Example #5: sin 4t sin &t Y(w)=X(w 丌t (t) h(t) XGo) HojO) Ygo) 4π Example #6: T 米已 a+ 已 Gaussian x Gaussian=Gaussian= Gaussian s Gaussian= gaussianExample #5: Gaussian × Gaussian = Gaussian ⇒ Gaussian ∗ Gaussian = Gaussian Example #6: