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    • 7. 发明授权
    • Transmitting/receiving system and method of processing broadcast signal in transmitting/receiving system
    • 发射/接收系统中的发射/接收系统和处理广播信号的方法
    • US08559564B2
    • 2013-10-15
    • US12783871
    • 2010-05-20
    • Jin Woo KimByoung Gill KimWon Gyu SongHyoung Gon LeeIn Hwan Choi
    • Jin Woo KimByoung Gill KimWon Gyu SongHyoung Gon LeeIn Hwan Choi
    • H04L27/00
    • H04L27/066H03M13/09H03M13/15H03M13/1515H03M13/2707H03M13/2915H03M13/2936H03M13/356H04L1/0041H04L1/0057H04L1/0065H04L1/0071H04L1/0082H04L25/0226H04L25/03012
    • A receiving system and a method of processing broadcast signals in the receiving system are disclosed. The receiving system includes a tuner, a known sequence detector, a carrier recovery unit, a baseband processor, and a channel equalizer. The tuner receives a broadcast signal of a passband including a data group. Herein, the data group comprises mobile service data, a plurality of known data sequences, and signaling data. The known sequence detector estimates an initial frequency offset and detects a position of each known data sequence based on the known data sequence having the first data pattern. The carrier recovery unit acquires an initial frequency synchronization using the initial frequency offset estimated by the known sequence detector and estimates a residual frequency offset based upon the known data sequences having the second data pattern so as to perform carrier recovery. The baseband processor performs complex multiplication between the received broadcast signal and an output of the carrier recovery unit, thereby converting the passband broadcast signal to a baseband broadcast signal.
    • 公开了一种在接收系统中处理广播信号的接收系统和方法。 接收系统包括调谐器,已知序列检测器,载波恢复单元,基带处理器和信道均衡器。 调谐器接收包括数据组的通带的广播信号。 这里,数据组包括移动业务数据,多个已知数据序列和信令数据。 已知的序列检测器估计初始频率偏移并且基于具有第一数据模式的已知数据序列来检测每个已知数据序列的位置。 载波恢复单元使用由已知序列检测器估计的初始频率偏移获取初始频率同步,并且基于具有第二数据模式的已知数据序列估计残余频率偏移,以便执行载波恢复。 基带处理器在接收到的广播信号和载波恢复单元的输出之间执行复数乘法,从而将通带广播信号转换为基带广播信号。