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SINGLE-ANTENNA DIRECTION FINDING SYSTEM FOR MULTI-ROTOR PLATFORMS

  • US 20140218239A1
  • Filed: 02/05/2013
  • Published: 08/07/2014
  • Est. Priority Date: 02/05/2013
  • Status: Active Grant
First Claim
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1. A single-antenna direction finding system for multi-rotor platforms, comprising:

  • a UAV having multiple rotors, the multiple rotors changing attitude, speed, and direction of the UAV;

    a direction finding antenna fixed to the UAV;

    control circuitry operably connected to the multiple rotors, the control circuitry maintaining a desired pitch roll and yaw of the UAV;

    a direction finding (DF) processor onboard the UAV, the DF processor being operably connected to the control circuitry, the DF processor including;

    a DF receiver connected to the DF antenna;

    means for controlling the UAV to determine an azimuth of maximum signal strength of a signal received by the DF receiver;

    means for controlling the UAV to determine an elevation of maximum signal strength of a signal received by the DF receiver; and

    means for controlling propulsion of the UAV along the azimuth and elevation of maximum signal strength towards the signal received by the DF receiver.

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