电子学报2018，Vol.46Issue(2)：495-500,6.DOI:10.3969/j.issn.0372-2112.2018.02.032
多模式CORDIC算法结构改进与实现
Improvement and Implementation of Multi-mode Architecture for CORDIC Algorithm
摘要
Abstract
This paper improves the iterative structure of the CORDIC algorithm,and implements a multi-mode CORDIC algorithm.We reset the initial rotation to avoid the first two stage iterations and fix the error of the original algo-rithm by modify the judgment condition which determine the rotation direction of the vector.In the case of increasing few hardware resources,the sine,cosine,arcsine and arccosine operations are unified to the same iterative structure and be real-ized.The results show that the improved algorithm has higher accuracy and the hardware resources utilization can be effec-tively reduced in the application that need both of the two kinds of functions.关键词
多模式/坐标旋转数字计算/双迭代法/三角函数Key words
multi-mode/coordinate rotation digital computer(CORDIC)/double iteration algorithm/trigonometric func-tions分类
信息技术与安全科学引用本文复制引用
刘小宁,谢宜壮,陈禾,李炳沂..多模式CORDIC算法结构改进与实现[J].电子学报,2018,46(2):495-500,6.基金项目
国家863高技术研究发展计划(No.2011AA120202) （No.2011AA120202）
国家科技重大专项(No.D020205) （No.D020205）
