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采用小波进行图像消噪
- 数字图像在产生过程中经常会受到噪音污染。因此,对于数字图像应该对其进行去噪音处理。在传统的基于傅里叶变换的信号去噪音方法中,可以使得信号和噪音的频带重叠部分尽可能的小,这样就可以在频域通过时,不需改变滤波方法而将信号和噪音分隔开来。但是,如果信号和噪音的频域重合时,用该方法进行噪音处理的效果就比较差。-digital image in the selection process will be subject to regular noise pollution. Therefore, the
频散曲线求解代码
- 弹性波中瑞雷波的正演计算。求解多层瑞雷波频散曲线。计算速度快。(专业小软件)-elastic wave Rayleigh wave to the calculation. Solving multi-storey Rayleigh wave dispersion curves. Calculation speed. (Professional small software)
图11-2-6DOG小波时域和频域波形.rar
- 用matlab观察DOG小波时域和频域波形,using Matlab observation DOG wavelet time domain and frequency domain waveform
Time-Frequence
- 该程序是盲源分离算法中时域—频域分离算法,该算法应用范围广泛。-The procedure is blind source separation algorithm in time domain- the frequency domain separation algorithm, which a wide range of applications.
pindaifenjieyi
- 经典小波包分解,并计算各频带能量,能量比等参数-wavelet package decomposition and energy of frequency band
waveletcdf97
- matlab实现9/7双正交小波变换,将图像分解到频域-matlab realize 9/7 biorthogonal wavelet transform, the image is decomposed into the frequency domain
小波分频相干matlab程序
- 小波分频相干matlab程序,详细介绍了如何时候用matlab编写小波相干程序
powerspectrum
- 使用小波包变换分析两个信号的特征向量和各频率成分的功率谱-the analysis of two signals eigenvector and power spectrum using wavelet-packet transform
tftb2002
- 小波变换时频工具箱,内含各种matlab 程序,仅供参考-wavelet trans tools
posterior
- 关于脑电信号中机械噪声,工频噪声,以及基线漂移的处理,以及提取脑电信号中的特质点,应用matlab中的小波变换来进行消噪找特征点-On the EEG machine noise, frequency noise, and baseline drift of the processing, as well as the characteristics of EEG in point, application of wavelet transform in matlab to find featu
wavelet_morlet
- 对一维信号进行连续小波变换,从时频角度分析和处理信号!-One-dimensional continuous wavelet transform signals from time-frequency analysis and signal processing point of view!
f12_1
- 小波包在信号时频分析中的应用,计算得而他信号小波变换的时频面-Wavelet packet time-frequency signal analysis, he calculated wavelet transform time-frequency plane
Untitled
- 基于MATLAB的小波分析应用:运用小波的时域、频域特征对摩托车发动机故障诊断和齿轮点蚀故障诊断-Wavelet analysis of MATLAB-based applications: the use of wavelets in time domain, frequency domain characteristics of motorcycles engine fault diagnosis and fault diagnosis of gear pitting
ft
- 信号的时频分布 ,信号的短时傅里叶变换。很有用 学习小波分析的时候会用到哦-The time-frequency distribution, the short time Fourier transform signal
小波变换
- 小波变换 信号处理 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。(Wavelet transform signal processing through the telescopic translation operations to signal (function) step by step multi scale refinement, the final breakdown of ti
extract-gait-cycle小波变换
- 用小波变换寻找步态周期,获得高斯参数,将时域变换到频域(seek gait cycle with Walvet)
--4层--db4--20db--
- 小波阈值去噪,小波变换是一种信号的时间——尺度(时间——频率)分析方法,它具有多分辨分析的特点,而且在时频两域都具有表征信号局部特征的能力(Wavelet threshold denoising)
Time-Frequency Toolbox
- Time Frequency Toolbox matlab时频分析工具箱,里面有各种时频分析函数,用matlab实现的,小波变换,Gabor变化,短时傅里叶变换等等(AF Ambiguity function AR Auto-regressive (filter or model) ASK Amplitude shift keyed signal BJD Born-Jordan distribution BPSK Binary phase shift keyed signal BUD
8880短时傅里叶小波
- 对信号进行短时傅里叶变换和小波变换,观察其时频特性,压缩包中含有需要用到的测试信号文件,可以直接运行,供参考(Carry out short-time Fourier transform and wavelet transform on the signal, observe its time-frequency characteristics, and the compression package contains the test signal files needed, which ca
cal_waveletfeature
- 计算小波包特征,小波分解得到能量比、小波熵。小波熵是一个统称,不是一种具体的熵算法。(The wavelet packet features are calculated, and the energy ratio and wavelet entropy are obtained by wavelet decomposition. Wavelet entropy is a general term, not a specific entropy algorithm.)