| 一种新的快速并行结构的优化CORDIC算法 |
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| 引用本文： | 郭来功,欧阳名三,蔡俊.一种新的快速并行结构的优化CORDIC算法[J].电视技术,2012,36(17):76-78,91. |
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| 作者姓名： | 郭来功 欧阳名三 蔡俊 |
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| 作者单位： | 安徽理工大学电气与信息工程学院,安徽淮南,232001 |
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| 基金项目： | 安徽高校省级自然科学研究项目 |
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| 摘 要： | 对传统的CORDIC算法进行改进,采用角度二进制低位转换成两极的模式和基本角度线性编码方式,更易于确定旋转方向,加快迭代速度。迭代过程中低位采用最高非零位最大逼近角的算法,高位采用基于4∶2压缩器的高速进位加法器的结构,在精度提高时其速度优势更加明显。实现结构采用流水线方式,不需要ROM存储空间,节省逻辑资源,满足高速高精度领域的运算要求。
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| 关 键 词： | CORDIC算法 最大逼近角 流水线 基本角度线性编码 |
| 收稿时间： | 3/2/2012 12:00:00 AM |
| 修稿时间： | 2012/5/10 0:00:00 |
A New Fast Parallel Structure of Optimized CORDIC Algorithm |
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| guolaigong,ouyangmingsan and caijun.A New Fast Parallel Structure of Optimized CORDIC Algorithm[J].Tv Engineering,2012,36(17):76-78,91. |
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| Authors: | guolaigong ouyangmingsan and caijun |
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| Affiliation: | College of electronically and Information Engineering An Hui University of Science and Technology,College of electronically and Information Engineering An Hui University of Science and Technology,College of electronically and Information Engineering An Hui University of Science and Technology |
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| Abstract: | The article makes the improvement to the traditional CORDIC algorithm, using binary to bipolar recoding and micro-rotation angle recoding for low binary of the angle, easier to determine the direction of rotation and accelerate the speed of iteration, In the iterative process, using the algorithm of maximum approximation angle of highest non zero binary for low binary, using fast carry-propagate adder based on 4:2 compressor for high binary, improvement of iteration speed, especially in the precision is improved. To realize the structure using pipelining, do not need ROM storage, saves logic resources, to satisfy high speed and high precision field. |
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| Keywords: | CORDIC algorithm maximum approximation angle pipelining micro-rotation angle recoding |
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