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    Estimation of carrier frequency offset
    3.
    发明公开
    Estimation of carrier frequency offset 有权
    SchätzungvonTrägerfrequenzverschiebung

    公开(公告)号：EP0993159A2

    公开(公告)日：2000-04-12

    申请号：EP99119399.6

    申请日：1999-09-30

    申请人： Floware System Solutions Ltd.

    发明人： Genossar, Michael Joshua ,  Gotman, Max ,  Mizrahi, Natan ,  Chayat, Naftali

    IPC分类号： H04L27/22

    CPC分类号： H04L27/22

    摘要： A modem for more efficiently processing a received analog signal into a digital output. The modem preferably estimates the carrier frequency offset in at least one stage, by receiving a synchronization field divided into at least two portions, calculating a difference of the phase between the portions, and then calculating the frequency offset from the phase difference. More preferably, the modem estimates the carrier frequency offset in two stages, with a first stage being a initial frequency estimate of the offset

    摘要翻译： 用于将接收的模拟信号更有效地处理成数字输出的调制解调器。 调制解调器优选地通过接收分成至少两个部分的同步字段来计算至少一个级中的载波频率偏移，计算该部分之间的相位差，然后计算相位差的频率偏移。 更优选地，调制解调器在两级中估计载波频率偏移，其中第一级是偏移量“IMAGE”的初始频率估计，

    Method and system for rapid synchronization of a point to multipoint communication system
    5.
    发明公开
    Method and system for rapid synchronization of a point to multipoint communication system 有权
    用于快速同步一个点对多点通信系统的方法和装置

    公开(公告)号：EP0996261A2

    公开(公告)日：2000-04-26

    申请号：EP99119033.1

    申请日：1999-09-29

    申请人： Floware System Solutions Ltd.

    发明人： Genossar, Michael Joshua ,  Mizrahi, Natan ,  Gotman, Max ,  Chayat, Naftali

    IPC分类号： H04L25/03 ,  H04L27/227

    CPC分类号： H04L25/03038 ,  H04L27/2273 ,  H04L2025/03477 ,  H04L2025/03617 ,  H04L2025/03668 ,  H04L2027/0028 ,  H04L2027/0046 ,  H04L2027/0067 ,  H04L2027/0069

    摘要： A modem for more efficiently processing a received analog signal into a digital output. The modem preferably features an adaptive equalizer with coefficients which are saved and reused for processing of subsequent analog signals, in order to reduce the time required to reach convergence. In addition, preferably the modem features an automatic carrier frequency control which adjusts the sampled digital signal according to both the carrier phase offset and the carrier frequency offset. Again, in order to process the signal more quickly and efficiently, preferably the carrier frequency offset is stored and reused for processing subsequent signals.

    摘要翻译： 调制解调器用于更有效地处理所接收的模拟信号转换成数字输出。 调制解调器优选设有与被保存，并且对模拟信号之后的处理重复使用，以便减少达到收敛所需要的时间系数的自适应均衡器。 此外，优选地，调制解调器具有自动载波频率控制哪个bestimmt取样数字信号gemäß到两个载波相位偏移和所述载波频率偏移。 同样，为了更快速和有效地处理该信号，优选的载波频率偏移来存储和处理后续的信号再使用。