| 摘要 |
<p>A method for implementing IFFT by using FFT is provided, the method includes: making an input data sequence implement the left mirror inverse, then implementing FFT, and making the result divide N, so as to obtain the IFFT processing data; or making the input data sequence implement FFT, then making the result of FFT implement the left mirror inverse and divide N, so as to obtain IFFT processing data; the left mirror inverse is that: inversing the sequence of other data except that the first data; N is the length of the input data sequence. Also, IFFT processing apparatus including FFT computing unit and the left mirror inverse unit is provided.</p> |
