A Multi-mode Coordinate Rotation Digital Computer (CORDIC)

Lifan Niu; Xiaoling Jia; Jun Wu; Zhifeng Zhang

Communications and Networking. 11th EAI international Conference, ChinaCom 2016 Chongqing, China, September 24-26, 2016, Proceedings, Part II

Research Article

A Multi-mode Coordinate Rotation Digital Computer (CORDIC)

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@INPROCEEDINGS{10.1007/978-3-319-66628-0_33,
    author={Lifan Niu and Xiaoling Jia and Jun Wu and Zhifeng Zhang},
    title={A Multi-mode Coordinate Rotation Digital Computer (CORDIC)},
    proceedings={Communications and Networking. 11th EAI international Conference, ChinaCom 2016 Chongqing, China, September 24-26, 2016, Proceedings, Part II},
    proceedings_a={CHINACOM},
    year={2017},
    month={10},
    keywords={CORDIC ICA Sin Cos Arctan Square root},
    doi={10.1007/978-3-319-66628-0_33}
}

Lifan Niu
Xiaoling Jia
Jun Wu
Zhifeng Zhang
Year: 2017
A Multi-mode Coordinate Rotation Digital Computer (CORDIC)
CHINACOM
Springer
DOI: 10.1007/978-3-319-66628-0_33

Lifan Niu¹^,*, Xiaoling Jia¹^,*, Jun Wu¹^,*, Zhifeng Zhang¹^,*

1: Tongji University

*Contact email: 1433332@tongji.edu.cn, jia_xiaoling@tongji.edu.cn, wujun@tongji.edu.cn, zhangzf@tongji.edu.cn

Abstract

This paper presents a 24-bit fixed-point multi-mode Coordinate Rotation Digital Computer (CORDIC) engine for VLSI implementation of Independent Component Analysis (ICA). Three different modes are integrated for computing sine/cosine, arc tangent and square root to save system resource. We describe the design method for deciding iteration time and fixed-point bits, and present the architecture of a pipelined VLSI implementation. An approximation method is proposed to decrease the data to be pre-stored. The CORDIC engine is designed and implemented with SMIC 65 nm CMOS technology. The performance and computation results of this engine are shown to be very high-accurate and area-efficient.

Keywords: CORDIC ICA Sin Cos Arctan Square root

Published: 2017-10-12
Appears in: SpringerLink

: http://dx.doi.org/10.1007/978-3-319-66628-0_33