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Boundary signal detection

  • US 9,903,947 B2
  • Filed: 08/10/2015
  • Issued: 02/27/2018
  • Est. Priority Date: 08/10/2015
  • Status: Active Grant
First Claim
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1. A boundary signal detection system to distinguish a valid boundary signal for a target region from an extraneous boundary signal for a neighboring region, the boundary signal detection system comprising:

  • a vehicle having a propulsion unit, the vehicle carrying a sensor to acquire a candidate boundary signal; and

    electronics to;

    convert the acquired candidate boundary signal from a time domain to a frequency domain to identify at least one embedded frequency in the candidate boundary signal;

    compare the at least one embedded frequency in the candidate boundary signal to at least one predetermined embedded frequency of the valid boundary signal; and

    identify the candidate boundary signal as the valid boundary signal based upon the comparison.

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