Adaptive recoding CORDIC

IEICE Electronics Express

Hengzhu Liu¹  Jianfeng Zhang¹  Botao Zhang¹  Dongpei Liu¹  Wenmin Hu¹ 

[1] Computer School, National University of Defense Technology

关键词: CORDIC;    adaptive recoding;    Scaling Free;    SFB4C;   

DOI  :  10.1587/elex.9.765

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(6)Cited-By(3)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 65nm CMOS technology with standard cell library. Compared with SFB4C, our scheme saves 21.11% to 34.64% hardware-overhead with no performance penalty.

【 授权许可】

Unknown