| 摘要 |
In an FFT computing apparatus, a computation-unit switching detection unit detects timing at which a complex multiplication is not being carried out in said butterfly computation of FFT computation, and a complex-multiplication power-computation unit switches computation between complex multiplication and power computation, based on a detection result by said computation-unit switching detection unit. The complex-multiplication power-computation unit performs power computation at timing at which complex multiplication is not carried out in said butterfly computation of FFT computation. |
