Multi function multi mode digital avionics mmda
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Multi-Function Multi-mode Digital Avionics (MMDA). NASA Glenn Research Center – End of FY05 Status Presented to ICAO ACP WGC-11 GRC/James Budinger September 20, 2006. Multi-Function Multi-mode Digital Avionics (MMDA). Objective

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Multi-Function Multi-mode Digital Avionics (MMDA)

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Multi function multi mode digital avionics mmda

Multi-Function Multi-mode Digital Avionics (MMDA)

NASA Glenn Research Center – End of FY05 Status

Presented to ICAO ACP WGC-11

GRC/James Budinger

September 20, 2006


Multi function multi mode digital avionics mmda1

Multi-Function Multi-mode Digital Avionics (MMDA)

  • Objective

    • Develop and demonstrate in a relevant environment a Multi-function, Multi-mode Digital Avionics (MMDA) prototype that illustrates lower total system cost and faster certification and re-certification process

      • Multi-mode: The integration of similar modes of operation of a single avionics C,N, or S function

      • Multi-function: The integration of multiple CNS functions


Mmda rationale

MMDA Rationale

  • Rationale for a new approach:

    • Existing certification methodologies are expensive and based on proprietary methodologies

      • A new, cost-effective methodology to certify avionics is needed for both initial and subsequent for added waveforms (reduced maintenance cost)

    • Software defined avionics are a technology enabler for migration of mobile network centric operations into the NAS

      • MMDA can serve as an agent of change enabling transitional architectures, network enabled operations, and NGATS concepts


Mmda approach

MMDA Approach

  • NASA/FAA/Industry joint venture:

    • Work with avionics industry partners and standards bodies/working groups and certification authorities

    • Develop an open hardware and software MMDA architecture for civil aviation applications

    • Design and develop an MMDA prototype for a selected suite of CNS functions and/or modes in a relevant environment

    • Validate and demonstrate compliance with redundancy, certification, security and safety standards and requirements


Pathfinder mmda prototype

Pathfinder MMDA Prototype

Classes aircraft, reduce equipage, functions and modes, etc …

Concept of Use

Development

State of art, commercial tech., fault mitigation and graceful degradation, etc …

Barriers to market entry, 2012-2020 context

Prototype

Development

Requirements

Development

Open Architecture

Development

Business Case

Development

Certification

Methodology

Leverage open source and JTRS architectures,

Flexible and open based architecture, etc …

Aware of standards and working groups,

path towards modular certification,

reduce cert. and re-cert. costs, etc ...

Work with FAA on methodology developed,

validate design and methodology, etc …


Open architecture challenges

Open Architecture Challenges

  • A flexible, open and extendable architecture must:

    • Lower total system cost and reduce time for certification and re-certification

    • Address the number of waveforms (both new and legacy) that are beginning to overwhelm ability to fit aircraft with new capabilities

    • Leverage best commercial standards and innovations in implementation as they emerge over time

    • Provide flexibility for users to decide which capabilities they need and when


Mmda notional architecture

MMDA Notional Architecture

Control/

Management

DSP

Processing

RF Front

End

A/D

D/C

Switch

Fabric

Legacy Interface

Advanced

Information

Switch

Avionics

Systems


Mmda accomplishments project terminated at end of fy05

MMDA Accomplishments(Project terminated at end of FY05)

  • Contracted preliminary assessment and analysis

    • See multiple contractor technical reports under the “Resources” tab at the ACAST Website: http://acast.grc.nasa.gov

  • Established government and industry contacts

    • AEEC, FAA, DOD JTRS program office, RTCA SC-200 working groups and standards bodies, and Boeing, Honeywell, and Rockwell Collins

  • Initiated and chaired the Avionics Special Interest Group under SDR (Software Defined Radio) Forum

    • See avionics SIG vision, goals and glossary documents under “Document Library” tab at http://www.sdrforum.org/


Mmda plan forward

MMDA Plan Forward

  • Seek new government sponsor and select industry partner(s)

  • Coordinate with FAA and Eurocontrol on Flexible Onboard Architecture efforts

  • Invite comments and suggestions to proceed


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