基于混合CORDIC算法的DDFS研究  

Study of DDFS based on hybrid CORDIC algorithm

作　　者：孙震[1] 陆斌斌[1] 

机构地区：[1]哈尔滨工业大学自动化测试与控制研究所,哈尔滨150001

出　　处：《电子测量技术》2009年第7期58-61,共4页Electronic Measurement Technology

摘　　要：本文首先详细分析了CORDIC算法原理,进而引出一种全新的混合CORDIC算法。详细分析研究了新混合CORDIC算法的实现过程。画出基于此混合CORDIC算法的直接数字频率合成器的原理框图,并对混合CORDIC算法部分做了详细的图形说明,结合原理框图对混合CORDIC算法的三步旋转进行了详细的分析推导。本文最后分析了应用混合CORDIC算法可能引入的误差,并论证此方法的可行性。This paper presented a detailed description of CORDIC algorithm firstly, and then introduces a novel improved hybrid CORDIC. the paper described the algorithm of the hybrid CORDIC in detail and showed the structure of DDFS based on hybrid CORDIC in the paper, the paper analysed the three rotations of the hybrid CORDIC in detail based on the block of the hybrid CORDIC algorithm, at last This article analyzed errors that might be produced by the application of hybrid CORDIC to DDFS , and deduced the feasibility of application of hybrid CORDIC to DDFS.

关 键 词：直接数字频率合成器hybrid CORDIC角度旋转 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]