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    • 1. 发明授权
    • Sound source determining system
    • 声源确定系统
    • US5444443A
    • 1995-08-22
    • US169650
    • 1993-12-20
    • Misao UmedaKeiichi Ishikawa
    • Misao UmedaKeiichi Ishikawa
    • G01S3/809G01S3/805G01S5/20G01S7/526G01S15/06H03H21/00G08G1/01
    • G01S3/8055G01S5/20
    • Provided is a sound source determining system which can accurately and economically identify the position of aircraft in an airport or the like. The direction of a sound source is determined by arranging a plurality of acoustic sensors (S0, S1, S2, S3, . . . , S-1, S-2, S-3, . . . ) in an array at a prescribed interval for detecting an acoustic signal produced from the sound source, connecting a plurality of delay circuits (D0, D1, D2, D3, . . . , D-1, D-2, D-3, . . . ) having delay times which are different from one to a next by a unit time period (.tau.) to the outputs of the acoustic sensors, adding up the outputs of the delay circuits in an adder circuit (AD), and determining the direction of the sound source according to the unit time period (.tau.) which will maximize the output of the adder circuit.
    • 提供了一种声源确定系统,其能够准确且经济地识别机场等中的飞机的位置。 声源的方向通过以规定的方式排列多个声学传感器(S0,S1,S2,S3 ... ...,S-1,S-2,S-3,...) 间隔,用于检测从声源产生的声信号,连接具有延迟时间的多个延迟电路(D0,D1,D2,D3,...,D-1,D-2,D-3,...) 对于声学传感器的输出,单位时间段(τ)不同于下一个单位时间段(τ),将加法器电路(AD)中的延迟电路的输出相加,并根据 将使加法器电路的输出最大化的单位时间段(τ)。