Implementation of 32 Bit Discrete Radix-4 FFT Unit

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Provided by: International Journal of Innovative Science Engineering and Technology (IJISET)
Topic: Hardware
Format: PDF
In order to perform any operation over a digital signal it needs to be converted from frequency domain to time domain. Fast Fourier Transform (FFT) operation is required at the receiver side to perform signal transformation at higher rate when compared to that of DFT. The implementation of radix-4 FFT is performed in various methods namely butterfly method, Radix-r FFT and split radix FFT. In this paper, the radix-4 FFT is implemented, which is the fastest mode of converting the signal from time domain to frequency domain.
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