The DFT of a vector [a b c d] is the vector [α, β, γ, δ]. Consider the product [p q r s] = [a b c d] \left[\begin{array}{cccc}a & b & c & d \ d & a & b & c \ c & d & a & b \ b & c & d & c \ ]\end{array}. The DFT of the vector [ ] is a scaled version of

Correct Answer is : [α2 β2 γ2 δ2]

GATE Electronics and Communications (EC) 2013 Solved Paper

Question : 49 of 65

Marks: +1, -0

The DFT of a vector [a b c d] is the vector [α, β, γ, δ]. Consider the product
[p q r s] = [a b c d]

{[\table a , b , c , d ; d , a , b , c ; c , d , a , b ; b , c , d , c ; ]}

. The DFT of the vector [ ] is a scaled version of

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