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http://www.aerospacelab-journal.org/sites/www.aerospacelab-journal.org/files/AL04-11.pdf

Issue 4 - May 2012 -

New Challenges for Future Avionic Architectures

AL04-11

Mastering Complexity

New Challenges for Future

Avionic Architectures

P. Bieber, F. Boniol, M. Boyer,

E. Noulard, C. Pagetti

(Onera)

E-mail: frederic.boniol@onera.fr

Electronic sets operated on aircraft are usually summarized as “avionic architec-

tures” (for “aviation electronic architecture”). Since the 70s, avionic architectures,

composed of digital processing modules and communication buses, are supporting

more and more avionic applications such as flight control, flight management, etc.

Hence, avionic architectures have become a central component of an aircraft. They

have to ensure a large variety of important requirements: safety, robustness to equip-

ment failures, determinism, and real-time.

In response to these requirements, aircraft manufacturers have proposed several solu-

tions. This article has a twin objectives: firstly to survey the state of the art of existing

avionic architectures, including the IMA (for Integrated Modular Avionic) architecture of

the most recent aircraft; and secondly to discuss two challenges for the next genera-

tion of avionic architectures: reconfiguration capabilities, and integrating COTS proces-

sing equipment such as multi-core processors. We believe that these two challenges

will be central to the next generation of IMA architectures (called IMA-2G for IMA 2d

generation).

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