| 基于CORDIC算法的DDS实现 |
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| 引用本文： | 毛晶晶,邹德岳.基于CORDIC算法的DDS实现[J].无线电工程,2011,41(12):8-11. |
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| 作者姓名： | 毛晶晶 邹德岳 |
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| 作者单位： | 1. 中国电子科技集团公司第五十四研究所,河北石家庄,050081
2. 哈尔滨工业大学,黑龙江哈尔滨,150001 |
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| 摘 要： | 直接数字频率合成(DDS)技术在软件无线电方面有着广泛的应用,而坐标旋转数字计算方法(Coordinate Rotation Digital Computer,CORDIC)通过移位和加减运算代替乘法运算是构造DDS的一种理想的手段。介绍了CORDIC算法的基本原理,采用流水线方法对CORDIC算法进行了设计实现,用以取代传统的ROM查找表法。实验验证,基于CORDIC算法的DDS满足高速、高精度、高分辨率和实时运算的要求。
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| 关 键 词： | DDS CORDIC FPGA |
Implementation of DDS Based on CORDIC Algorithm |
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| MAO Jing-jing,ZOU De-yue.Implementation of DDS Based on CORDIC Algorithm[J].Radio Engineering of China,2011,41(12):8-11. |
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| Authors: | MAO Jing-jing ZOU De-yue |
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| Affiliation: | MAO Jing-jing1,ZOU De-yue2(1.The 54th Research Institute of CETC,Shijiazhuang Hebei 050081,China,2.The Institute of Harbin University,Harbin Heilongjiang 150001,China) |
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| Abstract: | The direct digital frequency synthesizer(DDS) is widely used in the field of software radio.An ideal means of constructing DDS is to replace multiplication operations by shifting and operation add(subtraction) in CORDIC algorithm.This paper introduces the basic principles of CORDIC algorithm and employs a pipelined method for the design and implementation of CORDIC algorithm to replace the traditional method of ROM look-up table.Finally,it proves that the DDS based on CORDIC algorithm has the advantages of ... |
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| Keywords: | DDS CORDIC FPGA |
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