Frequency Comparison of ^171yb^+ Ion Optical Clocks at PTB and NPL Via GPS PPP
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control（2016）
关键词
Frequency transfer,GPS precise point positioning (PPP),optical clock
AI 理解论文
溯源树
样例
生成溯源树，研究论文发展脉络
Chat Paper
正在生成论文摘要