Abstract
This paper presented the 3-dimensional vector radix FFT algorithm.Through the method of decimation-in-time to the 3-dimensional signal,the paper deduced the general form of butterfly computation.The comparison result of various 3-dimensional DFT calculation shows that,the 3-dimensional vector radix FFT algorithm is in low-calculation and more efficient even compared to the 3-dimensional row-column decomposition FFT algorithm.
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