Global Navigation Satellite Systems and e-Navigation
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Course Overview
Scope and objective
Provides AtoN and VTS managers, port and terminal administrations, related industry and other safety of navigation stakeholders with a solid understanding of GNSS, resilient PNT, digitalisation of maritime services and the e-navigation concept.
Participants will be able to explain GNSS development, other PNT sources, limitations and resilience of these systems and its impact on e-navigation to their organisations.
Format, date and location
4-day classroom course and a field technical visit. Maximum 24 participants. Wi-Fi and laptop access required.
Constanța, Romania
14 to 18 September 2026
Teaching Modules
1
Background
Inception, adoption, and development of the e-navigation concept.
2
Electronic Navigation Charts and ECDIS
Valid electronic chart data required to support e-navigation.
3
Global Navigation Satellite Systems
GNSS principles and potential vulnerabilities.
4
Position, Navigation and Timing
Why PNT is essential to safety of navigation and in line with e-navigation.
5
Information systems
Existing and developing systems improving shore-to-ship, ship-to-shore and ship-to-ship information flow.
Module 1 — Background
Covers the definition, principles, and development of the e-navigation concept.
e-Navigation Definition
IMO definition, scope, key components ashore and afloat, and the S-100 concept.
e-Navigation Architecture
Introduction to proposed architecture per R0140 and IALA shore-based infrastructure.
International Roles
Role of IALA, IMO, IHO in e-navigation development.
Module 2 — Electronic Navigational Charts and ECDIS
Electronic Navigational Charts
Definition and properties of ENCs. Worldwide hydrographic data status. Availability of ENCs and role of RENCs. Datum alignment challenges.
ECDIS and Portrayal
General ECDIS specifications. IMO SOLAS carriage requirements. Harmonisation of navigation systems onboard.
Module 3 — Global Navigation Satellite Systems
GNSS Status and Systems
Current GNSS status. Systems meeting IMO operational requirements. Ground-Based (GBAS) and Satellite-Based Augmentation Systems (SBAS).
GNSS Vulnerability
Natural and human sources of vulnerability. Mitigation measures including GNSS authentication.
Module 4 — Position, Navigation and Timing
Covers how continuous, resilient PNT can be maintained at sea — critical to e-navigation operations.
PNT-Dependent Systems
Systems reliant on PNT.
Augmentation and integrity aspects: SBAS, GBAS, RAIM, ARAIM.
Resilient PNT Integration
Combining data sources for resilient PNT. S200 Series (S240, S245, S246, S247).
Emerging technologies tracked via DTEC.
Discussion and Q&A
Session on GNSS and PNT.
Module 5 — Communications
MARCOM and Bandwidth management
Communications supporting e-navigation. Bandwidth availability. Advantages and disadvantages of different communication means.
GMDSS and VDES
Modernisation of GMDSS (SOLAS Ch. IV). VDES including AIS ASM channels. IMT for AtoN.
Automatic Identification System
AIS review, limitations, and role in e-navigation. Base stations, chaining, ASM messages, and Satellite AIS.
Module 6 — Information Systems
Information Architecture
Existing and developing systems: ship-to-ship, ship-to-shore, shore-to-ship. Maritime Services in e-navigation context. Digitalisation of waterways.
Data Modelling and S-100
Universal Marine Information Registry concept. S-100 Framework and IHO Geospatial Information Registry. Product specification development and AtoN information.
Test Beds and MCP
Existing and planned test beds. Maritime Connectivity Platform (MCP). Maritime Service Registry.