TWSTFT Network Status in the Pacific Rim Region and Development of a New Time Transfer Modem for TWSTFT
TWSTFT Network Status in the Pacific Rim Region and Development of a New Time Transfer Modem for TWSTFT
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DOI：
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发表时间：
2000
影响因子：
4.5
通讯作者：
M. Imae;M. Hosokawa;Y. Hanado;Z. Li;P. Fisk;Y. Nakadan;C. Liao
中科院分区：
文献类型：
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作者：
M. Imae;M. Hosokawa;Y. Hanado;Z. Li;P. Fisk;Y. Nakadan;C. Liao
摘要：卫星双向时间频率传递技术是最精确和最精确的时间传递技术之一。最近，欧洲和北美时间和频率研究所的TWSTFT结果已开始应用于TAI计算。环太平洋地区的TWSTFT网络也正在迅速发展。日本的CRL和NRLM，澳大利亚的NML，中国的曹操，台湾的TL一直在定期进行TWSTFT时间传递。其他一些机构，如韩国的KRlSS和新加坡的PSB，也计划在1年内加入这个网络。通过对TWSTFT进行时间传递，可以清楚地看出TWSTFT中的一些问题需要解决，以便在充分发挥TWSTFT的性能的同时，为TAI的实际使用和贡献做出贡献。我们一直在开发一种新的时间传输调制解调器，以解决或减少TWSTFT的大部分问题。它有3个用于发送的PRN码调制器单元和8个用于接收的PRN码解调器和时间间隔测量单元。它实现了最多8个站之间的同时时间传递。
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 TAI 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 TAI 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.