Algorithms and pipeline architectures for 2-D FFT and FFT-like transforms
O Nibouche, S Boussakta, M Darnell… - Digital Signal …, 2010 - Elsevier
In this paper, efficient pipeline architectures that implement the 2-D FFT are presented.
Based on the Vector Radix approach, the new structures alleviate the use of memory banks
and the transposition of data of the row–column technique. Architectures for Vector Radix 2×
2 algorithm and for a modified Vector Radix 4× 4, called Vector Radix 22× 22 algorithm,
which has been devised and constructed from Vector Radix 2× 2, are presented. These
architectures can also be built from their 1-D counterparts. Thus, generic and parameterised …
Based on the Vector Radix approach, the new structures alleviate the use of memory banks
and the transposition of data of the row–column technique. Architectures for Vector Radix 2×
2 algorithm and for a modified Vector Radix 4× 4, called Vector Radix 22× 22 algorithm,
which has been devised and constructed from Vector Radix 2× 2, are presented. These
architectures can also be built from their 1-D counterparts. Thus, generic and parameterised …
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