This paper describes the issues in terms of time synchronization in satellite navigation systems, satellite navigation device zero point, and device zero point calibration.
概述了卫星导航系统的时间同步问题和卫星导航的设备零值及其标校问题。
2
A more precise estimation method of the Zero Doppler Time has been improved, and the frequency synchronization is achieved.
文章改进了零多普勒时间的估计方法，提高了其估计精度，从而较好地实现了频率同步。
3
Its communication overhead is almost zero compared with the general data synchronization algorithms.