发明名称 |
POINT-TO-POINT COMMUNICATIONS LINK WITH SPATIAL MULTIPLEXING |
摘要 |
A communications system having two terminals, each including two antennas, the communications system using spatial multiplexing. One antenna of a first terminal transmits a tracking tone along with a data signal. Two antennas in a second terminal receive the tracking tone. The signals from the two antennas are processed by a feed circuit. The feed circuit includes a variable delay circuit and a combiner that forms, at a first difference output, a linear combination, of a signal from the first antenna and a signal from the second antenna, in which the tracking tone is canceled. The variable delay circuit is actively adjusted to maintain this cancellation. |
申请公布号 |
WO2017048353(A1) |
申请公布日期 |
2017.03.23 |
申请号 |
WO2016US42342 |
申请日期 |
2016.07.14 |
申请人 |
RAYTHEON COMPANY |
发明人 |
BROWN, Kenneth, W.;SOTELO, Michael, J.;SANDERS, April, R. |
分类号 |
H04B7/08;H04B1/10;H04B7/06;H04B7/12 |
主分类号 |
H04B7/08 |
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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