改进型CORDIC算法的研究与实现

CORDIC的运算速度问题是研究的热点。为了解决CORDIC运算速度慢的问题,采用跳过零点思想,跳过输入相位值中为0的位,有效的减少了迭代次数。利用ISE仿真技术多次仿真综合。验证出改进型的CORDIC算法,在保证算法的运算精度基础上,明显地改善了CORDIC的运算速度,尤其针对于一些特殊的旋转角度,利用极少的旋转就达到结果。最终利用FPGA实现改进后CORDIC算法。

Research and Implementation of Modified CORDIC Algorithm

With the rapid development of VLSI technology,CORDIC algorithm is widely used.A method of jumping over 0 in the input phase values is adopted to reduce the iterations effectively in this paper.The modified CORDIC algorithm was simulated with ISE simulation technology for several times.The results show that the operational speed of the modified CORDIC algorithm is obviously improved on the premise of ensuring the operational accuracy of the algorithm.The CORDIC algorithm was implemented with FPGA.