宽带DDS设计与实现  

Design and Realization of Wide-band Direct Digital Synthesizer

作　　者：安涛[1] 石远东[1] 郑继刚[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2012年第4期105-107,120,共4页Shipboard Electronic Countermeasure

摘　　要：介绍了直接数字合成器(DDS)原理。针对传统DDS工作频率低,瞬时带宽窄,杂散大等缺点,讨论了基于现场可编程门阵列(FPGA)的并行处理技术设计宽带DDS,利用高速数/模转换器(DAC)和大规模现场可编程门阵列(FPGA)实现了宽带DDS模块的设计,在宽带干扰机、宽带雷达信号波型产生器设计等领域具有广泛的应用前景。This paper introduces the principle of direct digital synthesizer（DDS）,aiming at the disadvantages such as the low operating frequency,narrow instantaneous bandwidth,large clutter,etc.,discusses to design wide-band DDS based on the parallel processing technique of field programmable gate array（FPGA）,uses fast digital/analog converter and large-scale FPGA to realize the design of wide-band DDS module,which has expand application foreground in domains such as wide-band jammer,wide-band radar signal waveform generator design,etc..

关 键 词：宽带直接数字合成器 并行处理 宽带干扰机 宽带雷达信号波型 

分 类 号：TN742.1[电子电信—电路与系统]