发明授权
- 专利标题: Method and apparatus for automatically aiming an antenna to a distant location
- 专利标题(中): 用于将天线自动瞄准远处的方法和装置
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申请号: US215185申请日: 1998-12-17
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公开(公告)号: US6016120A公开(公告)日: 2000-01-18
- 发明人: Lea Ann McNabb , David R. Gildea
- 申请人: Lea Ann McNabb , David R. Gildea
- 申请人地址: CA Sunnyvale
- 专利权人: Trimble Navigation Limited
- 当前专利权人: Trimble Navigation Limited
- 当前专利权人地址: CA Sunnyvale
- 主分类号: H01Q1/12
- IPC分类号: H01Q1/12 ; H01Q1/32 ; H01Q3/08 ; G01S5/02 ; H04B7/185
摘要:
An antenna aiming method and apparatus for automatically pointing an antenna to a selected distant location. The antenna aiming apparatus includes a database for storing data for distant locations, an electronic compass for determining a reference azimuth for the local antenna, and a global positioning system (GPS) receiver for determining a local location. A processor computes a pointing direction having an azimuth and an elevation from the local location to the distant location and then computes a horizontal rotation angle between the pointing direction and the reference azimuth and a vertical rotation angle from horizontal to the elevation. An antenna rotator servo-mechanism under processor control rotates the local antenna by the horizontal and vertical rotation angles for pointing the local antenna to the distant location. Optionally, the apparatus further includes electronic roll and pitch inclinometers for providing information to the processor for correcting the horizontal and vertical rotation angles for pitch and roll of the platform.
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