An Area Optimized Direct Digital Frequency Synthesizer Based on Improved Hybrid CORDIC Algorithm

摘要：

This paper proposes a novel implementation technique for area optimized direct digital frequency synthesizer (DDFS) based on improved hybrid coordinate rotation digital computer(CORDIC) algorithm. Researches at algorithmic level focus on how to reduce algorithm complexity, such as cutting down all of rotational phase decision circuits and multipliers, simplifying scale factor with soft hardware co-design approach. At architectural level, the pipeline multilevel loop iteration implementation proposal is adopted for reusing shifting and adder -subtractor components highly. The design has been successfully integrated in a channel demodulation module of broadband network system on chip (SoC) platform.With generality, the technique can be also applied to other wireless network communication system.

关键词： area optimized improved hybrid CORDIC,direct digital frequency synthesizer (DDFS) soft-hardware co-design

作者: Ru Xin Xiao-tong Zhang Han Li Qin Wang Zhan-cai Li

作者单位: Information Engineering School, University of Science and Technology Beijing, China Beijing BM Electronics High-Technology Company Ltd., China

会议类型: 国际会议

会议名称: 第三届信号设计及其在通信中的应用国际会议(Proceedings of 2007 International Workshop on Signal Design and Its Applications in Communications IWSDA07)

会议地点: 成都

会议语种:英文

页码: 243-246

在线出版日期: 2007-09-23（万方平台首次上网日期，不代表论文的发表时间）