TWSTFT Network Status in the Pacific Rim Region and Development of a New Time Transfer Modem for TWSTFT

M. Imae, M. Hosokawa, Y. Hanado, Z. Li, P. Fisk, Y. Nakadan, C.S. Liao

Abstract:	Two-Way Satellite Time and Frequency Transfer (TWSTFT) is one of the most precise and accurate time transfer techniques. Recently TWSTFT results among the European and North American time and frequency institutes have been started applying to the TAl calculation. A TWSTFT network in the Pacific Rim region is also being developed rapidly. CRL and NRLM in Japan, NML in Australia, CSAO in China, and TL in Taiwan have been doing TWSTFT time transfer on a regular basis. Some other institutes, such as KRlSS in South Korea and PSB in Singapore, are also planning to join this network within 1 year. By performing TWSTFT time transfer it became obvious that several problems in TWSTFT should be solved for practical use and contribution to TAl with the full performance of TWSTFT. We have been developing a new time transfer modem to solve or reduce most of these problems with TWSTFT. It has three PRN code modulator units for transmission and eight PRN code demodulator and time-interval measurement units for receiving. It realizes simultaneous time transfer among up to eight stations.
Published in:	Proceedings of the 32th Annual Precise Time and Time Interval Systems and Applications Meeting November 28 - 30, 2000 Hyatt Regency Reston Town Center Reston, Virginia
Pages:	221 - 228
Cite this article:	Imae, M., Hosokawa, M., Hanado, Y., Li, Z., Fisk, P., Nakadan, Y., Liao, C.S., "TWSTFT Network Status in the Pacific Rim Region and Development of a New Time Transfer Modem for TWSTFT," Proceedings of the 32th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, November 2000, pp. 221-228.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In