Adaptive channel equalizer having a training mode
    1.
    发明授权
    Adaptive channel equalizer having a training mode 有权
    具有训练模式的自适应信道均衡器

    公开(公告)号:US06693958B1

    公开(公告)日:2004-02-17

    申请号:US09218186

    申请日:1998-12-22

    IPC分类号: H04L2503

    摘要: An adaptive channel equalizer (50) for processing a demodulated VSB signal containing terrestrial broadcast high definition television information operates adaptively in blind, training, and decision-directed modes. The VSB signal is characterized by a data frame format (FIG. 2) constituted by a succession of data fields each containing a data segment prefaced by a field sync segment. Equalization is expedited by recycling (35) received training data through the equalizer more than once during a VSB data field after a field sync segment is detected.

    摘要翻译: 用于处理包含地面广播高分辨率电视信息的解调的VSB信号的自适应信道均衡器(50)在盲目,训练和决策导向模式中自适应地进行操作。 VSB信号的特征在于由一系列数据字段构成的数据帧格式(图2),每个数据字段包含以字段同步段为前缀的数据段。 在检测到场同步段之后的VSB数据场期间,通过均衡器多次接收(35)接收到的训练数据来加速均衡。