Coming soon…


Signal Processing

Fourier filter: A time signal containing Morse code is Fourier transformed to frequency space to see the main component. By applying a narrow band pass filter the Morse signal is extracted and a nice ‘SOS’ can be seen:



Maxima session showing the chaotic dynamics of the Duffing oscillator. The differential equation of the forced oscillator are solved with Maxima. Plots of the trajectory, the phase space of the oscillator and the corresponding Poincaré map are done with LabPlot:


Python session illustrating the effect of Blackman windowing on the Fourier transform:



Coming soon…



Coming soon…