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Content Provider | IEEE Xplore Digital Library |
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Author | Haitao Wu Xiaohui Li Huijun Zhang Haijun Gao Yujing Bian |
Copyright Year | 2002 |
Description | Author affiliation: Nat. Time Service Center, Chinese Acad. of Sci., Xi'an, China (Haitao Wu; Xiaohui Li; Huijun Zhang; Haijun Gao; Yujing Bian) |
Abstract | Although GPS has been widely used, Loran-C is still highly desirable as an alternative PRS (primary timing reference source) for an important part of a nation's infrastructure. The current Loran-C signals lack of enough time information to flag the precision reference pulse, means that Loran-C has to be assisted by another time system in precision timing applications. In this paper, we present a new approach for the automatic independent TOC (Time of Coincidence) synchronization by Loran-C itself. Based on this method, Loran-C can be upgraded as an independent system in the aspect of precision timing. We also put forward a new message type - UTC message type, which is coincident with the latest ITU-R recommendation M589-3. The details of the message bit assignment and time code format are discussed. A precision transmission control of the UTC message is needed, so that the information and data in the message could be consistent with the reference pulse and denote the pulse. As an example, a control algorithm is given to determine and ensure the time order and position of UTC message frames. |
Sponsorship | IEEE Ultrasonics, Ferroelectrics, & Frequency Control Soc |
Starting Page | 530 |
Ending Page | 536 |
File Size | 485510 |
Page Count | 7 |
File Format | |
ISBN | 0780370821 |
DOI | 10.1109/FREQ.2002.1075940 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2002-05-31 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Broadcasting Timing Global Positioning System Pulse modulation Automatic control Relays Europe Control systems Propagation delay |
Content Type | Text |
Resource Type | Article |
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