Windshear detection and avoidance - Airborne systems perspectiveThe generalized windshear hazard index presently defined is derived from aircraft-position wind data and remotely sensed data obtained along the extended flight path by such candidate sensor technologies as microwave Doppler radar, Doppler lidar, and IR radiometry. Attention is given here to the results of a comparative evaluation of CO2 and Ho:YAG lidar sensor-employing windshear-detection systems, over a range 1-3 km ahead of the aircraft (corresponding to 15-45 sec of warning time). While the technology for a 10.6-micron CO2 lidar system is available, an optimum 2-micron REE laser crystal-based system remains to be developed.
Document ID
19890026135
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bowles, Roland L. (NASA Langley Research Center Hampton, VA, United States)
Targ, Russell (Lockheed Missiles and Space Co., Inc. Research and Development Div., Palo Alto, CA, United States)