1. Feedforward FFT Hardware Architectures Based on Rotator Allocation.
- Author
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Garrido, Mario, Huang, Shen-Jui, and Chen, Sau-Gee
- Subjects
- *
FAST Fourier transforms , *DIGITAL signal processing , *ALGORITHMS , *DISCRETE Fourier transforms , *HARDWARE - Abstract
In this paper, we present new feedforward FFT hardware architectures based on rotator allocation. The rotator allocation approach consists in distributing the rotations of the FFT in such a way that the number of edges in the FFT that need rotators and the complexity of the rotators are reduced. Radix-2 and radix-2k feedforward architectures based on rotator allocation are presented in this paper. Experimental results show that the proposed architectures reduce the hardware cost significantly with respect to previous FFT architectures. [ABSTRACT FROM PUBLISHER]
- Published
- 2018
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