基于FPGA设计的DDS优化算法  

A New DDS Algorithm Based on FPGA

作　　者：张峻涛[1] 张向杰[1] 杨东[1] 

机构地区：[1]中国电子科技集团公司第三十六研究所

出　　处：《通信对抗》2009年第3期38-41,共4页Communication Countermeasures

摘　　要：在FPGA中集成多个DDS的方法在电子对抗中有较好的应用前景。在对极性和三角函数变换进行分析的基础上,提出了一种利于FPGA实现的DDS优化算法,可以在保证较高杂散抑制指标的同时大幅度减少波形存储表容量,同时给出了基于MATLAB和FPGA实现的算法仿真结果。The method of concentrating many DDS in the same FPGA will be widely applied in the field of Electronic Countermeasure. In this paper, a new algorithm which could optimize spur reduction was put forward on the basic of polarity and Trigonometric Functions, and it also could reduce spurious and the capacity of ROM. The simulation result by the software of MATLAB and FPGA was introduced.

关 键 词：DDS 杂散抑制 FPGA 

分 类 号：TN402[电子电信—微电子学与固体电子学] O242.23[理学—计算数学]