AlliedSignal commercial avionics windshear radar: theory and operational experience

Philip Hermann

doi:10.1117/12.241055

27 May 1996 AlliedSignal commercial avionics wind shear radar: theory and operational experience

Philip Hermann

Proceedings Volume 2737, Air Traffic Control Technologies II; (1996) https://doi.org/10.1117/12.241055
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

The AlliedSignal RDR-4B, a state-of-the-art digital airborne weather radar capable of forward-looking/predictive windshear detection, is presented. The weather phenomenon known as microbursts and windshears are overviewed. In reviewing the 'physics' of windshear, the need for a forward-looking sensor is established and the selection of digital radar as a means-to-the-end is justified. The RDR-4B system capabilities are then summarized, followed by a top-level breakdown of the radar and associated windshear detection processing. Key discussions include formation of Doppler frequency domain data, adaptive rejection of clutter spectra, and statistical characterization of retained weather/windshear spectra. An explanation of how these statistics come to indicate a windshear's existence and severity, in terms of hazard factors, follows. The paper concludes by documenting an actual windshear's detection prior-to-encounter and subsequent penetration by a RDR-4B equipped test aircraft.

Citation Download Citation

Philip Hermann "AlliedSignal commercial avionics wind shear radar: theory and operational experience", Proc. SPIE 2737, Air Traffic Control Technologies II, (27 May 1996); https://doi.org/10.1117/12.241055

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