Revision as of 06:10, 29 October 2009

Definition of Basic Signals and Functions

Sinc, Jinc, etc.
sinc function	$sinc(\theta)=\frac{sin(\pi\theta)}{\pi\theta}$
step function and related
CT unit step function	$u(t)=\left\{ \begin{array}{ll}1, & t\geq 0 \\ 0, & \text{ else}\end{array}\right., \text{ for }t\in {\mathbb R}$
DT unit step function	$u[n]=\left\{ \begin{array}{ll}1, & n\geq 0 \\ 0, & \text{ else}\end{array}\right., \text{ for }n\in {\mathbb Z}$
unit impulse signal (Dirac Delta) and related
CT unit impulse (Dirac Delta)