So much noise on a plane! Introducing the Power Spectral Density
Power spectral density (PSD) Wavy has been a little absent in the last period, engaged in several trips. During last trip and reflecting about the sound he heard on the…
Posted inPython
Wavy and the sampling or Nyquist-Shannon theorem
The sampling theorem or Nyquist-Shannon theorem This post deals with one of the fundamental theorem of signal processing: the sampling theorem or Nyquist-Shannon theorem (have a look on wikipedia). What…
Curious about what Signal Processing is?
Are you curious to know what is Signal Processing? Have you have ever heard "we need to process the signal"or "we need to analyse the data" and you want to…
Posted inPython
Any idea of what a frequency is? Playing with the Fourier Transform
Do you have any idea of what a frequency is? How can we pick the frequencies contained in a signal? I'm going to show how we can extract the frequency…
Posted inPython
Simulating time series
We are going to simulate time series using basic function in python. This is the first post of a series I'm going to write on signal processing, machine learning and…