A High-precision Digital Phase-shift System
Yonghui Hu · Journal of Time and Frequency · 2010
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.