发明公开
EP0642191A1 A digitally controlled beam former for a spacecraft
失效
数字表达式Einrichtung zur Antennenstrahlformungfürein Raumfahrzeug。
- 专利标题： A digitally controlled beam former for a spacecraft
- 专利标题（中）： 数字表达式Einrichtung zur Antennenstrahlformungfürein Raumfahrzeug。
-
申请号： EP94303163.3申请日： 1994-04-29
-
公开(公告)号： EP0642191A1公开(公告)日： 1995-03-08
- 发明人: Shawyer, Roger John
- 申请人： MATRA MARCONI SPACE UK LIMITED
- 申请人地址： The Grove Warren Lane Stanmore Middlesex HA7 4LY GB
- 专利权人： MATRA MARCONI SPACE UK LIMITED
- 当前专利权人： MATRA MARCONI SPACE UK LIMITED
- 当前专利权人地址： The Grove Warren Lane Stanmore Middlesex HA7 4LY GB
- 代理机构： Nicholson, Ronald
- 优先权： GB9318285 19930903
- 主分类号： H01Q3/26
- IPC分类号： H01Q3/26
摘要：
A digitally controlled beam former for a spacecraft which includes means for periodically calibrating the feed paths of the spacecraft's antenna array by measuring the apparent movement of the centre of a reference signal and a nominal signal and utilising the measured data to compensate for at least the phase drift in the antenna feed paths. The measured data may also be used to compensate for amplitude and phase drift in the antenna feed paths.
信息查询
