摘要
采用CORDIC算法实时计算正弦值的方法,替代传统DDS中的正弦查找表,显著节省了硬件资源,极大提高了转换速度以及DDS的频率和相位分辨率。将基于改进的并行流水结构的CORDIC算法作为IP应用于高端DDS芯片中,同时利用Matlab的M语言进行仿真与调试,可以直观地看到该改进算法的输出波形。
This paper presents a real-time way using coordinate rotation digital computer（CORDIC） in calculating the sine that was conventionally got from look- up table, which greatly improves the resolution of frequency and phase. We achieve a high- speed direct digital frequency synthesizer based on an improved and parallel pipeline structure CORDIC algorithm. Using Matlab Mlanguage simulation and debugging, we can easily get the result of the improved output waveform.
出处
《电子技术应用》
北大核心
2011年第1期65-67,共3页
Application of Electronic Technique
基金
重庆市科技攻关计划项目(信息制造业重大科技立项)CSTC(2010AA2004)
