​A joint research team from the National Time Service Center(NTSC) of the Chinese Academy of Sciences(CAS), Xinjiang Institute of Ecology and  Geography CAS, Shandong University of Science and Technology, and Hohai  University successfully achieved centimeter-level water level monitoring  of the Kalabuli Reservoir in Xinjiang using Global Navigation Satellite  System Interferometric Reflectometry (GNSS-IR) technology.

A rubidium atomic fountain clock with excellent long-term frequency stability can improve the performance of time scale.

​Time crystal, a new phase of matter proposed by Frank Wilczek, the Nobel laureate of Physics in 2004, can break original time-translation symmetry and create new time-oscillation spontaneously.

As one of the fundamental functions of microwave photonic signal processing, microwave photonicmixers are indispensable to modern radar and wireless communication systems.

The atomic clock research team from the NTSC proposed and implemented a compact optical clock based on quantum interference enhanced absorption spectroscopy, which is expected to play an important role in micro-positioning, navigation.

In response to the significant demand for high-precision timing in the BeiDou Satellite Navigation System, the"BDS/GNSS Time Monitoring and Assessment System", which is based on the national standard time UTC.

The shortwave time service system is a vital land-based wireless time service solution, serving as a supplement and backup to the global navigation satellite system. It ensures that time users can access reliable timings, especially in extreme situations

The study not only opens up a brand-new way of thinking for the design of eLoran system receivers but also provides strong technical support for enhancing the high-precision timing service ability of the system.

Comparison of the nuclear electric quadrupole moments of 173Yb across different research..

  This experiment not only highlights the better accuracy and stability of DGVINS over GVINS, but also demonstrates its potential as a more promising solution for precise, continuous, and seamless positioning and navigation.