Part III
Picking Up the Frequency Domain
Check out the frequency tripler article at www.dummies.com/extras/signalsandsystems to see the relevance the Fourier series has in this application example.
In this part . . .
Get familiar with the Fourier series to understand the composition of periodic signals in the frequency domain.
Find out how to convert time-domain signals to a frequency spectrum with the Fourier transform.
Come to grips with the applied math associated with sampling theory.
See for yourself what’s so cool about using the discrete Fourier transform to process signals by multiplication in the frequency domain.
