Adaptive recoding CORDIC

被引：10

作者：

Zhang, Jianfeng ^{[1
]}

Liu, Hengzhu ^{[1
]}

Hu, Wenmin ^{[1
]}

Liu, Dongpei ^{[1
]}

Zhang, Botao ^{[1
]}

机构：

[1] Natl Univ Def Technol, Comp Sch, Changsha, Hunan, Peoples R China

来源：

IEICE ELECTRONICS EXPRESS | 2012年 / 9卷 / 08期

基金：

中国国家自然科学基金;

关键词：

CORDIC; adaptive recoding; Scaling Free; SFB4C; ALGORITHM;

D O I：

10.1587/elex.9.765

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Conventional Coordinate Rotation Digital Computer (CORDIC) algorithm is an effective implementation of trigonometric function, and it has been widely applied in digital signal processing. In this paper, we propose a novel CORDIC architecture based on Scaling Free (SF) theory, which adopts adaptive recoding method to reduce the iterations and eliminate the scaling factor. The proposed scheme has been synthesized using 65 nm CMOS technology with standard cell library. Compared with SFB4C, our scheme saves 21.11% to 34.64% hardware-overhead with no performance penalty.

引用

页码：765 / 771

页数：7

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