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公开(公告)号:US06693958B1
公开(公告)日:2004-02-17
申请号:US09218186
申请日:1998-12-22
申请人: Tian Jun Wang , Dong-Chang Shiue , Adolf D'Souza
发明人: Tian Jun Wang , Dong-Chang Shiue , Adolf D'Souza
IPC分类号: H04L2503
CPC分类号: H04H40/18 , H04L25/03057 , H04L2025/03382 , H04L2025/0349 , H04L2025/03617 , H04L2025/0363 , H04L2025/03726 , H04L2025/03789 , H04N5/211
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。