Hi,

I have that the spectral density of a wide-sense stationary process $\displaystyle X(t)$ is $\displaystyle \frac{\sigma^2}{2\lambda}$

Is there some way I can write the autocorrelation $\displaystyle R_X(t,t+h)$ in terms of $\displaystyle \sigma^2$ and $\displaystyle \lambda$?

Thanks