Real time digital signal processing P7

Chia sẻ: Khinh Kha Kha | Ngày: | Loại File: PDF | Số trang:47

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Real time digital signal processing P7

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Fast Fourier Transform and Its Applications Frequency analysis of digital signals and systems was discussed in Chapter 4. To perform frequency analysis on a discrete-time signal, we converted the time-domain sequence into the frequency-domain representation using the z-transform, the discrete-time Fourier transform (DTFT), or the discrete Fourier transform (DFT). The widespread application of the DFT to spectral analysis, fast convolution, and data transmission is due to the development of the fast Fourier transform (FFT) algorithm for its computation. The FFT algorithm allows a much more rapid computation of the DFT, was developed in the mid-1960s by Cooley and Tukey. It is...

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