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WAVE-weifengyin
- 小波变换具有多分辨率分析的特点,并且在时频两域都具有表征信号局部特征的能力。小波变换通过将时间系列分解到时间频率域内,从而得出时间系列的显著的波动模式,即周期变化动态,以及周期变化动态的时间格局(Torrence and Compo, 1998)。小波(Wavelet),即小区域的波,是一种特殊的、长度有限,平均值为零的波形。它有两个特点:一是“小”,二是具有正负交替的“波动性”,即直流分量为零。小波分析是时间(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,能自动适
wave1
- 小波单尺度和多尺度的分解和重构,显示最低频和所有高频系数及重构信号-Wavelet single-scale and multi-scale decomposition and reconstruction, show the low-frequency and high-frequency coefficients and the reconstructed signal
1DSignal_DecomRecon
- 对一维信号进行小波分解和重构的C程序,绝对误差为10^-11. 1)主程序:Mallat.c 2)一维信号的输入文件:wdata.dat 2)分解重构过程中产生的数据的文件:Data.txt-One-dimensional signal wavelet decomposition and reconstruction of C procedure, the absolute error of 10 ^-11. 1) The main program: Mallat.c 2)
DWT1D
- C语言实现一维离散小波变换,通过mallat算法实现对一维信号的快速重构和分解。-C language implementation of a one-dimensional discrete wavelet transform, fast algorithm by mallat one-dimensional signal reconstruction and decomposition.
lililili
- 小波变换,对于一个给定信号进行小波变换后分解得到的低频和高频信号进行叠加,得到重构的原始波形!-Transform, for low and high frequency signal to a given signal wavelet transform decomposed superimposed to obtain the reconstructed original waveform!
xiaobo_echo1.m
- 主要通过对信号实现小波分解,将部分频段系数置零,然后进行小波重构,实现对信号的滤波功能-filter through wavlet decomposition and recover
wavelet_test
- 小波分析算法,用于信号的去噪,将原始信号分解为多个尺度的小波系数进行滤波-Wavelet analysis algorithm for denoising signals, the original signal is decomposed into a plurality of scale wavelet filter coefficients
xiaobobao_3lev
- 用于处理信号,对信号进行小波包分解,此处进行了三层分解计算,可以进行迭代。-Used to process the signal, the wavelet packet decomposition of the signal, where the three-tier decomposition of the calculation can be iterated.