发明授权
US5754139A Method and intelligent digital beam forming system responsive to traffic
demand
失效
响应交通需求的方法和智能数字波束成形系统
- 专利标题： Method and intelligent digital beam forming system responsive to traffic demand
- 专利标题（中）： 响应交通需求的方法和智能数字波束成形系统
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申请号： US739529申请日： 1996-10-30
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公开(公告)号： US5754139A公开(公告)日： 1998-05-19
- 发明人: Randy Lee Turcotte , Stephen Chih-Hung Ma , Sergio Aguirre
- 申请人： Randy Lee Turcotte , Stephen Chih-Hung Ma , Sergio Aguirre
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H01Q3/26
- IPC分类号： H01Q3/26 ; H04B7/15 ; H04B7/204 ; H01Q3/22
摘要：
An intelligent digital beam former (10) in conjunction with a satellite based array antenna (20) provides a plurality of dynamically controllable antenna beams (52) for communication with subscriber units (90) in response to demand for communication services. Geographic portions within the satellite's footprint that have a higher-demand for communication services are dynamically provided additional antenna beams while geographic portions having a lower demand for communication services are provided less antenna beams. When used on a non-geostationary satellite, the digital beam forming coefficients are dynamically adjusted to steer the antenna beams to maintain their ground location. The antenna beams are also shaped to help optimized geographic coverage.
公开/授权文献
- US4061302A Mount 公开/授权日：1977-12-06
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