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Attitude control system for antenna on mobile body

  • US 4,725,843 A
  • Filed: 03/28/1986
  • Issued: 02/16/1988
  • Est. Priority Date: 03/29/1985
  • Status: Expired due to Fees
First Claim
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1. Attitude control system for antenna on mobile body for maintaining it in opposing relationship with a stationary object comprising:

  • a first drive mechanism for driving an antenna for rotation about a horizontal axis on the mobile body;

    first energizing means responsive to first attitude information for energizing the first drive mechanism to establish an angle of rotation of the antenna which is specified by the first attitude information;

    a second drive mechanism for driving the antenna for rotation about a vertical axis on the mobile body;

    second energizing means responsive to second attitude information for energizing the second drive mechanism to establish an angle of rotation of the antenna which is specified by the second attitude information;

    means for detecting the distance travelled by the mobile body;

    means for detecting an attitude of the mobile body;

    rate of change detecting means for detecting a rate of change of a steering member of the mobile; and

    attitude control means for supplying the first and the second attitude information to the first and the second energizing means, respectively, for correcting the first and second attitude information dependent on the distance travelled and the attitude for maintaining the attitude of the antenna in opposing relationship with the stationary object, and for updating the first and the second attitude information which is supplied to the energizing means;

    said attitude control means calculating in advance a correction value corresponding to the rate of change and updating the second attitude information for predictive correction of the attitude of the antenna.

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