標題: | Feedforward FFT Hardware Architectures Based on Rotator Allocation |
作者: | Garrido, Mario Huang, Shen-Jui Chen, Sau-Gee 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | Fast Fourier transform (FFT);multi-path delay commutator (MDC);pipelined architecture;radix-2;radix-2(k) |
公開日期: | 1-二月-2018 |
摘要: | 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-2(k) 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. |
URI: | http://dx.doi.org/10.1109/TCSI.2017.2722690 http://hdl.handle.net/11536/144439 |
ISSN: | 1549-8328 |
DOI: | 10.1109/TCSI.2017.2722690 |
期刊: | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS |
Volume: | 65 |
起始頁: | 581 |
結束頁: | 592 |
顯示於類別: | 期刊論文 |