CTFT of periodic signals and some properties with proofs
- Fourier series of periodic signals
| Function | CTFT | Proof |
|---|---|---|
| $ sin(\omega_0t) $ | $ \frac{\pi}{j}(\delta(\omega - \omega_0) - \delta(\omega+\omega_0) $ | |
| $ cos(\omega_0t) $ | $ \frac{1}{2}e^{j\omega_0 t} + \frac{1}{2}e^{-j\omega_0 t} $ | |
| $ e^{j\omega_0t}u(t) $ | $ 2\pi\delta(\omega - \omega_0) $ |
