A THEORETICAL STUDY ON LASER RANGING MEASUREMENTS WITHIN PICO-SECOND LEVEL
10-12秒精度激光测距问题的理论研究

With the improvement of observation technique's accuracy of space geodesy, theoretical models of Laser ranging should be adapt to predictable requirement of accuracy at present and in the future. Based on the basic principle of laser ranging, a relativistic theoretical model of laser ranging in BRS and GRS is put forward in this paper. The magnitude of gravitational time delay of the two models is estimated. Theoretical formula of complete and consistent time scale and spatiotemporal coordination conversion are given meanwhile. According to the lastest conversion relation between BRS and GRS, we derive the relativistic theory model of laser ranging for GRS within pico-second level, and enlarge the application range of the laser ranging model recommended by IERS.