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SURFACE MAPPING SYSTEMS AND METHODS USING DYNAMIC THRESHOLDS

  • US 20160187474A1
  • Filed: 12/29/2015
  • Published: 06/30/2016
  • Est. Priority Date: 02/21/2014
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a sonar transducer assembly comprising a sonar transducer;

    a sonar receiver configured to receive acoustic returns from the sonar transducer and convert the acoustic returns into arrays of time differentiated sonar data samples; and

    a logic device adapted to communicate with the sonar receiver, wherein the logic device is configured to;

    receive the arrays of the time differentiated sonar data samples from the sonar receiver;

    determine at least one threshold based on noise characteristics of the sonar data samples;

    detect a portion of the sonar data samples having values that exceed the determined threshold; and

    determine a distance to a surface based on the detected portion of the sonar data samples.

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