Windshear Avoidance: Requirements And Proposed System For Airborne Lidar Detection

Russell Targ; Roland L. Bowles

doi:10.1117/12.944248

12 April 1988 Windshear Avoidance: Requirements And Proposed System For Airborne Lidar Detection

Russell Targ, Roland L. Bowles

Proceedings Volume 0889, Airborne and Spaceborne Lasers for Terrestrial Geophysical Sensing; (1988) https://doi.org/10.1117/12.944248
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

A generalized windshear hazard index is defined, which 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 proposed airborne CO₂ and Ho:YAG lidar windshear detection systems analyzed in this paper 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-μm CO₂ lidar is at hand.

Citation Download Citation

Russell Targ and Roland L. Bowles "Windshear Avoidance: Requirements And Proposed System For Airborne Lidar Detection", Proc. SPIE 0889, Airborne and Spaceborne Lasers for Terrestrial Geophysical Sensing, (12 April 1988); https://doi.org/10.1117/12.944248

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