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
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.
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