Efficient VLSI Architecture for Decimation-in-Time Fast Fourier Transform of Real-Valued Data
IEEE Transactions on Circuits and Systems I: Regular Papers(2015)
摘要
The decimation-in-time (DIT) fast Fourier transform (FFT) very often has advantage over the decimation-in-frequency (DIF) FFT for most real-valued applications, like speech/image/video processing, biomedical signal processing, and time-series analysis, etc., since it does not require any output reordering. Besides, the DIT FFT butterfly involves less computation time than its DIF counterpart. In t...
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关键词
Signal processing algorithms,Computer architecture,Fast Fourier transforms,Clocks,Very large scale integration,Algorithm design and analysis,Discrete Fourier transforms
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