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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cet article présente un algorithme CORDIC radix-2-4-8 à facteur d'échelle constant pour la rotation vectorielle rapide et le calcul sinus/cosinus. L'algorithme CORDIC est un algorithme matériel bien connu permettant de calculer diverses fonctions élémentaires. Cependant, en raison de la nature séquentielle du calcul, une réduction significative de la latence de traitement est requise pour les applications de traitement du signal en temps réel. L'algorithme CORDIC radix-2-4-8 proposé modifie dynamiquement la base de calcul pendant le fonctionnement et permet de réduire le nombre d'itérations de 37 % pour une précision de 64 bits. Cet article décrit également la mise en œuvre matérielle de l'unité CORDIC radix-2-4-8 qui peut être installée dans des processeurs de signaux numériques pratiques.
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Takafumi AOKI, Ichiro KITAORI, Tatsuo HIGUCHI, "Radix-2-4-8 CORDIC for Fast Vector Rotation" in IEICE TRANSACTIONS on Fundamentals,
vol. E83-A, no. 6, pp. 1106-1114, June 2000, doi: .
Abstract: This paper presents a constant-scale-factor radix-2-4-8 CORDIC algorithm for fast vector rotation and sine/cosine computation. The CORDIC algorithm is a well-known hardware algorithm for computing various elementary functions. Due to its sequential nature of computation, however, significant reduction in processing latency is required for real-time signal processing applications. The proposed radix-2-4-8 CORDIC algorithm dynamically changes the radix of computation during operation, and makes possible the reduction in the number of iterations by 37% for 64-bit precision. This paper also describes the hardware implementation of radix-2-4-8 CORDIC unit that can be installed into practical digital signal processors.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e83-a_6_1106/_p
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@ARTICLE{e83-a_6_1106,
author={Takafumi AOKI, Ichiro KITAORI, Tatsuo HIGUCHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Radix-2-4-8 CORDIC for Fast Vector Rotation},
year={2000},
volume={E83-A},
number={6},
pages={1106-1114},
abstract={This paper presents a constant-scale-factor radix-2-4-8 CORDIC algorithm for fast vector rotation and sine/cosine computation. The CORDIC algorithm is a well-known hardware algorithm for computing various elementary functions. Due to its sequential nature of computation, however, significant reduction in processing latency is required for real-time signal processing applications. The proposed radix-2-4-8 CORDIC algorithm dynamically changes the radix of computation during operation, and makes possible the reduction in the number of iterations by 37% for 64-bit precision. This paper also describes the hardware implementation of radix-2-4-8 CORDIC unit that can be installed into practical digital signal processors.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Radix-2-4-8 CORDIC for Fast Vector Rotation
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1106
EP - 1114
AU - Takafumi AOKI
AU - Ichiro KITAORI
AU - Tatsuo HIGUCHI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E83-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2000
AB - This paper presents a constant-scale-factor radix-2-4-8 CORDIC algorithm for fast vector rotation and sine/cosine computation. The CORDIC algorithm is a well-known hardware algorithm for computing various elementary functions. Due to its sequential nature of computation, however, significant reduction in processing latency is required for real-time signal processing applications. The proposed radix-2-4-8 CORDIC algorithm dynamically changes the radix of computation during operation, and makes possible the reduction in the number of iterations by 37% for 64-bit precision. This paper also describes the hardware implementation of radix-2-4-8 CORDIC unit that can be installed into practical digital signal processors.
ER -