I have a chirp signal defined as following: $$ x(t)=\left\{\begin{array}{lr} e^{i\cdot\pi\cdot(B/pw)\cdot(t-pw/2)^2}, & \text{for } 0\leq n\leq \text{pw}\\ 0, & \text{else} \end{array}\right\} $$ where B, pw are constants. How can I calculate the support of the autocorrelaton of this signal?
thank you