4.9. Compute the rectangular form of the four-point DFT of the following signals, all of which are zerc for a <0 and nz 4: (a) 지이 -1, 피1 -0, 피2)-1, 피지 -0 b) 이 -1. 피%30. 피리3-1, 지33D fe) 피이=1, 피1] =D1,지2=-1, 지3 1 %3D

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4.9. Compute the rectangular form of the four-point DFT of the following signals, all of which
are zerc for n<0 and n 2 4:
(a) 지이 -1, 제1]-0, 피2]-1, 지3-0
) 제이 D1, 피%30, 피리3-1, 지3]3 0
(e) 피이 = 1, 피1]-1, 지23-1, 지3)--1
Transcribed Image Text:4.9. Compute the rectangular form of the four-point DFT of the following signals, all of which are zerc for n<0 and n 2 4: (a) 지이 -1, 제1]-0, 피2]-1, 지3-0 ) 제이 D1, 피%30, 피리3-1, 지3]3 0 (e) 피이 = 1, 피1]-1, 지23-1, 지3)--1
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