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Alignment determination for antennas

  • US 10,396,426 B2
  • Filed: 08/15/2014
  • Issued: 08/27/2019
  • Est. Priority Date: 08/27/2013
  • Status: Active Grant
First Claim
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1. A system for determining orientation of a base station antenna, the system comprising:

  • a plurality of accelerometers rigidly mounted to the base station antenna, wherein at least one pair of accelerometers are arranged as antipodes so that first axes of each accelerometer in the at least one pair of accelerometers point in opposite directions, second axes of each accelerometer in the at least one pair of accelerometers point in opposite directions, and third axes of each accelerometer in the at least one pair of accelerometers point in the same direction, wherein the first, second, and third axes are perpendicular to each other;

    a plurality of magnetometers rigidly mounted to the base station antenna, wherein at least one pair of the magnetometers are arranged as antipodes so that fourth axes of each magnetometer in the at least one pair of magnetometers point in opposite directions, fifth axes of each magnetometer in the at least one pair of magnetometers point in opposite directions, and sixth axes of each magnetometer in the at least one pair of magnetometers point in the same direction, wherein the fourth, fifth, and sixth axes are perpendicular to each other; and

    a controller configured to (i) receive signals from the one or more accelerometers and the one or more magnetometers and (ii) determine tilt, roll, and yaw angles of the base station antenna, wherein the controller is configured to;

    (1) determine the tilt and roll angles of the base station antenna based on the signals from the one or more accelerometers; and

    (2) determine the yaw angle of the base station antenna based on (a) the determined tilt and roll angles and (b) the signals from the one or more magnetometers.

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