A CORDIC with Unified Rotation Strategy

Siyang Wang, Jia Yu, Kui Ting Chen, Takaaki Baba

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

CORDIC (Coordinate Rotation DIgital Computer) is an iterative algorithm which is used to calculate mathematical functions such as trigonometric, hyperbolic, exponential functions and so on. The iterative procedure of conventional CORDIC is time-consuming due to its inadequate rotation strategy. Recently, some improved rotation strategies are proposed to reduce disproportionate rotations, which can significantly reduce about 30% to 60% of the iterative procedure for CORDIC algorithm. However, the improved rotation strategies can only be used for a few functions, since they only design to be compatible with circular coordinate system and rotation mode of CORDIC algorithm. In order to overcome such difficulty, this paper presents a unified rotation strategy to enable the functions of the improved rotation strategies for different coordinate systems and operating modes of the CORDIC algorithm. The proposed rotation strategy contains two components which are unified coarse rotation and unified precise rotation, which can drastically reduce disproportionate rotations meanwhile it can maintain higher calculation precision than conventional approaches.

元の言語English
ホスト出版物のタイトルProceedings - 2016 IEEE International Conference on Internet of Things; IEEE Green Computing and Communications; IEEE Cyber, Physical, and Social Computing; IEEE Smart Data, iThings-GreenCom-CPSCom-Smart Data 2016
出版者Institute of Electrical and Electronics Engineers Inc.
ページ744-749
ページ数6
ISBN(電子版)9781509058808
DOI
出版物ステータスPublished - 2017 5 1
イベント9th IEEE International Conference on Internet of Things, 12th IEEE International Conference on Green Computing and Communications, 9th IEEE International Conference on Cyber, Physical, and Social Computing and 2016 IEEE International Conference on Smart Data, iThings-GreenCom-CPSCom-Smart Data 2016 - Chengdu, China
継続期間: 2016 12 162016 12 19

Other

Other9th IEEE International Conference on Internet of Things, 12th IEEE International Conference on Green Computing and Communications, 9th IEEE International Conference on Cyber, Physical, and Social Computing and 2016 IEEE International Conference on Smart Data, iThings-GreenCom-CPSCom-Smart Data 2016
China
Chengdu
期間16/12/1616/12/19

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Safety, Risk, Reliability and Quality
  • Communication

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  • これを引用

    Wang, S., Yu, J., Chen, K. T., & Baba, T. (2017). A CORDIC with Unified Rotation Strategy. : Proceedings - 2016 IEEE International Conference on Internet of Things; IEEE Green Computing and Communications; IEEE Cyber, Physical, and Social Computing; IEEE Smart Data, iThings-GreenCom-CPSCom-Smart Data 2016 (pp. 744-749). [7917185] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/iThings-GreenCom-CPSCom-SmartData.2016.157