给出了频域抽取二维向量基快速傅里叶变换算法，针对二维频域信号采用频域抽取方法，导出了该快速算法蝶形运算的一般形式并给出了算法实现流程图。
In accordance with the requirements of high speed digital signal processing, the algorithm of radix-4 implemented with FPGA and the integrated architecture and butterfly unit are analyzed.
给出了频域抽取二维向量基快速傅里叶变换算法，针对二维频域信号采用频域抽取方法，导出了该快速算法蝶形运算的一般形式并给出了算法实现流程图。
In accordance with the requirements of high speed digital signal processing, the algorithm of radix-4 implemented with FPGA and the integrated architecture and butterfly unit are analyzed.
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