Invention Grant
US08149176B2 Device and method for controlling a satellite tracking antenna 有权
用于控制卫星跟踪天线的装置和方法

  • Patent Title: Device and method for controlling a satellite tracking antenna
  • Patent Title (中): 用于控制卫星跟踪天线的装置和方法
  • Application No.: US12597650
    Application Date: 2008-04-24
  • Publication No.: US08149176B2
    Publication Date: 2012-04-03
  • Inventor: Daniel Hellberg
  • Applicant: Daniel Hellberg
  • Applicant Address: SE Linköping
  • Assignee: Saab AB
  • Current Assignee: Saab AB
  • Current Assignee Address: SE Linköping
  • Agency: Venable LLP
  • Agent Eric J. Franklin
  • Priority: EP07106911 20070425
  • International Application: PCT/EP2008/055021 WO 20080424
  • International Announcement: WO2008/132141 WO 20081106
  • Main IPC: H01Q3/00
  • IPC: H01Q3/00
Device and method for controlling a satellite tracking antenna
Abstract:
A device for controlling a satellite tracking antenna. An azimuth drive is configured to impart an azimuthal rotational motion to the antenna about an azimuth axis. An elevation axis drive is configured to impart a rotational motion to the antenna about an elevation axis orthogonal to the azimuth axis. A tilt axis drive is configured to impart a rotational motion to the antenna about a tilt axis. The tilt axis is connected to the elevation axis in such a way that the rotational freedom of motion of the antenna about the tilt axis is dependent on the elevation angle such that: at an elevation angle of 0° the rotational freedom of motion of the antenna about the tilt axis corresponds to the azimuthal rotational motion; at an increasing elevation angle the rotational freedom of motion about the antenna successively transcends into a roll rotation; and at an elevation angle of 90° the rotational freedom of motion of the antenna about the tilt axis corresponds to a roll rotation about a roll axis orthogonal to the azimuth axis and to the elevation axis. A control controls the operation of the azimuth axis drive, the elevation axis drive, and the tilt axis drive. The control includes a true north seeking gyro for tracking position, orientation, direction and speed of movement of the device. The control further includes an additional gyro comprising an elevation gyro axis arranged to sense the elevation movement and a tilt gyro axis arranged to sense the tilt movement, so as to minimize the angular velocity of the antenna pointing vector. A method for controlling a satellite tracking antenna, and a vessel including the device.
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