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Title: Research on high-precision time synchronisation technology for sea mobile platforms

Authors: Dao Peng Dong; Hong Shuo Wu; Qing Feng Guo; Jin Wei Yang; Xi Li

Addresses: Cheng Du Spaceon Electronics Co., Ltd., Cheng Du 610036, China; Laboratory of Science and Technology on Marine Navigation and Control, China State Shipbuilding Corporation, 300131, China ' Tianjin Institute of Navigation Instruments, 300131, China ' Cheng Du Spaceon Electronics Co., Ltd., Cheng Du 610036, China ' Cheng Du Spaceon Electronics Co., Ltd., Cheng Du 610036, China ' Cheng Du Spaceon Electronics Co., Ltd., Cheng Du 610036, China

Abstract: Under static conditions, at present, mature technologies for long-distance and high-precision time synchronisation include satellite common view (CV) and two-way satellite time and frequency transfer (TWSTFT) and so on. However, under dynamic conditions, research on high-precision time synchronisation technology is relatively lacking such as mobile platforms on the sea. Considering the dynamic conditions of mobile platforms on the sea, a method of position's smooth filtering with velocity is proposed to improve the accuracy of position measurement, reducing the time measurement error introduced by position error. The proposed method ultimately improves the CV comparison accuracy between sea surface mobile platforms. The simulation and actual test results show that by using the method of position's smooth filtering with velocity, the CV comparison accuracy between mobile platforms on the sea can reach 10 ns.

Keywords: mobile platform; time and frequency synchronisation; spaceon electronics; common view; CV.

DOI: 10.1504/IJICT.2024.138561

International Journal of Information and Communication Technology, 2024 Vol.24 No.6, pp.57 - 70

Received: 17 Jan 2024
Accepted: 24 Feb 2024
Published online: 12 May 2024 *