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Compensation of static deformation and vibrations of antenna arrays

: Knott, P.; Loecker, C.; Algermissen, S.; Sekora, R.


Sivasundaram, S. ; American Institute of Aeronautics and Astronautics -AIAA-, Washington/D.C.:
9th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences, ICNPAA 2012 : Vienna, Austria, 10 - 14 July 2012
Melville, NY: AIP, 2012 (AIP Conference Proceedings 1493)
ISBN: 978-0-7354-1105-0
International Conference on Mathematical Problems in Engineering, Aerospace and Sciences (ICNPAA) <9, 2012, Vienna>
Fraunhofer FHR ()

The effect of vibrations and static deformations on aerospace platforms and their influence on the performance of radar, navigation or communication systems are currently studied in the scope of the NATO Research Task Groups SET-131. The deformations may be caused by different effects, e.g. aerodynamic loads, vehicle motion, moving parts such as rudders or turbines, or the impact of a collision. Depending on their strength and the function of the wireless system, they may have a significant impact on the system performance. Structural aspects of the platform such as mechanical or thermal stability, aerodynamics or outer appearance are of great importance. The present paper gives an overview of the scope of work of the group and on-going investigations on system performance analysis and compensation methods such as adaptive signal processing or electronic phase compensation for military key applications such as RADAR, Communication, Electronic Support Measures (ESM) or C ommand and Control (C2). In addition, the development of an antenna array demonstrator with active vibration compensation using piezo sensors and actuators and control algorithms will be shown, including simulated as well as experimental results.