FAQ

Twiddle factor

A twiddle factor, in fast Fourier transform (FFT) algorithms, is any of the trigonometric constant coefficients that are multiplied by the data in… (More)
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Topic mentions per year

Topic mentions per year

1981-2016
0102019812016

Related topics

Related topics

9 relations
Butterfly diagramCooley–Tukey FFT algorithmDiscrete Fourier transformFast Fourier transform
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Related mentions per year

Related mentions per year

1947-2018
19401960198020002020
Twiddle factor
Recursion
Fast Fourier transform
Discrete Fourier transform
Root of unity
Multiplication algorithm

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2015
2015
Twiddle factor generation using CORDIC processor for fingerprint application
Fingerprint applications are widely used to identify person's authenticity. The frequency domain analysis of fingerprint plays an… (More)
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2010
2010
4k-point FFT algorithms based on optimized twiddle factor multiplication for FPGAs
In this paper, we propose higher point FFT (fast Fourier transform) algorithms for a single delay feedback pipelined FFT… (More)
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2010
2010
Improved Twiddle Access for Fast Fourier Transforms
Optimizing the number of arithmetic operations required in fast Fourier transform (FFT) algorithms has been the focus of… (More)
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2010
2010
Twiddle factor memory switching activity analysis of radix-2<sup>2</sup> and equivalent FFT algorithms
In this paper, we propose equivalent radix-2<sup>2</sup> algorithms and evaluate them based on twiddle factor switching activity… (More)
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2010
2010
Twiddle factor memory switching activity analysis of radix-22 and equivalent FFT algorithms
In this paper, we propose equivalent radix-2 algorithms and evaluate them based on twiddle factor switching activity for a single… (More)
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2009
2009
Analysis of twiddle factor memory complexity of radix-2<sup>i</sup> pipelined FFTs
In this work, we analyze different approaches to store the coefficient twiddle factors for different stages of pipelined Fast… (More)
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2007
2007
Low-Power Twiddle Factor Unit for FFT Computation
An integral part of FFT computation are the twiddle factors, which, in software implementations, are typically stored into RAM… (More)
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2007
2007
Twiddle factor transformation for pipelined FFT processing
This paper presents a novel transformation technique that can derive various fast Fourier transform (FFT) in a unified paradigm… (More)
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2007
2007
Long-Point FFT Processing Based on Twiddle Factor Table Reduction
In this paper, we present a new fast Fourier transform (FFT) algorithm to reduce the table size of twiddle factors required in… (More)
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2004
2004
An efficient FFT twiddle factor generator
Twiddle factor (TF) generator is a key component in IFFT/FFT computation for current OFDM-based wireless and wireline… (More)
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