基于CORDIC算法的数控振荡器及其FPGA实现  

Numerical control oscillator based on CORDIC algorithm and its FPGA implementation

作　　者：刘春雅[1] 冯向莉[1] 

机构地区：[1]陕西国防工业职业技术学院机电工程学院,西安710300

出　　处：《自动化与仪器仪表》2015年第8期131-133,共3页Automation & Instrumentation

基　　金：陕西国防工业职业技术学院2015年度科研项目<数控振荡器的设计与实现研究>的研究成果之一(Gfy15-06)

摘　　要：论文分析了在FPGA上NCO传统实现方式的弊端,引入了CORDIC算法对此进行了改良,达到了节省FPGA逻辑资源的目的,并同时实现了高效和高精度的算法结果。本论文详细介绍了CORDIC算法的原理和FPGA实现架构,并对FPGA的HDL逻辑代码进行了仿真,最后对仿真结果和实际结果进行了误差分析。分析结果充分证明了CORDIC算法的可行性和高效及高精度的性能。This paper analysed the drawbacks of the traditional implementation of NCO based on FPGA, introduced the CORDIC algorithm to achieve the purpose of saving FPGA logic resources. Meanwhile, it achieved an efficient and highly accurate algorithm results. This paper discussed the principles of CORDIC algorithm and architecture of FPGA implementation, simulated the FPGA HDL logic, the error between the simulation and actual results have been analysed. Finally proved that the feasibility of the CORDIC algorithm and its performance of highly efficient.

关 键 词：CORDIC FPGA NCO DDS 

分 类 号：TN752[电子电信—电路与系统] TN791