5.3 Effect of Sampling in the Frequency Domain The impulse train gp(t)can be expressed as 0-豆n From the frequency-shifting property of the CTFT,the CTFT of eirkiga(t)is given by Ga(j(-kT))§5.3 Effect of Sampling in the Frequency Domain • The impulse train gp(t) can be expressed as ( ) ( ) 1 g t e g t a k j kt T p T ⋅         = ∑ ∞ =−∞ Ω • From the frequency-shifting property of the CTFT, the CTFT of ejΩTktga(t) is given by Ga(j(Ω - kΩT))