Table 2 Hardware used for conventional BF and DFPABF
From: Low power reconfigurable FP-FFT core with an array of folded DA butterflies
Hardware | Conventional | DAABF |
|---|---|---|
Floating point adder/subtractor | 6 | 4 |
Floating point multiplier | 4 | 0 |
Shift accumulators | 0 | 2 |
4-input LUT | 0 | 2 |