Question: Express the algorithm described in the graph for the decimation-in-time FFT in Figure 3.11 in matrix form. Figure 3.11 x(0) x(4) W x(2) x(6) x(1)

Express the algorithm described in the graph for the decimation-in-time FFT in Figure 3.11 in matrix form.

Figure 3.11

x(0) x(4) W x(2) x(6) x(1) x(5) x(3) N4 W N/2 X(0)

x(0) x(4) W x(2) x(6) x(1) x(5) x(3) N4 W N/2 X(0) X(1) X(2) X(3) W2 WN2 -1 WN X(4) WINA N4 WN X(5) WN X(6) -1 -1 X(7) WN2 -1 -1 4 x(7) wo

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