DIT, Butterfly diagram, 8 Samples, Natural Input, Scrambled output.

Cuthbert Nyack
Instead of scrambling the input, the natural input can be used and the output descrambled. in this case the matrix multipliers are shown below and Xs(m) = WT3 * WT2 * WT1 * x(n).
The applet below calculates Xs(m) and X(m) for 8 samples x(n).

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COPYRIGHT 2007 Cuthbert Nyack.