User talk:ScientificRigor

Welcome to the wiki. We could always use a little scientific rigor. 02:54, 8 January 2010 (UTC)

Autocorrelation
$$r_x(t-\tau)=E\big[x(t)x(\tau)\big]=\int_{-\infty}^{\infty} x(t)x(t-\tau)dt $$