Apply butterworth filter python

>>> from scipy import signal
>>> import matplotlib.pyplot as plt

Source: docs.scipy.org

Apply butterworth filter python

>>> b, a = signal.butter(4, 100, 'low', analog=True)
>>> w, h = signal.freqs(b, a)
>>> plt.semilogx(w, 20 * np.log10(abs(h)))
>>> plt.title('Butterworth filter frequency response')
>>> plt.xlabel('Frequency [radians / second]')
>>> plt.ylabel('Amplitude [dB]')
>>> plt.margins(0, 0.1)
>>> plt.grid(which='both', axis='both')
>>> plt.axvline(100, color='green') # cutoff frequency
>>> plt.show()

Source: docs.scipy.org

Similar codes

4 votes183 views3 answers
Iterate python
Python
14 votes281 views1 answer
Create data dir in python
Python
4 votes186 views1 answer
Python -c import pty;
Python
0 vote222 views1 answer
How to make a config txt file on python
Python
0 vote187 views1 answer
How to upload files and folders with pygithub
Python
1 vote189 views1 answer
A0 = dict(zip(('a','b','c','d','e'),(1,2,3,4,5)))
Python
2 votes184 views3 answers
How to loop over month name in python
Python
0 vote179 views1 answer
Get_scholarly_instance()
Python
14 votes190 views1 answer
Python cheat sheet pdf download
Python
0 vote178 views1 answer
Axes increase fonsize of values python
Python