:12:48下载
- 积分:1
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code
小波域图像滤波,采用双变量收缩函数发实现(Bivariate Shrinkage Functions for Wavelet-Based Denoising)
- 2010-10-27 14:39:16下载
- 积分:1
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svd_dwt
实现基于离散小波(dwt)的奇异值(svd)分解算法的实现(Decomposition algorithm based on singular value of the discrete wavelet (dwt) (svd))
- 2020-10-23 17:17:22下载
- 积分:1
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ChirpLab
线调频小波路径追踪算法的程序,对研究瞬时频率估计有很大的参考价值。(Chirplet path tracing algorithm of the program, the study of instantaneous frequency is estimated that there is a great reference value.)
- 2012-04-16 16:43:37下载
- 积分:1
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广义S变换及逆
说明: 广义S变换及其逆变换代码,可以直接进行属性分析(Generalized S-transform and its inverse transform code can be used for attribute analysis directly)
- 2020-05-28 21:58:36下载
- 积分:1
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stran
说明: 基本的S变换matlab实现 用于时频分析 为初学者提供基本代码(S transformation for time-frequency analysis to provide basic code for beginners)
- 2021-01-13 16:38:48下载
- 积分:1