摘要
NCO有着广泛的应用。本文从基本的坐标变换公式出发 ,严谨地推导了 CORDIC的原理 ,简明扼要地阐明了“微旋转”和“模畸变预矫正”。采用流水线 CORDIC单元实现了 NCO中的 F G部分。并对在具体的 F PGA上布局布线之后的数据进行了频谱分析 ,验证了理论的正确性。
NCO is widely used in many fields Based on the basic coordinate conversion, this paper derives the principle of CORDIC algorithm precisely; 'Micro Rotation' and 'Scale Precompensating' are described concisely A kind of pipeline CORDIC unit is used to implement the FG of NCO Spectrum analysis of the data which is the simulation results on a specific FPGA chip proves that the theory is valid
出处
《现代电子技术》
2005年第2期117-118,共2页
Modern Electronics Technique
