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Unformatted text preview: x and y have DFTs X = 1 0 1-1 / T and Y = 3 5 8-4 / T (i) Is either x or y real-valued? (ii) Does either x or y have circular conjugate symmetry? (iii) Without inverting X or Y , determine the DFT of the signal s (1) dened by s (1) [ n ] = x [ n ] y [ n ] , n = 0 , 1 , 2 , 3 (iv) Without inverting X or Y , determine the DFT of the signal s (2) dened by s (2) = x ~ y S 27.2 ( P 3.21 in textbook). The time-domain signals x = 2 0 1 3 / T and y = 1-1 2-4 / T have DFTs X and Y given by X = X X 1 X 2 X 3 / T and Y = Y Y 1 Y 2 Y 3 / T Determine the time-domain signal s whose DFT is given by S = X Y 2 X 1 Y 3 X 2 Y X 3 Y 1 / T...
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- Spring '08