基于FPGA的流水线CORDIC算法的DDFS设计

摘要

在射频系统后端信号处理调制解调系统中,直接数字频率合成器(DDFS)起着非常重要的作用.介绍了CORDIC算法的基本原理,提出了一种利用流水线结构生成高频率分辨率、高动态范围正弦波的方法,并给出了利用FPGA实现该流水线结构CORDIC算法的过程.%In the radar back-end signal processing modulation and demodulation system, Direct Digital Frequency Synthesizer (DDFS) is very important. Introducing the basic principles of the CORDIC algorithm.A pipeline architecture was proposed to generate a sin wave of high frequency and high dynamic range. Furthermore, the FPGA implementation of the pipeline architecture of the CORDIC algorithm was given.