基于CORDIC算法的直接数字频率合成器实现方法

Direct digital frequency synthesizer realization method based on CORDIC arithmetic

提出了一种基于CORDIC算法的改进直接数字频率合成(DDFS)的实现方法,应用CORDIC算法替代了庞大的传统正弦函数ROM,输出高质量的信号。该方法使DDFS易于在FPGA等器件内实现。

This paper introduces an improved direct digital frequency synthesis （DDFS） realization method based on CORDIC arithmetic, applying CORDIC arithmetic to substitute large SIN ROM to export fine frequency resolution. This method made DDFS be easily implemented on FPGA.