These are Things I studied.
$ E[X]:-$ THis gives us Average value or Dc value
$E[X^2]:-$Total power
$\sigma^2=E[X^2]-E[X]^2$:-Ac power
From Autocorrelation
$R_x(0)=E[X^2]$--Total power
And $ \lim_{x\to \infty}{R_x(\tau)}=$Dc power
Question
The Autocorrelation fuction $ R_x(\tau) $ of a Wide-sense random process shown in below figure
The Average Power is____
So what I did? I just Find Value At $t=\infty $ and that is Zero But the official answer is 2.
So they find $R_x(0)$.
Here is my confusion. is there any difference between DC power and average power?
I just relate from E[x], which gives the Average value or DC value.
where I am thinking wrong?