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11 条记录 (耗时 0.017 秒)

    Short-Periodicity Carrier Acquisition for Satcom Interference Cancellation
    3.
    发明授权
    Short-Periodicity Carrier Acquisition for Satcom Interference Cancellation 有权

    公开(公告)号：EP2453591B1

    公开(公告)日：2018-05-23

    申请号：EP11188911.9

    申请日：2011-11-11

    申请人： Global Eagle Entertainment Inc.

    发明人： Jayasimha, Sriram ,  Paladugula, Jyothendar

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18513

    摘要： A technique for interference cancellation in a satellite communication system involves an autocorrelation on the hub signal to detect a periodicity in the hub signal, determining a search range for a delay in the hub echo signal in accordance with the periodicity, locating the delay in the hub echo signal, and performing the interference cancellation in accordance with the delay. In the case of periodicity, a delay is acquired (either true or false) that provides cancellation (provided that the period does not change). When the period changes, cancellation is discovered to be poor, and another delay (that may be true or false) is acquired that provides good cancellation and so on.

    Short-Periodicity Carrier Acquisition for Satcom Interference Cancellation
    4.
    发明公开
    Short-Periodicity Carrier Acquisition for Satcom Interference Cancellation 有权
    用于卫星通信干扰消除的短周期载波捕获

    公开(公告)号：EP2453591A3

    公开(公告)日：2017-08-09

    申请号：EP11188911.9

    申请日：2011-11-11

    申请人： Global Eagle Entertainment Inc.

    发明人： Jayasimha, Sriram ,  Paladugula, Jyothendar

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18513

    摘要： A technique for interference cancellation in a satellite communication system involves an autocorrelation on the hub signal to detect a periodicity in the hub signal, determining a search range for a delay in the hub echo signal in accordance with the periodicity, locating the delay in the hub echo signal, and performing the interference cancellation in accordance with the delay. In the case of periodicity, a delay is acquired (either true or false) that provides cancellation (provided that the period does not change). When the period changes, cancellation is discovered to be poor, and another delay (that may be true or false) is acquired that provides good cancellation and so on.

    摘要翻译： 卫星通信系统中用于干扰消除的技术包括：关于集线器信号的自相关以检测集线器信号中的周期性;根据周期性确定集线器回波信号中的延迟的搜索范围;在集线器中定位延迟 回声信号，并根据该延迟执行干扰消除。 在周期性的情况下，获取延迟（真或假），提供取消（前提是期限不变）。 当期限改变时，取消被发现是不好的，并且获得了提供良好取消等的另一延迟（可能是真或假）。

    MULTI-CHANNEL SPREAD SPECTRUM RETURN CHANNEL FOR ULTRA SMALL APERTURE TERMINAL (USATS)
    9.
    发明公开
    MULTI-CHANNEL SPREAD SPECTRUM RETURN CHANNEL FOR ULTRA SMALL APERTURE TERMINAL (USATS) 审中-公开
    用于超小孔径终端的多信道扩频频谱返回信道（USATS）

    公开(公告)号：EP3232583A1

    公开(公告)日：2017-10-18

    申请号：EP17165431.2

    申请日：2017-04-07

    申请人： Global Eagle Entertainment Inc.

    发明人： Jayasimha, Sriram ,  Paladugula, Jyothendar ,  Avellan, Abel ,  Fawzi, Federico

    IPC分类号： H04B7/185 ,  H04B7/12 ,  H04L27/26

    CPC分类号： H04B1/707 ,  H04B1/16 ,  H04B1/525 ,  H04B5/0031 ,  H04B5/0062 ,  H04B7/12 ,  H04B7/18513 ,  H04B7/212 ,  H04L1/04 ,  H04L27/2275 ,  H04L27/2601 ,  H04L27/3872 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/168 ,  Y02D70/446

    摘要： A return channel system for ultra-small aperture terminals has a spreader that receives an input signal and outputs a spread spectrum signal having multiple replicated signals with a lower power than the input signal. A de-spreader includes a de-multiplexer that receives the spread spectrum signal via satellite. The de-multiplexer separates the spread spectrum signal into a first channel having a first signal and a second channel having a second signal. The de-spreader also has an offset compensation circuit having a phase estimator configured to estimate a phase offset between a phase of the first signal and a phase of the second signal. And a phase adjustor that receives the second signal and adjusts the phase of the second signal to align with the phase of the first signal to provide a phase-adjusted second signal. A summer combines the first signal with the phase-adjusted second signal to provide a composite signal.

    摘要翻译： 用于超小孔径终端的返回信道系统具有扩频器，其接收输入信号并输出​​具有比输入信号低的功率的具有多个复制信号的扩频信号。 解扩器包括通过卫星接收扩频信号的解复用器。 解复用器将扩频信号分离成具有第一信号的第一信道和具有第二信号的第二信道。 解扩器还具有偏移补偿电路，其具有被配置为估计第一信号的相位与第二信号的相位之间的相位偏移的相位估计器。 以及相位调整器，其接收第二信号并调整第二信号的相位以与第一信号的相位对准以提供经相位调整的第二信号。 夏季将第一信号与经相位调整的第二信号组合以提供复合信号。