发明授权
- 专利标题： Automatic frequency control of satellite transmitted spread spectrum signals
- 专利标题（中）： 卫星发射扩频信号的自动频率控制
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申请号： US416402申请日： 1989-10-03
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公开(公告)号： US5036523A公开(公告)日： 1991-07-30
- 发明人: Robert D. Briskman
- 申请人： Robert D. Briskman
- 申请人地址： DC Washington
- 专利权人： Geostar Corporation
- 当前专利权人： Geostar Corporation
- 当前专利权人地址： DC Washington
- 主分类号： H04B1/76
- IPC分类号： H04B1/76 ; H04B7/216
摘要：
Automatic frequency control is provided in a satellite-based spread spectrum radio communication system by employing a pilot signal as a frequency reference. A transmitter inserts the pilot signal at a null point in the power versus frequency spectrum of the transmitted spread spectrum signal in order to minimize bandwidth requirements and to avoid interference between the pilot signal and the transmitted data.
公开/授权文献
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