| 一种改进的CORDIC算法及其FPGA实现 |
| |
| 引用本文： | 段文伟,于龙洋,李署坚.一种改进的CORDIC算法及其FPGA实现[J].微电子学与计算机,2012,29(2):95-98,102. |
| |
| 作者姓名： | 段文伟 于龙洋 李署坚 |
| |
| 作者单位： | 北京航空航天大学电子信息工程学院,北京,100191 |
| |
| 摘 要： | CORDIC算法在很多工程应用中发挥着很大的作用.在传统的CORDIC算法基础上,通过增加内部相位累加器的位数,以及采用两位的方向控制因子的方法,在不影响实现复杂度的基础上可以产生更高相位分辨率的正余弦信号.采用QUARTUSⅡ进行综合仿真,验证了设计的可行性,并用MATLAB分析了设计的相位分辨率和计算误差等,证明设计可以有效地提高CORDIC算法的性能.
|
| 关 键 词： | CORDIC算法 现场可编程门阵列 MATLAB 正余弦 |
A Kind of Improved CORDIC Algorithm and Its Implementation in FPGA |
| |
| DUAN Wen-wei,YU Long-yang,LI Shu-jian.A Kind of Improved CORDIC Algorithm and Its Implementation in FPGA[J].Microelectronics & Computer,2012,29(2):95-98,102. |
| |
| Authors: | DUAN Wen-wei YU Long-yang LI Shu-jian |
| |
| Affiliation: | (School of Electronic and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
| |
| Abstract: | CORDIC is an efficient algorithm that plays an important part in various engineering applications.Method based on traditional CORDIC algorithm is introduced.By increasing the number of bits of inner phase accumulator and using two bits to represent directional control factor,a sine and cosine generator is designed based on FPGA.The result of QUARTUSⅡshows that the design is feasible.Finally,the phase resolution and error performance is analysed by using MATLAB,the results demonstrate that this optimization design can improve the performance of CORDIC effectively. |
| |
| Keywords: | CORDIC algorithm FPGA MATLAB sine cosine |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
