We analysised the measurement data about the aging of about 1300 pcs Rubidium Atomic Clock in batch production,and we got the distribution of Rb clock\'s aging rate,more than 50%Rb clock\'s aging rate is less than 5E-13/day.

It is simple analysised the long stability of space rubidium clock.

EIT was oberved in a cascade system of hype-fine structure of cesium atoms and in the Zeeman sublevels of rubidium atoms,and profound work on intensity and width of the EIT signal as a function of atom density, temperature intensity of coupling laser beam,laser line-width and laser detuning ,etc ,was carried out.

In this paper, we study the rubidium atoms resonance ionization for threestep through general rate eqration.

Research on integrated navigation systemby rubidium clock;

In order to overcome those limitations, and on the premise that the receiver can measure the pseudo-range between the user and satellite and with the help of barometer, this paper put forward the pseudo-range integration model of RDSS and the strap-down inertial navigation system with high precision clock, rubidium clock being the internal clock of the RDSS receiver.

Since the Rubidium clock makes it possible to predict the receiver clock offset,positioning accuracy could be enhanced through an improvement in clock offset estimation,and Rubidium clock aiding will definitely improve the vertical accuracy.