Title :
Comparison of Time Transfer Using GPS Carrier Phase and Multichannel Two-Way Data in East Asia
Author :
Yang, Sung Hoon ; Lee, Young Kyu ; Heo, Youn Jeong ; Lee, Seong Woo ; Lee, Chang Bok
Author_Institution :
Div. of Phys. Metrol., Korea Res. Inst. of Stand. & Sci., Daeieon
fDate :
4/1/2007 12:00:00 AM
Abstract :
By use of GPS carrier phase (CP) and two-way satellite time and frequency transfer (TWSTFT) measurements, a set of time comparison experiments has been conducted between the Korea Research Institute of Standards and Science and other time laboratories in East Asia. The TWSTFT results using a multichannel modem were compared with those of the GPS CP measurements using a geodetic receiver. In this paper, the authors present the time comparison results obtained with those two time-transfer methods, as well as those obtained from the GPS P3 data analysis. From the results, it was observed that the time comparison performances obtained from the GPS CP were comparable to that of the TWSTFT, and it appeared that the associated Allan deviations were slightly different depending on the type of atomic clock (hydrogen maser and cesium) used in the comparison
Keywords :
Global Positioning System; atomic clocks; frequency stability; frequency standards; receivers; time measurement; Allan deviations; Global Positioning System carrier phase; TWSTFT; atomic clock; frequency stability; geodetic receiver; time comparison; time transfer; two-way satellite time and frequency transfer; Asia; Atomic clocks; Data analysis; Frequency measurement; Global Positioning System; Measurement standards; Modems; Phase measurement; Satellites; Time measurement; Frequency stability; GPS P-code; Global Positioning System (GPS) carrier phase (CP); time comparison; two-way satellite time and frequency transfer (TWSTFT);
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.891130
