发明名称 |
Satellite communications system with frequency channelized beams |
摘要 |
A digital communications satellite (12,44) receives signals from a plurality of narrow input spot-beams (14) of an uplink. It regenerates, multiplexes and routes the signals for transmission in a plurality of narrow output spot-beams (42) of a downlink. The uplink beams (14) each include a plurality of frequency re-use channels (18), while the downlink beams (42) each have only a single wide-band channel. The satellite (12,44) may multiplex the signals either before or after routing them. The spot-beams (14,42) may be fixed or scanning.
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申请公布号 |
US4425639(A) |
申请公布日期 |
1984.01.10 |
申请号 |
US19810224006 |
申请日期 |
1981.01.12 |
申请人 |
BELL TELEPHONE LABORATORIES, INCORPORATED |
发明人 |
ACAMPORA, ANTHONY;REUDINK, DOUGLAS O.;YEH, YU S. |
分类号 |
H04J3/00;H04B7/185;H04B7/204;H04B7/208;(IPC1-7):H04J4/00;H04B7/18 |
主分类号 |
H04J3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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