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    Receive beam forming with shared phase estimation
    1.
    发明公开
    Receive beam forming with shared phase estimation 审中-公开
    Empfangsstrahlformung mit gemeinsamerPhasenschätzung

    公开(公告)号：EP1303060A1

    公开(公告)日：2003-04-16

    申请号：EP01124470.4

    申请日：2001-10-11

    申请人： Sony International (Europe) GmbH

    发明人： Nöthlings, Rolf, Sony International (Europe) GmbH ,  Wildhagen, Jens, Sony International (Europe) GmbH ,  Schill, Dietmar, Sony International (Europe) GmbH

    IPC分类号： H04B7/08

    CPC分类号： H04B7/084 ,  H04B7/086

    摘要： A beam forming unit for receivers comprising at least two antennas (1,2) is introduced. By evaluating the phases (25,26) of the received signals in each antenna signal path, it is possible to determine the phase offsets (ΔΦ) between the antenna signal paths. At least one of the antenna signal paths comprises phase shifting means for shifting the phases of the received signals according to said phase offsets (ΔΦ). The baseband signals (19, 20) obtained via the various antenna signal paths are now phase coherent and can be added in order to form a combined signal (28), which is forwarded to the demodulation unit (29). The phase estimation means for the various antenna signal paths are preferably realized as shared phase estimation means (21,22) which are operated in a multiplex mode.

    摘要翻译： 引入了包括至少两个天线（1,2）的接收机的波束形成单元。 通过评估每个天线信号路径中的接收信号的相位（25,26），可以确定天线信号路径之间的相位偏移（DELTA PHI）。 至少一个天线信号路径包括用于根据所述相位偏移（DELTA PHI）移位接收信号的相位的相移装置。 经由各种天线信号路径获得的基带信号（19,20）现在是相位相位的，并且可以相加，以形成被转发到解调单元（29）的组合信号（28）。 用于各种天线信号路径的相位估计装置优选地被实现为以多路复用模式操作的共享相位估计装置（21,22）。

    Interference reduction for simulcast signals
    3.
    发明公开
    Interference reduction for simulcast signals 审中-公开
    InterferenzverminderungfürSimulcastsignalen

    公开(公告)号：EP1370017A1

    公开(公告)日：2003-12-10

    申请号：EP02012734.6

    申请日：2002-06-07

    申请人： Sony International (Europe) GmbH

    发明人： Schill, Dietmar, Sony International (Europe) GmbH ,  Wildhagen, Jens, Sony International (Europe) GmbH

    IPC分类号： H04H1/00 ,  H04B1/10 ,  H04L27/26

    CPC分类号： H04L27/2647 ,  H04B1/1081 ,  H04H2201/12 ,  H04L25/0204 ,  H04L2025/03414 ,  H04L2025/03522

    摘要： A receiver for simulcast signals and a method for receiving a simulcast signal transmitted via a distorted channel is described. By means of a bandpass filter, an initial digital signal is separated from the simulcast signal. This initial digital signal is subtracted from said simulcast signal, and as a result of the subtraction, an intermediate analogue signal is obtained. With respect to the initial digital signal, a channel estimation and equalization is performed. Thus, it is possible to estimate the channel's frequency response, to remove channel impairments due to frequency selective fading and/or to non-symmetric receiver input filter, and to generate a corrected digital signal. Said corrected digital signal, or a signal derived therefrom, is added to said intermediate analogue signal, in order to obtain the simulcast signal's analogue signal part.

    摘要翻译： 描述了用于同播信号的接收机和用于接收经由失真信道发送的同播信号的方法。 通过带通滤波器，初始数字信号与联播信号分离。 从所述同播信号中减去该初始数字信号，作为减法的结果，获得中间模拟信号。 对于初始数字信号，执行信道估计和均衡。 因此，可以估计信道的频率响应，以消除由于频率选择性衰落引起的信道损伤和/或去除非对称接收机输入滤波器，并产生校正的数字信号。 为了获得联播信号的模拟信号部分，将所述校正的数字信号或从其导出的信号添加到所述中间模拟信号。