Based on the analysis of the complexity and hardware architecture of FFT, the proposed processor adopts radix-4 DIF algorithm, pipelined architecture and fixed-point operation.
在分析了FFT算法的复杂度和硬件实现结构的基础上，处理器采用了按频率抽取的基- 4算法，分级流水线以及定点运算结构。
The comparison results show that, compared with multi-dimensional separable FFT, the DIF multi-dimensional vector radix FFT algorithm has lower calculation load.
计算量比较结果显示，频域抽取多维向量基FFT算法比多维分离式FFT算法计算量低。
This FFT algorithm can be used with arbitrary integer dimensions. For 1-dimension, the algorithm will be simplified as the well-known DIF vector radix 2 FFT.
该FFT算法适合于维数为任意整数的情况，当维数为1时，算法退化为著名的频域抽取向量基2 FFT算法。
This FFT algorithm can be used with arbitrary integer dimensions. For 1-dimension, the algorithm will be simplified as the well-known DIF vector radix 2 FFT.
该FFT算法适合于维数为任意整数的情况，当维数为1时，算法退化为著名的频域抽取向量基2 FFT算法。
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