Design and Implementation of A Novel DDFS Based on Enhanced CORDIC

摘要：

In this article we propose a novel architecture to implement Direct Digital Frequency Synthesizer (DDFS). The conventional method uses look-up-table, which cannot satisfy with the command of high distinguishable frequency and time, and it would consume much more area. But the proposed one is different which would use enhanced Coordinate Rotation Digital Computer (CORDIC) to take the place. The enhanced CORDIC covers the entire coordinate space, no further more pre-processing and postprocessing operations would be required compared with the conventional one. The proposed architecture of DDFS algorithm has been validated on the platform of FPGA, works normally and uses less area, besides the performance has been improved.

关键词： Direct Digital Frequency Synthesizer (DDFS) Coordinate Rotation Digital Computer (CORDIC) preprocessing post-processing FPGA

作者: Jianfeng zhang Hengzhu Liu Botao Zhang Dongpei liu Tiebin Wu Xi ning

作者单位: Institute of Microelectronics and Microprocessor, School of Computer National University of Defense Technology Changsha HN, P.R. of China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer Engineering and Applications(2011第三届计算机工程与应用国际会议 ICCEA2011)

会议地点: 海口

会议语种:英文

页码: 675-679

在线出版日期: 2011-07-15（万方平台首次上网日期，不代表论文的发表时间）