基于DDS的岸防雷达频率合成器  

DDS-Based Frequency Synthesizer for Coast Defense Radar

作　　者：崔敏[1] 庞建涛[1] 

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2010年第1期61-65,共5页Fire Control Radar Technology

摘　　要：本文介绍了一种针对于岸防应用背景,基于DDS技术的低相噪、低杂散、宽频带、捷变频X波段频率合成器的具体实现方法。文中利用DDS技术,替代了以往倍频、分频、混频等的常规方法,产生出P波段中频频标信号,以及时宽/带宽多种可变的线性调频信号。An implementation method of direct digital synthesis （DDS） technique-based X band frequency synthesizer for coast defense is introduced; the frequency synthesizer features low phase noise, low spurious, wide frequency band and frequency agility. By using of DDS technique instead of traditional approaches such as frequency multiplication, frequency division and mixing, the frequency synthesizer is able to generate P band intermediate frequency （IF） frequency reference signal and linear frequency modulated （LFM signal with variable time-width and band-width products.

关 键 词：频率合成 DDS 频谱分析 岸防 杂散 

分 类 号：TN74[电子电信—电路与系统]