I need to generate a chirp signal between $f_{start} = -f_{limit}$ and $f_{stop} = f_{limit}$, to compare it to a FrFT generated signal.
The FrFT signal of order $\alpha = 0$ is PAM modulated data signal, so is in baseband. Therefore, the FrFT of that same signal, with $\alpha \neq 0$, sweeps between $f_{start} = -f_{limit}$ and $f_{stop} = f_{limit}$.
I was wondering, how do I generate a chirp between those two frequencies, $-f_{limit}$ and $f_{limit}$? And, is there any documentation for this?