Helpful and/or Insightful External Links:
- Clicking here provides an intuitive explanation of the Fourier transform and provides an interface for creating your own Fourier circles like the ones below.
- Clicking here will take you to the original MATLAB code I used as my primary “backbone” for comprising the gifs below
- Click here for example MATLAB code generating a gif animating the Fourier approximation for the square wave
Below are some MATLAB simulations illustrating the distinction between the individual sine functions comprising the Fourier series of a SISO (top diagram) vs. the summation of these sine functions (bottom diagram). Both these scenarios are depicted as an”orbiting particle” about the unit circle on the left-hand side and are translated onto a 2D graph of amplitude vs. angle. I have posted a link at the top of the page to the “backbone” code I used when creating these simulations. If you would like me to send you the script I compiled to generate these particular gifs, just leave you information in the the contact me section and I will be glad to send you them.
- The variable θ (units of degree) can be translated into units of time by mapping every revolution (θ = 360°) with some period of time T