基于DDS+PLL的高速宽带频率合成器的研究  

Research on Frequency Synthesizer of High Speed and Wide Band Based on DDS Hybrid PLL

作　　者：刘全[1] 高俊[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《无线通信技术》2007年第4期57-60,共4页Wireless Communication Technology

摘　　要：介绍了频率合成技术的发展背景,针对跳频通信等系统中对频率合成器的新要求,在充分考虑输出频率带宽、建立时间、频谱杂散等指标的基础上给出一种较合理的DDS+PLL频率合成器设计方案,在Matlab+Simulink环境下对其进行了仿真,并对结果进行了系统分析,为进一步研究和设计高性能的频率合成器提供了一定的理论和实验基础。The thesis introduces the development of frequency synthesis. To meet the new requirements of the systems like frequency-hopping , a logical scheme of DDS ＋ PLL is advanced, fully considering the indexes such as bandwidth,switch time,spectrum scattering and so on. Then a simulation model is built in Matlab ＋ Simulink. The systematic analysis of the simulation resuits will give a reference to the later research and design of high-powered synthesizer.

关 键 词：频率合成 DDS+PLL 杂散抑制 

分 类 号：TN743[电子电信—电路与系统]