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GMDSS Symposium
CLS, making use of existing and future satellite-ba sed systems towards modernization of GMDSS and optimiza tion of
SAR operations
19/11/2013
Gaetan FabritiusCLS, Head of Maritime Surveillance Team
www.lrit.fr / www.sat-ais.fr
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Presentation Overview
� Introducing CLS
� Satellite-based systems on the VHF band (SAT-AIS, VDES)
� LRIT
� Cospas Sarsat (MEOSAR upgrade)
� Data Fusion towards a modernization of GMDSS and optimization of SAR operations
� Discussion
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Created: 21 April 1986 – subsidiary of the French Space Agency (CNES)⇒ Operating the Argos constellation (Advanced Doppler location)
Core activities: • Commercial operation of satellite systems for positioning, data collection, ocean observation and surveillance
• Developing added-value applications and services based on satellite remote-sensing data;
Applications to:• environmental surveillance• sustainable management of marine resources• maritime surveillance• oil and gas
Supported by: Cubic-I (i3) – CLS office in Japan
Introducing CLS (1/2)
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Introducing CLS (2/2)
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CLS day to day mission
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� 1/ AIS, including Satellite monitoring of AIS and additional AIS channels for identification but not alerting;� 2/ HF e-mail and data systems;� 3/ VHF data systems;� 4/ Application Specific Messages over AIS or VHF data systems;� 5/ NAVDAT;� 6/ Modern satellite communication technologies;� 7/ Additional GMDSS satellite service providers;� 8/ Hand-held satellite telephones in survival craft;� 9/ Hand-held VHF with DSC and GNSS for survival craft;� 10/ Man Overboard Devices;� 11/ Cospas-Sarsat MEOSAR system; and� 12/ AIS and GNSS-equipped EPIRBs.� 13/ LRIT !
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Possible improvements of GMDSS (IMO – COMSAR 17/4)
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From AIS to SAT-AIS
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Principle and Technical Challenges
Protocole: SOTMDA (Self-Organized Time Division Mul tiple Access):• Future transmission slots reserved; • Self-organized cells ~ 40 NM in radius; • Transmissions as frequent as every 2 s; • 2 channels, each with 2250 slots per minute; • 27 message types (static and dynamic information); • > 70,000 Class-A ships; ⇒ NOT designed for reception from space.
SAT-AIS:• Field of view is large (~ 5000 km diameter, horizon-to-horizon); • Observation time up to ~ 12 min; • Many asynchronous SOTDMA cells in field of view simultaneously; • Transmissions from different cells overlap; • Receiver strategies required to deal with message collisions.⇒ Need for specific (CLS patented) spectrum processin g algorithms to
deal with message collisions: retrieve more message s & focus on a given ship/fleet of interest when processing the si gnal.
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CLS SAT-AIS service around Japan
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EU SAT- AIS Data Processing Center (DPC)
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CLS SAT-AIS Data Processing Center
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Background on VDES (1/2)
� Increasing need for communication and sharing of information in the maritime domain (shore to ship, ship to shore, ship to ship)� IMO, IALA and ITU are the leading bodies to regulate (express needs,
ask for new frequencies, define what to do with them, specify technical requirements, propose regulation updates)� The World Radio Conference (WRC-12) has made substantial
provisions for the maritime community in the VHF band:- Exclusive utilisation of current AIS1 and AIS2 by the maritime
mobile service in Region 2 and 3 (in 2025) - Allocation for the mobile satellite service for channels 75 and 76
for long range AIS (new message 27)- Identification of the channels 27, 28, 97, 88 for testing future AIS
applications, e.g. Application Specific Messages (ASM)- Identification worldwide of channels 24, 84, 25, 85, 26, 86 for
utilisation of digital systems
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Background on VDES (2/2)
� Expanding use of AIS has caused significant increase in VHF Data Link (VDL) loading which has become an active concern at IMO and ITU and for maritime administrations in general:
- AIS is well recognized, important tool, effective and useful technology, SOLAS vessels (Class-A)
- Too much !: AIS SART, AIS MOB, EPIRB AIS, AtoN, non SOLAS vessels (Class-B), ASM...
- While AIS is a navigation system, not fitted for data exchange
� Agenda Item 1.16 for WRC-15: “consider regulatory provisions and spectrum allocations to enable possible new AIS technology applications and possible new applications to improve maritime radiocommunication”
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Current VDES frequency allocation (draft)
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Possible Roadmap for VDES (draft)
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CLS and VDES
� CLS already deeply involved in VDES definition and design at IALA, ITU and IMO. � Currently under contract with the European Space Agency (ESA) to
complete a preliminary study: service requirements and mission, system, architecture requirements � Key stakeholders (maritime administrations, space agencies, regulatory
bodies and industry) already involved.� Test bed and demo with terrestrial and satellite prototypes scheduled for
2015/2016. � CLS is inviting administrations to join the on-goin g study to express
their needs, constraints and expectations.
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CLS LRIT Capacity Building
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LRIT for SAR missions
� Example with LRIT:
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LRIT e-NAV test bed (1/2)
� Context: � LRIT: IMO SOLAS regulation. � Sharing of ship positions between all SOLAS Contracting Governements� e-Navigation requires sharing of information� COMSAR-17 report: “explore possible use of the existing LRIT shore-
based infrastructure to facilitate exchange of certain e-navigation information in the future”� CLS: major LRIT provider worldwide (JCG, USCG, EMSA, Chile etc.)
� Objectives of the test bed: � Demonstrate, through a given use case (SAR) interest and feasibility to
exchange useful data via existing LRIT infrastructure� Provide at next IMO NCSR-1 recommendations on the best way forward
(technical changes required, main challenges, cost benefit analysis, realistic planning)
see: kystverket.no/en/About-Kystverket/International-work/enavigation/News/e-navigation-workshop-held-in-Chile/
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LRIT e-NAV test bed (2/2)
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COSPAS-SARSAT (1/2)
� A new space segment: Medium Earth Orbit (MEO) satellites ~20 000 km altitude 3 GNSS constellations: Galileo/Glonass-K/GPS-III 72 SAR payloads (repeaters) (MEO)LUT receiving & processing capabilities System integration, testing and commissioning Experienced CLS staff for training and system maintenance Local and remote 24/7 support
� And a new ground segment: MELOUT Upgraded or new MCC
� Compliant with the existing system: Existing beacons Second generation beacons under preparation
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COSPAS-SARSAT (2/2)
� Now...: System under deployment and under qualification Partial system in place but still not operational Localization are not enough reliable/precise and availability is not guaranteed
� ... 2015 Demonstration & Evaluation phase (D&E) Technical & operational tests conducted to qualify the system Pre-IOC phase: optional phase (operational use of MEOSAR data as complementary data)
� 2016-2017: Initial Operational Capability (IOC) Data will be distributed to SPOC and between MCCs
� 2018...: Full Operational Capability (FOC) Full deployment of satellites / MEOLUTs MEOSAR system commissioned
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CLS & COSPAS-SARSAT
� Capacity Building: CLS, as a system integrator and beyond
� providing: Advanced customised MCC solution (MEO)LUT receiving & processing capabilities System integration, testing and commissioning Experienced CLS staff for training and system maintenance Local and remote 24/7 support
� and beyond: Integration of other relevant data sources into the platform (LRIT, AIS/SAT-AIS,
metocean data) + configuration of .xml interface for data requests Data fusion and algorithms (drift models, Information dissemination tool (to SPOCS and other MCCs) for additional data
⇒ Towards a fully user-oriented Search & Rescue Data Center, relying on other capabilities and data already available at Coast Gu ard level
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CLS within FMCC
CLS Team at FMCC
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COSPAS-SARSAT enhanced MEOSAR (R)MCC
Data Fusion for optimized SAR missions