Hi,

I want to sketch the power spectrum of the following Fourier transform function:

$\displaystyle \frac{cos(20.\pi.t)}{[1+t^2]}$.

the fourier transform of

$\displaystyle F(\frac{1}{[1+t^2]})=\pi*e^{-2.\pi.|f|}

$

I am a little bit confused about thefrequenciesand themagnitudeof the power.

Can someone clarify me on this?

Thank you