摘要
DDS是一种数字波形合成技术 ,具有频率转换速度快、频率分辨率高、相位噪声低等优良性能 ,因此利用DDS作为可变参考源是比较理想的。本文采用DDS作为参考源驱动PLL频率合成器 ,实现了一个用于S波段遥测接收机的DDS PLL频率合成器 ,同时对DDS PLL频率合成器的输出特性进行了理论分析 。
DDS is a kind of digital waveform synthesizing technology which has such good performance as short switch time, high frequency resolution and low phase noise. DDS is a good approach to be a reference of a frequency synthesizer. In this paper a DDS-driven-PLL frequency synthesizer for S-band telemetry receiver is described. The output characteristics of the DDS/PLL frequency synthesizer are also analyzed theoretically and the experiment result is presented.
出处
《电讯技术》
北大核心
2002年第1期13-16,共4页
Telecommunication Engineering
关键词
无线通信
直接数字频率合成
S波段
PLL
Wireless communication
Telemetry receiver
Spurious suppression
DDS
