SESAR position on ATM Communication Technologies and future trends

Kors VAN DEN BOOGAARD, SESAR CIT

Hanspeter KULHEN, SESAR Task 2.5 R - EADS Astrium

Cedric D`SILVA, SESAR Task 2.5.2 O - Thales Avionics

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Background

• Today’s ATM system is built on technology • sometimes there are overlapping capabilities, and unnecessary fragmentation

• It relies on highly skilled human-centered control to achieve safe separation.

• Technological advances in conjuntion with a futre ATM concept are needed to support air transport growth • Technology will support a future CNS-ATM infrastructure - the Enablers of future of

ATM services need to be considered

• Choices must be coordinated and rationalised

• Transition steps to be recognised ; period during which coexistence of new and legacy componentsmay not yet giving full potential benefits.

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C - N - S technologies in the ATM context : their purpose

• NAV : materialise an maintain position from point-A to point-B

• SUR : control/verify that a/c is where it should be

• COMM : corrective action, tactical (also strategic & updated flight information)

A B

A B

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SESAR task 2.5.2 approach

• SESAR TASK 2.5 establishes its material in two steps• Initially, for D1, identify the current technological status, including the ongoing and

future trends

• During D3, participate in the definition and selection process of the future “2020“ CNS-ATM system, where concept (2.2) and system architecture (2.4) needs will be analysed against technological capabilities for the future (2.5).

current situationcurrent situation

2005 2010 2015 2020 2025

on-going trendson-going trends

future plansfuture plans

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Summary regarding the CURRENT SITUATION

• Gnd-Gnd (fixed comm.)• Intra-ANSP links (local choice ; low or no international standardisation)• Cross-Border links : ICAO standards (AFTN, CIDIN)• COTS products compatible with service providers/operators market technologies (i.e.

IP over cable or Fibre, VSAT also for remote fixed voice and data communication).

• Air-Gnd (mobile comm.)• Voice : VHF 25 kHz and 8.33 kHz • Data comm. : VDL2/ATN initial data communication standard• Oceanic / remote : HF is the authorised aviation link ; SATCOM used for voice and

data.

• Radio spectrum is scarce resource • efficiently coordination and management needed today• Coordinate planning to prepare future

• To support limited growth, short-lived gap-filler solutions exist today, BUT THE NEXT GENERATION ATM MUST BE PREPARED NOW

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On-going TRENDS, as established at D1

• Migration from analogue to digital (mobile and fixed communication)• Ground fixed comm. : IP and VOIP

• Mobile comm :

• Continental ATC data ( e.g. L2000+)

• Oceanic/Remote (SATdata, HFDL)

• SatCom voice for primary use is also under study in oceanic and remote areas. / HF voice remains as backup

• Different Communications needs• performance is dependant on application type

• ATC, ATC, and APC are not seeking the same performance areas

•

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Longer-term FUTURE TRENDS, as established at D1

• Communication : • is a key part of a robust C-N-S / ATM system : comm. reactivity (performance of

the control loop, resilience to failure) is an essential partof a future ATM system, in a modernised concept where higher capacity is sought.

• it is also needed for ATM co-operative concepts and for Information management.

• Today : intrinsic "work or fail" nature of all technologies lead to constraining procedural reversions• Degraded and failure modes in the future should not extensively lower the ATM

system capability

• Future systems must be robust

• Long-term : • Data becomes the primary means of communication and supports automation

• Information integration from all actors within the ATM network.

• Voice services are mainly retained for backup

• Security becomes highly relevant for voice and data communications.

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THANK YOU FOR YOUR ATTENTION