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FAST FOURIER TRANSFORM AND INVERSE FAST FOURIER TRANSFORM (FFT/IFFT) OPERATING CORE
FAST FOURIER TRANSFORM AND INVERSE FAST FOURIER TRANSFORM (FFT/IFFT) OPERATING CORE
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机译:快速傅里叶变换和逆快速傅里叶变换(FFT / IFFT)操作核
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摘要
An FFT/IFFT operating core capable of minimizing a required memory depth during operation is disclosed. The FFT/IFFT operating core includes an inputting buffer, a first multiplexer, an operating module, and a controlling module. The inputting buffer stores and outputs a first FFT input sequence. The first multiplexer is utilized to multiplex the first FFT input sequence and a third input sequence. The controlling module generates a process indicating signal and a bypass indicating signal. The operating module has a plurality of operating stages in series. The operating module transforms the first and third FFT input sequences into a first and third FFT output sequences, respectively, and it transforms a second IFFT input sequence into a second IFFT output sequence.
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