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Proceedings Paper

Novel approaches to helicopter obstacle warning
Author(s): Christian Seidel; Christian Samuelis; Matthias Wegner; Thomas Münsterer; Thomas Rumpf; Ingo Schwartz
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Paper Abstract

EADS Germany is the world market leader in commercial Helicopter Laser Radar (HELLAS) Obstacle Warning Systems. The HELLAS-Warning System has been introduced into the market in 2000, is in service at German Border Control (Bundespolizei) and Royal Thai Airforce and is successfully evaluated by the Foreign Comparative Test Program (FCT) of the USSOCOM. Currently the successor system HELLAS-Awareness is in development. It will have extended sensor performance, enhanced realtime data processing capabilities and advanced HMI features. We will give an outline of the new sensor unit concerning detection technology and helicopter integration aspects. The system provides a widespread field of view with additional dynamic line of sight steering and a large detection range in combination with a high frame rate of 3Hz. The workflow of the data processing will be presented with focus on novel filter techniques and obstacle classification methods. As commonly known the former are indispensable due to unavoidable statistical measuring errors and solarisation. The amount of information in the filtered raw data is further reduced by ground segmentation. The remaining raised objects are extracted and classified in several stages into different obstacle classes. We will show the prioritization function which orders the obstacles concerning to their threat potential to the helicopter taking into account the actual flight dynamics. The priority of an object determines the display and provision of warnings to the pilot. Possible HMI representation includes video or FLIR overlay on multifunction displays, audio warnings and visualization of information on helmet mounted displays and digital maps. Different concepts will be presented.

Paper Details

Date Published: 19 May 2006
PDF: 11 pages
Proc. SPIE 6214, Laser Radar Technology and Applications XI, 621406 (19 May 2006); doi: 10.1117/12.664042
Show Author Affiliations
Christian Seidel, EADS Deutschland GmbH (Germany)
Christian Samuelis, EADS Deutschland GmbH (Germany)
Matthias Wegner, EADS Deutschland GmbH (Germany)
Thomas Münsterer, EADS Deutschland GmbH (Germany)
Thomas Rumpf, EADS Deutschland GmbH (Germany)
Ingo Schwartz, EADS Deutschland GmbH (Germany)

Published in SPIE Proceedings Vol. 6214:
Laser Radar Technology and Applications XI
Gary W. Kamerman; Monte D. Turner, Editor(s)

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