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Passive “Radar-PAPI” Landing Aids for precision straight-in Approach and Landing in low visibility

Korn, Bernd and Lorenz, Bernd and Doehler, Hans-Ullrich and Toebben, Helmut and Hecker, Peter (2005) Passive “Radar-PAPI” Landing Aids for precision straight-in Approach and Landing in low visibility. International Journal of Applied Aviation Studies, 4 (2), pp. 13-38. Publication of the FAA Acadamy. ISSN 1546-3214.

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Feasibility of a “Radar-PAPI” concept is examined that may act in low visibility like the visual PAPI landing aids in good visibility. This concept is built on three technological elements. First, the aircraft must be equipped with a forward-looking millimeter wave radar. Second, runway-marking retro-reflectors must be placed along the runway. Finally, another set of reflectors is needed to generate information on glide slope deviations. In a first field study, flight trials were completed to sample radar images. A subsequent low-fidelity part-task simulation was performed to answer the question as to how efficiently this kind of radar images can be utilized by pilots. Finally, an empirical study examined different options as to how to implement the Radar-PAPI concept in the cockpit. Results suggest that pilots learn the extraction of the visual cues from radar images surprisingly fast with the help of cue augmentation provided by retro-reflectors. Transformation of the usual plane-view display of the radar image to a three-dimensional perspective representation was associated with best pilot performance. In conclusion, ‘Radar-PAPI ‘ passive landing aids may be a feasible option implying a low level of automation to support low-visibility straight-in landings particularly for military operation.

Document Type:Article
Title:Passive “Radar-PAPI” Landing Aids for precision straight-in Approach and Landing in low visibility
AuthorsInstitution or Email of Authors
Doehler, Hans-UllrichUNSPECIFIED
Toebben, HelmutUNSPECIFIED
Date:January 2005
Journal or Publication Title:International Journal of Applied Aviation Studies
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 13-38
Publisher:Publication of the FAA Acadamy
Keywords:EVS, Low Visibility, Human Factors Study, MMW Radar, Enhanced Vision, Landing System
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L SF - Safe and Efficient Air Traffic Guidance (old)
DLR - Research area:Aeronautics
DLR - Program:L SF - Safe and Efficient Air Traffic Guidance
DLR - Research theme (Project):L - Human Factors and Safety in Aeronautics
Location: Braunschweig
Institutes and Institutions:Institute of Flight Control
Deposited By: Dr.-Ing. Bernd Korn
Deposited On:10 Feb 2006
Last Modified:27 Apr 2009 04:54

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