Inverse DFT and the DFT Filter Bank Sum
The Length
inverse DFT is given by [264]
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(10.16) |
This suggests that the DFT Filter Bank can be inverted by simply remodulating the baseband filter-bank signals



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(10.17) |
This is in fact true, as we will later see. (It is straightforward to show as an exercise.)
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DFT Filter Bank