Prob.6.( pts) i) (pts)Derive the 4-point DIT (Decimation-In Time) FFT and draw its signal-flow graph representation. ii)

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Prob 6 Pts I Pts Derive The 4 Point Dit Decimation In Time Fft And Draw Its Signal Flow Graph Representation Ii 1 (39.99 KiB) Viewed 54 times

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Prob 6 Pts I Pts Derive The 4 Point Dit Decimation In Time Fft And Draw Its Signal Flow Graph Representation Ii 2 (20.31 KiB) Viewed 54 times

Answer to II:
X(k)=[4, 1+j, -18, 1-j]
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Prob.6.( pts) i) (pts)Derive the 4-point DIT (Decimation-In Time) FFT and draw its signal-flow graph representation. ii) (pts) Using the signal-flow graph representation of the 4-point DIT FFT calculate the 4-point DFT of for x(n)=[-3, 5, -4, 6] .

W; = 1,W; ' = - j1,W, =-1,W, = jl W, = = =- = 4 4 4 4 ( WWW,,W, W',W,W, W. W*.W. 2 4 4 4 4 4 4