计算机工程与应用Issue(7)：140-143,4.DOI:10.3778/j.issn.1002-8331.1108-0266
CORDIC 算法在正余弦函数中的应用及其 FPGA 实现
Application of CORDIC algorithm in sine & cosine function and its implementation on FPGA
常柯阳 1曾岳南 1陈平 1覃曾攀1
作者信息
- 1. 广东工业大学 自动化学院，广州 510006
- 折叠
摘要
Abstract
Sine & cosine function is used broadly in engineering. Ordinarily, lookup-table algorithm implements easily, but a large amount of memory units are necessary and the contradiction between accuracy and the mount of memory units is acute. Traditional CORDIC(Coordinate Rotation Digital Computer)algorithm can achieve higher accuracy with less memory units, but needs more hardware resource and has long output delay. A new architecture combined with lookup-table and CORDIC algo-rithm is proposed. The design, simulation and hardware testing based on FPGA of the improved algorithm have been completed which indicates that it can achieve higher accuracy and lower output delay with less hardware resource and few memory units.关键词
CORDIC算法/查找表/正余弦函数/现场可编程逻辑器件(FPGA)Key words
CORDIC algorithm/lookup-table/sine & cosine function/Field Programmable Gate Array(FPGA)分类
信息技术与安全科学引用本文复制引用
常柯阳,曾岳南,陈平,覃曾攀..CORDIC 算法在正余弦函数中的应用及其 FPGA 实现[J].计算机工程与应用,2013,(7):140-143,4.
