高性能相位微跃计的关键技术研究

Research on the key techniques of high-performance micro-phase stepper

定位、导航和定时服务(PNT)已成为国家重要新型基础设施,相位微跃计是PNT基础设施中的核心设备。它是一种对输入频率信号进行精密调整并输出时间频率信号的设备,目前只有美国、德国、俄罗斯等国家有相关成熟产品。随着高性能原子频标和光频标的发展,现有相位微跃计性能还是停滞于1~2×10^(-13)/s的水平,已经无法满足对高性能原子频标和光频标的调控需求。本文重点对极小分辨率频率调控技术和低噪声信号处理技术等进行研究,实现了频率分辨率优于1×10^(-19)、相位调整分辨率优于0.023 fs、附加频率稳定度优于3×10^(-14)/s的国产高性能相位微跃计。

Position,navigation and timing(PNT)have become important new infrastructure in China,and a micro-phase stepper is a key equipment in PNT infrastructure.It is a kind of equipment for precision adjustment to the input signal and output time and frequency signal.At present,only the United States,German and Russia have relevant mature products.With the development of high-performance atomic frequency standard and optical frequency standard,the performance of the existing micro-phase steppers stays still at the level of 1~2×10^(-13)/s,which can no longer meet the requirements for the regulation of high-performance atomic frequency standard and optical frequency standard.This paper focuses on the minimal resolution frequency control technology and low noise signal processing technology,and realizes the phase micro-phase stepper with frequency resolution better than 1×10^(-19),phase adjustment resolution better than 0.023 fs,and additional frequency instability better than 3×10^(-14)/s.