Ocean real-time precise point positioning based on BeiDou short-message communication

被引：0
|
作者：
Ji S. [1 ]
Sun J. [1 ]
Song Y. [2 ]
Wang Z. [1 ]
He K. [1 ]
Lu Y. [3 ]
机构：
[1] College of Oceanography and Space Informatics, China University of Petroleum (East China), Qingdao
[2] Qingdao Surveying and Mapping Institute, Qingdao
[3] National Time Service Center, Chinese Academy of Sciences, Xi'an
来源：
Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology | 2021年 / 43卷 / 06期
关键词：
BeiDou short-message; Low cost; Marine positioning; Multi-GNSS fusing; Real-time precise point positioning;
D O I：
10.11887/j.cn.202106010
中图分类号：
学科分类号：
摘要：
Aiming at a desirable solution to the high cost of precision navigation and positioning in the ocean, transmitting real-time service data from multi-global navigation satellite system through BeiDou short-messages device to realize real-time precise point positioning was proposed. Real-time service data was simplified to reduce the costs of communication and hardware, remedying the shortage of BeiDou short-message band width. In order to overcome the low communication frequency limitation of BeiDou short-message service, and to obtain satellite orbit position and clock correction at the time beyond minute interval, a method of forecasting real-time precise ephemeris was adopted. The data process of real-time precise point positioning in ocean based on BeiDou short-message was simulated. Post-processing ocean observation data and testing positioning performance, its accuracy can reach cm-level in horizontal direction and 10~20 cm in vertical direction. Results show that the method can provide effective technical reference for the low-cost real-time precise point positioning in the ocean. © 2021, NUDT Press. All right reserved.
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页码：74 / 84
页数：10
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