基于FPGA的直接数字频率合成器的优化设计  

Direct digital frequency synthesizer based on FPGA optimization design

作　　者：彭昭[1,2] 胡进峰[1] 

机构地区：[1]电子科技大学电子工程学院 [2]四川理工学院自动化与电子信息学院

出　　处：《电子世界》2012年第18期108-108,133,共2页Electronics World

摘　　要：介绍了DDS的基本工作原理,针对传统DDS存在的主要问题,提出了基于流水线结构的累加器和基于波形对称的ROM优化设计,并在开发软件QuartusⅡ上仿真,验证了优化设计的正确性。不仅提高了系统的运算速度,而且也节省了硬件资源。The basic principle of DDS was introduced.In the light of tradifonal DDS problems, is proposed based on pipeline structure of the accumulator and based on wavefoma symmetry ROM optimization design, and in the development of software Quartus II simulation, verified the correcmess of design optimization.Not only improves the operation speed of system, but also can save hardware resource.

关 键 词：FPGA DDS 流水线结构 仿真 

分 类 号：TN741[电子电信—电路与系统]