Design Data-Processing Programs for Remote Time Calibrations Center

Based on the Coordinated Universal Time (NTSC) from National Time Service Center, remote time calibrations center provides local time calibration for remote laboratory using Satellite common-view technique. The local time of long-distance workstations can be compared via this system and the time difference can be got in real-time. In accordance with ex post ephemeris, the time difference also can be modified. In addition, store and analysis the time difference data of a certain period as needed, the laws of unstable time difference due to pseudo-range, baseline-length, elevation and climate can be gain. The data came from the calibration terminal is received and saved by remote time calibration center. According to the UTC (NTSC), difference between each laboratory local time and UTC (NTSC) in various interval can be obtained and by these data, the center can analysis the local time performance. On design and implementation the software of remote time calibrations center basis, the results are primary analyzed.