Aircraft sound source direction determining system for airports

Details Aircraft sound source direction determining system for airports Aircraft sound source direction determining system for airports

G - Physics

01

S

G01S 3/802 (2006.01) G01S 3/803 (2006.01) G01S 3/805 (2006.01) G01S 5/20 (2006.01)

Patent

CA 2111295

Provided is a sound source determining system for locating aircraft in airports which can accurately and economically identify the position of aircraft in an airport of the like. The direction of a sound source is determined by arranging a plurality of acoustic sensors in an array at a prescribed interval for detecting an acoustic signal produced from the sound source, connecting a plurality of delay circuits having delay times which are different from one to a next by a unit time period to the outputs of the acoustic sensors, adding up the outputs of the delay circuits in an adder circuit and determining the direction of the sound source according to the unit time period which will maximize the output of the adder circuit.

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