Windshear avoidance - Requirements and proposed system for airborne lidar detectionA generalized windshear hazard index is derived from considerations of wind conditions and an aircraft's present and potential altitude. Based on a systems approach to the windshear threat, lidar appears to be a viable methodology for windshear detection and avoidance, even in conditions of moderately heavy precipitation. The airborne CO2 and Ho:YAG lidar windshear detection systems analyzed can each give the pilot information about the line-of-sight component of windshear threat from his present position to a region extending 1 to 3 km in front of the aircraft. This constitutes a warning time of 15 to 45 s. The technology necessary to design, build and test such a brassboard 10.6-micron CO2 lidar is at hand.
Document ID
19890028505
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Targ, Russell (Lockheed Missiles and Space Co., Inc. Research and Development Div., Palo Alto, CA, United States)
Bowles, Roland L. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: Airborne and Spaceborne Lasers for Terrestrial Geophysical Sensing