Digital Signal Processing Reference
In-Depth Information
(
b
)
(
c
)
FIGURE 6.25.
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Continued
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2.
Implement a radix-2 FFT of an input using a lookup table with 32 sine data
values over one cycle. Select an 8 kHz sample rate. Obtain a plot of the output
magnitude. What is the output frequency?
3.
In Example 6.8, the program
Fastconvo_sim.c
implements a simulated
version of the fast convolution based on Example 6.7. It incorporates the C-
coded FFT function in Example 6.2 in lieu of TI's radix-2 FFT function and
the two support functions for bit reversal used in Example 6.7. Modify this C
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