Discrete fast Fourier transform (FFT) has been widely applied to signal spectral analysis and can figure out the entire bandwidth spectrum of a signal.
2
针对测试环境中不平衡量信号的特点,提出了离散傅里叶变换快速算法,并在通用微机上实现。
According to the characteristics of unbalance signal, the fast algorithm of discrete Fourier transform (DFT) is presented and accomplished by using microcomputer.
3
快速傅里叶变换(FFT)是离散傅里叶变换(DFT)的快速算法。
Fast Fourier Transform (FFT) is a kind of fast computation method of Discrete Fourier Transform (DFT).