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    Transmitter signal shaping
    2.
    发明授权
    Transmitter signal shaping 有权
    发射机信号整形

    公开(公告)号：US09246523B1

    公开(公告)日：2016-01-26

    申请号：US14687861

    申请日：2015-04-15

    申请人： MagnaCom Ltd.

    发明人： Daniel Stopler ,  Amir Eliaz

    IPC分类号： H04B1/04 ,  H04L1/00

    CPC分类号： H04L1/0042 ,  H03F1/3241 ,  H04B1/0458 ,  H04B2001/0425 ,  H04L25/03343

    摘要： A transmitter comprises at least one nonlinear circuit, and a power spectral density (PSD) shaping circuit. The PSD shaping circuit is operable to receive a symbol of a modulated signal, wherein the symbol corresponds to a first one or more frequency bins. The PSD shaping circuit is operable to perform iterative processing of the symbol, wherein each iteration of the processing comprises: generation of a pre-distortion signal based on a model of the at least one nonlinear circuit, wherein the nonlinearly distorted signal corresponds to a second one or more frequency bins; and combination of the symbol, or a pre-distorted version of the symbol, with the nonlinearly-distorted signal. The generation of the pre-distorted signal may comprise generation of a nonlinearly-distorted signal, and adjustment of one or more components of the nonlinearly-distorted signal.

    摘要翻译： 发射机包括至少一个非线性电路和功率谱密度（PSD）整形电路。 PSD整形电路可操作以接收调制信号的符号，其中符号对应于第一个或多个频率仓。 PSD整形电路可操作以执行符号的迭代处理，其中处理的每次迭代包括：基于至少一个非线性电路的模型产生预失真信号，其中非线性失真信号对应于第二 一个或多个频率仓; 以及符号或符号的预失真版本与非线性失真信号的组合。 预失真信号的产生可以包括非线性失真信号的产生，以及非线性失真信号的一个或多个分量的调整。

    Reception of inter-symbol-correlated signals using symbol-by-symbol soft-output demodulator
    4.
    发明授权
    Reception of inter-symbol-correlated signals using symbol-by-symbol soft-output demodulator 有权
    使用逐个符号的软输出解调器接收符号间相关信号

    公开(公告)号：US09118519B2

    公开(公告)日：2015-08-25

    申请号：US14522826

    申请日：2014-10-24

    申请人： MagnaCom Ltd.

    发明人： Amir Eliaz ,  Ilan Reuven

    IPC分类号： H04L25/03 ,  H04L1/00 ,  H04M11/06 ,  H04L25/06

    CPC分类号： H04L25/03286 ,  H04L1/005 ,  H04L1/0054 ,  H04L25/03006 ,  H04L25/03057 ,  H04L25/03305 ,  H04L25/03318 ,  H04L25/067 ,  H04L27/38 ,  H04M11/06 ,  H04M11/062

    摘要： A receiver comprises a sequence estimation circuit and a soft-input-soft-output (SISO) decoder. The sequence estimation circuit comprises circuitry operable to generate first soft bit decisions for symbols of a received inter-symbol-correlated signal. The SISO decoder comprises circuitry operable to decode the first soft bit decisions to generate corrected soft bit decisions. The circuitry of the sequence estimation circuit is operable to generate, based on the corrected soft bit decisions, second soft bit decisions for the symbols of the received inter-symbol-correlated signal, which are improved/refined relative to the first soft bit decisions.

    摘要翻译： 接收机包括序列估计电路和软输入软输出（SISO）解码器。 序列估计电路包括可操作以对接收到的符号间相关信号的符号产生第一软比特决定的电路。 SISO解码器包括可操作以解码第一软比特决定以产生校正软比特决定的电路。 序列估计电路的电路可操作以基于校正的软比特决定，生成针对接收的符号间相关信号的符号的第二软比特决定，其相对于第一软比特决定被改进/精化。