swan

swan is a tool for wavelet data analysis.

It’s meant to be simple in use and easy to extend.

Examples

Pythonで連続ウェーブレット解析 - ICの日記

code:python

import matplotlib.pyplot as plt

import iwavelets.pycwt as pycwt

import numpy as np

Fs=10.

time=np.arange(0.,20.,1/Fs)

signal =np.sin(2./5.*np.pi*time*(time/max(time)*10.));

freqs=np.arange(1./20.,Fs/2.,0.01)

fc=1.5

r=pycwt.cwt_f(signal,freqs,Fs,pycwt.Morlet(fc))

rr=r.real**2+r.imag**2

plt.subplot(211)

plt.pcolor(time,freqs,rr)

plt.subplot(212)

plt.plot(time,signal)

plt.show()

https://gyazo.com/ce3403f7bd207772e01b3042b0d98921