Multi-Channel FFT Architectures Designed via Folding and Interleaving

Nanda K. Unnikrishnan; Keshab K. Parhi

doi:10.1109/iscas48785.2022.9937347

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arXiv · 2202.09623

Multi-Channel FFT Architectures Designed via Folding and Interleaving

Nanda K. Unnikrishnan·Keshab K. Parhi

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Abstract

Computing the FFT of a single channel is well understood in the literature. However, computing the FFT of multiple channels in a systematic manner has not been fully addressed. This paper presents a framework to design a family of multi-channel FFT architectures using {\em folding} and {\em interleaving}. Three distinct multi-channel FFT architectures are presented in this paper. These architectures differ in the input and output preprocessing steps and are based on different folding sets, i.e., different orders of execution.

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Nanda K. Unnikrishnan, Keshab K. Parhi. 2022-02-19. Multi-Channel FFT Architectures Designed via Folding and Interleaving. https://doi.org/10.1109/iscas48785.2022.9937347

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