摘要
提出一种基于 CORDIC算法的数字下变频实现方法。首先介绍了 CORDIC算法的基本原理 ,然后讨论了数字下变频中本地数字压控振荡器的 CORDIC算法实现。由于采用算法到结构的映射思想 ,使得该算法能成功地用 F PGA来实现 。
This paper puts forward a DDC technique based on CORDIC algorithm At first, the basic theory of CORDIC algorithm is presented, then the realization of NCO in DDC based on CORDIC algorithm is discussed By means of the design methodology from arithmetic to structure, make it easy to realize DDC by FPGA This technique has been verified in practice
出处
《现代电子技术》
2004年第13期94-95,98,共3页
Modern Electronics Technique
