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ALERTING SYSTEM FOR A FACILITY

  • US 20100284249A1
  • Filed: 12/21/2007
  • Published: 11/11/2010
  • Est. Priority Date: 12/21/2007
  • Status: Active Grant
First Claim
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1. A method for providing a warning for a facility, comprising:

  • receiving an acoustic signal;

    classifying a source of the acoustic signal based upon a spectral analysis of a frequency-based domain signature of the acoustic signal;

    detecting a distance of the source of the acoustic signal from the facility and an altitude of the source of the acoustic signal relative to the facility based upon the acoustic signal; and

    generating the warning (i) when the source of the acoustic signal is classified as a rotary-wing aircraft and (ii) when the detected distance of the source of the acoustic signal from the facility and the detected altitude of the source of the acoustic signal relative to the facility falls within a defined geographical zone relative to the facility.

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