Seonglae ChoDiscrete Time Fourier series
- is periodic only when . The fundamental period is . is the value of phase at
- For , there are only distinct harmonics
indicates any period of duration and
Signal can be represented as orthogonal signal set
There is no convergence issue since we are dealing with a finite number of harmonics.
- is the variable for selecting a harmonic
- is the variable for selecting the time instant
DTFS Notion
