| 基于改进CORDIC算法的DDS设计 |
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| 引用本文： | 刘宗瑶,朱卫华,屈振华,李月华. 基于改进CORDIC算法的DDS设计[J]. 国外电子测量技术, 2011, 30(10): 64-67 |
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| 作者姓名： | 刘宗瑶 朱卫华 屈振华 李月华 |
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| 作者单位： | 南华大学电气工程学院 衡阳 421001 |
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| 基金项目： | 2011年湖南省研究生科研创新项目资助(编号:CX2011B374) |
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| 摘 要： | 针对基本CORDIC算法的DDS计算速度随迭代次数增加而降低的问题,对CORDIC算法提出了一些改进.采用了角度分解预测旋转方向和多级迭代并行计算的方法,代替传统算法的多重迭代.时序仿真结果表明:改进的算法实现相位幅度转换；与基本CORDIC算法相比,在保持数据较高精度的同时提高了运算速度.此种设计具有运算速度快、计算...
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| 关 键 词： | CORDIC算法 角度分解 方向预测 并行计算 |
Design of DDS based on improved CORDIC algorithm |
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| Liu Zongyao,Zhu Weihua,Qu Zhenhua,Li Yuehua. Design of DDS based on improved CORDIC algorithm[J]. Foreign Electronic Measurement Technology, 2011, 30(10): 64-67 |
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| Authors: | Liu Zongyao Zhu Weihua Qu Zhenhua Li Yuehua |
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| Affiliation: | Liu Zongyao Zhu Weihua Qu Zhenhua Li Yuehua (The College of Electrical Engineering,University of South Hengyang 421001,China) |
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| Abstract: | For the shortcomings that the computation speed of the DDS decreases with iterations increasing in CORDIC algorithm,this paper proposes some improvements in CORDIC algorithm.In this paper,the traditional algorithm of multiple iterations is displaced by a point of decompose predict the direction of rotation and multi-level iterative parallel computing method.The timing simulation results show that the improved algorithm achieve phase-amplitude conversion and improve the computation speed of traditional CORDI... |
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| Keywords: | CORDIC algorithm angle decomposition predicted direction parallel computing |
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