Linear time-invariant discrete-time system If input is bandlimited and sampling frequency is high enough to avoid aliasing then overall system behaves as an LTI continuous-time system He (jo2) ∫Hm)pl<z/r >兀, CID H(ejo) DIC xa(t x yIn y T continuous-time specifications are converted to discrete time specifications by: w=T, H(e/)=Hor(G ").b V<丌 55 ◆If input is bandlimited and sampling frequency is high enough to avoid aliasing, then overall system behaves as an LTI continuous-time system ( ) ( )         =  T H e T H j j T eff   0, , Linear time-invariant discrete-time system ( ) , eff jw w H H j w T e    =      continuous-time specifications are converted to discrete time specifications by: w T = 