effect of phase and group delay of a linear system For ideal delay system:n Hid(eio)e-jon r(a)-farg(arge or =%{-om}, The constant group delay nrepresents a convenient measure of the linearity of the phase. The effect of constant group delay na for a system is to delay the input by n samples to get the outputeffect of phase and group delay of a linear system ◆For ideal delay system:  d d  d n n d   =− − = The constant group delay nd represents a convenient measure of the linearity of the phase. The effect of constant group delay nd for a system is to delay the input by nd samples to get the output . ( ) arg ( ) j id d H e d     =−( ) d j j n H e e id   − =    , y n x n n = − d 15 arg  d d j n d e   − =−     The constant group delay represents a convenient