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http://dx.doi.org/10.5394/KINPR.2019.43.1.42

A Study on Backup PNT Service for Korean Maritime Using NDGNSS  

Han, Young-Hoon (Korea Research Institute of Ships and Ocean Engineering)
Lee, Sang-Heon (Korea Research Institute of Ships and Ocean Engineering)
Park, Sul-Gee (Korea Research Institute of Ships and Ocean Engineering)
Fang, Tae-Hyun (Korea Research Institute of Ships and Ocean Engineering)
Park, Sang-Hyun (Korea Research Institute of Ships and Ocean Engineering)
Publication Information
Journal of Navigation and Port Research / v.43, no.1, 2019 , pp. 42-48 More about this Journal
Abstract
The significance of PNT information in the fourth industrial revolution is viewed differently in relation to the past. Autonomous vehicles, autonomous vessels, smart grids, and national infrastructure require sustainable and reliable services in addition to their high precision service. Satellite navigation system, which is the most representative system for providing PNT information, receive signals from satellites outside the earth so signal reception power is low and signal structures for civilian use are open to the public. Therefore, it is vulnerable to intentional and unintentional interference or hacking. Satellite navigation systems, which can easily acquire high performance of PNT information at low cost, require alternatives due to its vulnerability to the hacking. This paper proposed R-Mode (Ranging Mode) technology that utilizes currently operated navigation and communication infrastructure in terms of Signals of OPportunity (SoOP). For this, the Nationwide Differential Global Navigation Satellite System (NDGNSS), which currently gives a service of Medium Frequency (MF) navigation signal broadcasting, was used to validate the feasibility of a backup infrastructure in domestic maritime areas through simulation analysis.
Keywords
GNSS Backup; R-Mode; NDGNSS; Maritime PNT Service; Resilient PNT; MF Beacon; eLoran;
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