Acoustic airspace collision detection system

Details Acoustic airspace collision detection system Acoustic airspace collision detection system

2007-10-16

2009-10-20

Pihulic, Dan (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

By combining or comparing signals

C367S136000, C367S909000

Reexamination Certificate

active

07606115

ABSTRACT:
An acoustic collision detection system that enables an aircraft to detect an approaching target, recognize the potential for collision and change course to maintain a safe separation distance, with or without operator invention. The acoustic collision detection system consists of an array of acoustic probes and a digital signal processor which receives acoustic data from the approaching target. The digital signal processor is configured to receive acoustic data from the array of acoustic probes; filter out noise and its own acoustic signals; extract the acoustic signals emanating from the approaching target; calculate the intensity, the bearing and the bearing angle rate of change of the approaching target, and determine whether the aircraft and the approaching target are on a potential collision course.

REFERENCES:
patent: 2066156 (1936-12-01), Muffly
patent: 2382557 (1945-08-01), Frazier
patent: 2837738 (1958-06-01), Van Valkenburgh
patent: 6268804 (2001-07-01), Janky et al.

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