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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46208

Title: A study of ionospheric delay corrections for next-generation two-way satellite time and frequency transfer
Authors: Fang-dar Chu
Wen-Hung Tseng
Yi-Jiun Huang
Huang-Tien Lin
Chia-Shu Liao
Wei-Chih Hsu
Pei-Yih Ting
Contributors: 國立臺灣海洋大學:資訊工程學系
NTOU:Department of Computer Science and Engineering
Keywords: Delay;Ionosphere;Satellites;Time frequency analysis;Plasmas;Earth;Educational institutions
Date: 2012-05
Issue Date: 2018-05-07T08:29:13Z
Publisher: Frequency Control Symposium (FCS), 2012 IEEE International
Abstract: Abstract:
Time scale difference has been compared at nanosecond level so far by using two-way satellite time and frequency transfer (TWSTFT), benefiting from many signal delays are pretty canceled out due to the reciprocity of propagation path. For next-generation TWSTFT which compares time scale difference at sub-nanosecond level, further studies for signal delays are necessary. This work studies the impact of the ionospheric delay corrections on next-generation TWSTFT. The results demonstrate that the ionospheric corrections vary with both latitude and solar activity. At low latitudes and during moderate or high solar activity, they can reach 200 picoseconds, and thus can affect the time precision of sub-nanosecond next-generation TWSTFT.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46208
Appears in Collections:[資訊工程學系] 演講及研討會

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