摘要
阐述了一种用于时间同步系统的高性能数字移相系统的设计方案和实现过程,该系统采用直接数字合成(DDS)技术,其同步精度小于100 ns,移相精度可达5×10-10 s,同时能够实现精度为10-6 Hz的频率调节。该系统是为时间同步系统设计,并可广泛应用到军用、电力、通信等领域中。
The design and implementation of a high-performance digital phase-shift system based on DDS(direct digital synthesis) is introduced.For this system,the time synchronization precision is better than 100 ns,the phase-shifting accuracy is 5×10-10 s,and the frequency-modulation precision is 10-6 Hz.This system is designed for time synchronization system,and can also be used in martial system,electric system,communication system,etc.
出处
《时间频率学报》
CSCD
2010年第1期23-27,共5页
Journal of Time and Frequency
关键词
移相
时间同步
直接数字合成(DDS)
phase-shift
time synchronization
direct digital synthesis(DDS)