首先介绍了CORDIC算法和正交调制技术的基本原理,对CORDIC算法的内核及前处理单元做了详细分析,给出了一种基于流水线的CORDIC算法的正交信号发生器。在传统CORDIC算法的基础之上,通过采用流水线技术和增加迭代次数,对参数进行了优化设计,提高了计算速度和计算精度,用HDL对其编程以及进行时序仿真和FPGA硬件下载实现。 First introduced the CORDIC algorithm and the basic principles of orthogonal modulation technology, CORDIC algorithm kernel and pre-processing unit made a detailed analysis of a CORDIC algorithm based on the pipeline orthogonal signal generator. Based on the traditional CORDIC algorithm, the parameters are optimized by adopting pipeline technology and increasing the number of iterations, which improves the computational speed and accuracy, programs HDL, and realizes timing simulation and FPGA hardware download.