Prediction of Optical Landing Guidance System Performance in Cat. III-a Minimum Weather

NOTE,Kocher,David G. ;TN-1973-47F19628-73-C-0002AF-649LESDTR-73-258*Landing aids, Lasers, Optical equipment, Landing, Visibility, Air traffic control terminal areas, Glide path systems, Feasibility studiesThe feasibility of using a laser optical system to provide precision guidance for the final two...

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Bibliographic Details
Main Author: Kocher,David G
Format: Report
Language:English
Subjects:
Air Navigation and Guidance
AIR TRAFFIC CONTROL TERMINAL AREAS
FEASIBILITY STUDIES
GLIDE PATH SYSTEMS
LANDING
LANDING AIDS
LASERS
OPTICAL EQUIPMENT
VISIBILITY
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Summary:NOTE,Kocher,David G. ;TN-1973-47F19628-73-C-0002AF-649LESDTR-73-258*Landing aids, Lasers, Optical equipment, Landing, Visibility, Air traffic control terminal areas, Glide path systems, Feasibility studiesThe feasibility of using a laser optical system to provide precision guidance for the final two miles of aircraft landing approaches in low visibility weather is examined. Since low visibility is caused most frequently by clouds and fog, approximate calculations of the optical signal, scattered light and noise are made as a function of range for various cloud and fog densities. It is concluded that with current laser technology, performance of an optical landing guidance system would be inadequate in the presence of Category III-a minimum visibility clouds and fogs. (Author)