Pipelined Radix- 2k Feedforward FFT Architectures

Garrido Gálvez, Mario; Grajal de la Fuente, Jesús; Sánchez Marcos, Miguel Ángel y Gustafsson, Oscar (2011). Pipelined Radix- 2k Feedforward FFT Architectures. "IEEE Transactions on Very Large Scale Integration (Vlsi) Systems" (n. 99); pp. 1-10. ISSN 1063-8210.

Descripción

Título: Pipelined Radix- 2k Feedforward FFT Architectures
Autor/es:
  • Garrido Gálvez, Mario
  • Grajal de la Fuente, Jesús
  • Sánchez Marcos, Miguel Ángel
  • Gustafsson, Oscar
Tipo de Documento: Artículo
Título de Revista/Publicación: IEEE Transactions on Very Large Scale Integration (Vlsi) Systems
Fecha: 2011
Materias:
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Señales, Sistemas y Radiocomunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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URL Oficial: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6118316

Resumen

The appearance of radix-$2^{2}$ was a milestone in the design of pipelined FFT hardware architectures. Later, radix-$2^{2}$ was extended to radix-$2^{k}$ . However, radix-$2^{k}$ was only proposed for single-path delay feedback (SDF) architectures, but not for feedforward ones, also called multi-path delay commutator (MDC). This paper presents the radix-$2^{k}$ feedforward (MDC) FFT architectures. In feedforward architectures radix-$2^{k}$ can be used for any number of parallel samples which is a power of two. Furthermore, both decimation in frequency (DIF) and decimation in time (DIT) decompositions can be used. In addition to this, the designs can achieve very high throughputs, which makes them suitable for the most demanding applications. Indeed, the proposed radix-$2^{k}$ feedforward architectures require fewer hardware resources than parallel feedback ones, also called multi-path delay feedback (MDF), when several samples in parallel must be processed. As a result, the proposed radix-$2^{k}$ feedforward architectures not only offer an attractive solution for current applications, but also open up a new research line on feedforward structures.

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ID de Registro: 12291
Identificador DC: http://oa.upm.es/12291/
Identificador OAI: oai:oa.upm.es:12291
Depositado por: Memoria Investigacion
Depositado el: 30 Ago 2012 07:53
Ultima Modificación: 21 Abr 2016 11:32
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