The field of pipelined FFT hardware architectures has been studied during the last 50 years.
This paper is a survey that includes the main advances in the field related to architectures for …

This paper presents new serial butterflies for non-power-of-two (NP2) fast Fourier transform
(FFT) architectures. The paper considers radices 2, 3, 4, and 5, which are used in FFTs for …

This paper presents a reconfigurable fast Fourier transform (FFT) hardware architecture,
supporting 46 different FFT sizes defined in 3GPP-LTE applications. Our proposed design …

In this paper we propose a new representation for FFT algorithms called the triangular matrix
representation. This representation is more general than the binary tree representation and …

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 …

Beamspace processing is an emerging paradigm to reduce hardware complexity in all-
digital millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) …

The fast Fourier transform (FFT) is a widely used algorithm in signal processing applications.
FFT hardware architectures are designed to meet the requirements of the most demanding …

In this paper, we present the first implementation of a 1 million-point fast Fourier transform
(FFT) completely integrated on a single field-programmable gate array (FPGA), without the …

This article presents an efficient hardware implementation approach to a variable-size fast
Fourier transform (FFT) processor for spectral analysis. Due to its capability to handle …

This research paper proposes a novel robust high-performance power spectrum estimator,
and bispactral power density analyzer that has outstanding capabilities in estimating noisy …