Abstract
For any aircraft an encounter with wind shear during take-off, initial climb, or landing approach is a hazardous flight situation. This paper describes the design of an airborne wind shear detection system which has been arranged to provide pilots with a vocal alert upon encountering wind shear, and also vocal annunciation of the intensity and direction of the horizontal component of wind shear. Its vertical velocity component is presented visually. The system is based upon Luenberger observer theory and the design involves the use of a microprocessor and a voice synthesis device. The results of the simulation of a landing approach in the presence of an acute wind shear are used to illustrate the effectiveness of the system.
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