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    • 4. 发明授权
    • Preventing interference due to misaligned ground terminals
    • 防止由于接地端子不对准引起的干扰
    • US06825807B1
    • 2004-11-30
    • US10374316
    • 2003-02-25
    • Douglas V. McKinnon
    • Douglas V. McKinnon
    • H01Q300
    • H01Q1/1257H04B7/18517H04B7/19
    • Embodiments of the present invention are directed to a method and an apparatus for preventing interference of geosynchronous satellites due to ground stations with misaligned antennas. In one embodiment, a two-way satellite ground terminal is configured to communicate with a geosynchronous target satellite which transmits a target satellite signal. The ground terminal comprises an antenna which is configured to receive the target satellite signal from the geosynchronous target satellite only if the antenna is oriented toward the geosynchronous target satellite. A transmitter is configured to transmit signals from the ground terminal via the antenna A signal detector is operatively coupled with the antenna and with the transmitter. The signal detector is configured to enable the transmitter to transmit signals from the ground terminal to the target satellite via the antenna only upon detecting the target satellite signal received by the antenna from the geosynchronous target satellite at a signal level above a preset threshold level.
    • 本发明的实施例涉及一种用于防止由于具有未对准天线的地面站引起的地球同步卫星的干扰的方法和装置。 在一个实施例中,双向卫星接地终端被配置为与发射目标卫星信号的地球同步目标卫星通信。 接地端子包括天线,其被配置为仅当天线朝向地球同步目标卫星时才从地球同步目标卫星接收目标卫星信号。 发射器被配置为经由天线从接地端子传输信号。信号检测器可操作地与天线和发射器耦合。 所述信号检测器被配置成使得所述发射机仅在所述天线从所述地球同步目标卫星在高于预设阈值水平的信号电平上检测到的目标卫星信号时,经由所述天线将信号从所述接地终端发射到所述目标卫星。