Integrated Doppler Correction to TWSTFT Using Round-Trip Measurement
CHUNGHWA TELECOM TAOYUAN (TAIWAN) TELECOMMUNICATION LABS
Pagination or Media Count:
Diurnal variation is one of the significant instabilities in Two-Way Satellite Time and Frequency Transfer TWSTFT data. It is necessary to correct the diurnal variation for comparing the time-scale difference. We focus on the up-downlink delay difference caused by satellite motion. In this paper, we propose to correct the TWSTFT data by using round-trip delay measurement. There are four laboratories the National Institute of Information and Communications NICT, Korea Research Institute of Standards and Science KRISS, the National Time Service Center NTSC, and TL, who join the TWSTFT network by using the NICT modem. Moreover, TL and NICT are continuing the DPN experiment. In the end, we investigate these TWSTFT data and the corrected data are performed.
- Operations Research
- Test Facilities, Equipment and Methods