摘要
文章提出一种采用数字坐标旋转(CORDIC)算法实时计算正弦值的方法,替代传统的DDS采用的正弦查找表,显著地节省了FPGA的内部资源,极大的提高了DDS的频率和相位分辨率,从而扩展DDS技术的应用范围;同时,分析该方案实现中可能存在的问题,并给出解决方案。
This paper presents a real-time way using Coordinate Rotation Digital Computer （CORDIC） in calculating the sine that was conventionally got from look-up tab, which achieves the goal of total used resources reduction of the FPGA and a much better resolving power on signal＇s frequency and phase. So it greatly expands the application fields of DSS. Meanwhile, this paper analyzes the problems met in implementation, and give solutions to these problems.
出处
《微电子学与计算机》
CSCD
北大核心
2006年第8期181-183,186,共4页
Microelectronics & Computer
