Concepts of Active Noise Aircraft Cockpits Reduction Employed in High Noise Level

  • Hatem Foudhaili
  • Eduard Reithmeier
Conference paper
Part of the Springer Optimization and Its Applications book series (SOIA, volume 33)


During the past two decades, reducing exposure to high-level noise in aircraft cockpits by methods of active noise control (ANC) has aroused the interest of researchers. Also, some commercial applications were initiated by leading manufacturers. For this purpose, fundamentally different approaches were used. While active noise compensation reduces the noise level by generating an interfering antinoise, structural vibration control aims to limit sound emittance through active damping of the aircraft structure vibrations. These approaches are linked with very different financial and technical boundary conditions, which implied distinct degrees of success. The ANC approaches used in cockpit noise reduction will be summarised, and their success or failure reasons will be analysed. Thereafter, the focus will be set on the industrially more successful way of protecting pilots from high noise levels, which is the use of active headsets. The development and the current state of commercial products will be presented, and the requirements of future trends will be derived. These requirements consist in extending the band width of noise reduction and making the control adaptive to changing conditions. Finally, the development of a prototype of a new generation of ANC headsets is presented. The prototype combines standard feedback with adaptive feedforward control techniques and processes the control algorithms by an integrated DSP platform.


Noise Reduction Active Noise Noise Cancellation Interior Noise Active Noise Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag New York 2009

Authors and Affiliations

  1. 1.Institute of Measurement and Automatic ControlLeibniz UniversitaetHannoverGermany

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