Hãy xác định Y ( e j ω ) nếu F T [ x ( n ) ] = X ( e j ω ) ; F T [ y ( n ) ] = Y ( e j ω ) với y ( n ) = x ( n

$Y\left(e{}^{j\omega }\right)=X\left(e{}^{j\omega -\omega {}_0}\right)$

$Y\left(e{}^{j\omega }\right)=e{}^{j\omega n{}_0}X\left(e{}^{j\omega }\right)$

$Y\left(e{}^{j\omega }\right)=X\left(e{}^{j\omega }\right)-X\left(e{}^{j\omega {}_0}\right)$

$Y\left(e{}^{j\omega }\right)=e{}^{-j\omega n{}_0}X\left(e{}^{j\omega }\right)$