Unified Model and Precision Analysis of Multi-GNSS Time System
Chen Zheng-shen · Journal of Navigation and Positioning · 2013
This paper compares the definitions of time system of multi-GNSS,which includes GPS,GLONASS,BDS, Galileo,etc.,and selects the continuous time system GPST as the datum to unify multi-GNSS time systems,then analyzes the range error caursed by the precision of time's data structure.After making comparisons of several common time expres- sions,high precision time storage models are designed to meet the needs of different applications.