多模式CORDIC算法结构改进与实现

Xiao Ning Liu; Yi Zhuang Xie; He Chen; Bing Yi Li

doi:10.3969/j.issn.0372-2112.2018.02.032

多模式CORDIC算法结构改进与实现

Translated title of the contribution: Improvement and Implementation of Multi-mode Architecture for CORDIC Algorithm

Xiao Ning Liu, Yi Zhuang Xie^*, He Chen, Bing Yi Li

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This paper improves the iterative structure of the CORDIC algorithm, and implements a multi-mode CORDIC algorithm.We reset the initial rotation to avoid the first two stage iterations and fix the error of the original algorithm by modify the judgment condition which determine the rotation direction of the vector.In the case of increasing few hardware resources, the sine, cosine, arcsine and arccosine operations are unified to the same iterative structure and be realized.The results show that the improved algorithm has higher accuracy and the hardware resources utilization can be effectively reduced in the application that need both of the two kinds of functions.

Translated title of the contribution	Improvement and Implementation of Multi-mode Architecture for CORDIC Algorithm
Original language	Chinese (Traditional)
Pages (from-to)	495-500
Number of pages	6
Journal	Tien Tzu Hsueh Pao/Acta Electronica Sinica
Volume	46
Issue number	2
DOIs	https://doi.org/10.3969/j.issn.0372-2112.2018.02.032
Publication status	Published - 1 Feb 2018

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title = "多模式CORDIC算法结构改进与实现",

abstract = "This paper improves the iterative structure of the CORDIC algorithm, and implements a multi-mode CORDIC algorithm.We reset the initial rotation to avoid the first two stage iterations and fix the error of the original algorithm by modify the judgment condition which determine the rotation direction of the vector.In the case of increasing few hardware resources, the sine, cosine, arcsine and arccosine operations are unified to the same iterative structure and be realized.The results show that the improved algorithm has higher accuracy and the hardware resources utilization can be effectively reduced in the application that need both of the two kinds of functions.",

keywords = "Coordinate rotation digital computer(CORDIC), Double iteration algorithm, Multi-mode, Trigonometric functions",

author = "Liu, {Xiao Ning} and Xie, {Yi Zhuang} and He Chen and Li, {Bing Yi}",

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AU - Xie, Yi Zhuang

AU - Chen, He

AU - Li, Bing Yi

PY - 2018/2/1

Y1 - 2018/2/1

N2 - This paper improves the iterative structure of the CORDIC algorithm, and implements a multi-mode CORDIC algorithm.We reset the initial rotation to avoid the first two stage iterations and fix the error of the original algorithm by modify the judgment condition which determine the rotation direction of the vector.In the case of increasing few hardware resources, the sine, cosine, arcsine and arccosine operations are unified to the same iterative structure and be realized.The results show that the improved algorithm has higher accuracy and the hardware resources utilization can be effectively reduced in the application that need both of the two kinds of functions.

AB - This paper improves the iterative structure of the CORDIC algorithm, and implements a multi-mode CORDIC algorithm.We reset the initial rotation to avoid the first two stage iterations and fix the error of the original algorithm by modify the judgment condition which determine the rotation direction of the vector.In the case of increasing few hardware resources, the sine, cosine, arcsine and arccosine operations are unified to the same iterative structure and be realized.The results show that the improved algorithm has higher accuracy and the hardware resources utilization can be effectively reduced in the application that need both of the two kinds of functions.

KW - Coordinate rotation digital computer(CORDIC)

KW - Double iteration algorithm

KW - Multi-mode

KW - Trigonometric functions

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多模式CORDIC算法结构改进与实现

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