blade88
Junior Member level 2
Hello,
I solved an exercise, asking for the Fourier transform of the signal \[\delta(9-5n)\].
First, I changed the signal form:
Because delta function is symmetric, I rewrote it as \[\delta(5n-9)\]
and then I used the scale property: \[\delta(5(n-\frac{9 }{5 }))=\frac{1 }{5 }\delta(n-\frac{9 }{5 })\]
Then, the fourier transform is: \[\frac{1 }{5 }exp(-j\frac{ 9}{ 5}\Omega)\].
However, the solution given by the professor is : \[exp(-j\frac{ 9}{ 5}\Omega)\].
Could someone please tell me whether I am doing something wrong in my solution?
Thank you
I solved an exercise, asking for the Fourier transform of the signal \[\delta(9-5n)\].
First, I changed the signal form:
Because delta function is symmetric, I rewrote it as \[\delta(5n-9)\]
and then I used the scale property: \[\delta(5(n-\frac{9 }{5 }))=\frac{1 }{5 }\delta(n-\frac{9 }{5 })\]
Then, the fourier transform is: \[\frac{1 }{5 }exp(-j\frac{ 9}{ 5}\Omega)\].
However, the solution given by the professor is : \[exp(-j\frac{ 9}{ 5}\Omega)\].
Could someone please tell me whether I am doing something wrong in my solution?
Thank you