| 摘要 |
<p>An FFT/IFFT (Fast Fourier Transform/Inverse Fast Fourier Transform) operation core includes: an input buffer, the first multiplexer, an operation module and a control module. The input buffer stores and outputs the first FFT input sequence. The first multiplexer switches on one of the first and the third FFT input sequences. The control module generates a signal process mode indicating signal, and a bypass indicating signal. The operation module has many operation stages in series, answers to the signal process mode indicating signal and the bypass indicating signal, transforms the first FFT input sequence and the third FFT input sequence, respectively generates the first FFT output sequence and the third FFT output sequence, transforms the second IFFT input sequence and generates the second IFFT output sequence.</p> |
