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    • 37. 发明专利
    • Coefficient decision device, equalizer, receiver, and transmitter
    • 系统决策设备,均衡器,接收器和发送器
    • JP2014060708A
    • 2014-04-03
    • JP2013180124
    • 2013-08-30
    • Fujitsu Ltd富士通株式会社
    • YAN MENGTAO ZHENNINGLI LEI
    • H04B3/10H04L27/01
    • H04B10/2507H04L7/042H04L25/03006H04L2027/0026
    • PROBLEM TO BE SOLVED: To provide a coefficient decision device capable of approximately compensating for signal damages by determining an initial tap coefficient for an equalizer closer to an optimum value by using a training sequence provided in a transmission signal, and then causing a receiver to further process the signals.SOLUTION: A coefficient decision device includes a synchronizer for searching for a position of a training sequence within a data signal, where the training sequence is provided in the data signal received from a transmitter, and a first processing device for determining an initial tap coefficient for an equalizer based on the received data signal and training sequence. In each polarized wave condition, the training sequence includes n pairs of training codes, and in the n pairs of training codes, the training codes of the same pair are identical, the training codes of the different pair are different, a cyclic prefix and a cyclic postfix are respectively provided before and after each pair of training codes, and n is an integer greater than 1.
    • 要解决的问题:提供一种能够通过使用在发送信号中提供的训练序列确定更接近最佳值的均衡器的初始抽头系数,并且然后使接收器进一步提供能够近似补偿信号损伤的系数判定装置 处理信号。解决方案:系数判定装置包括用于搜索在从发送器接收的数据信号中提供训练序列的数据信号内的训练序列的位置的同步器,以及用于确定 基于所接收的数据信号和训练序列的均衡器的初始抽头系数。 在每个极化波条件下,训练序列包括n对训练码,并且在n对训练码中,同一对训练码相同,不同对的训练码不同,循环前缀和 分别在每对训练码之前和之后提供循环后缀,并且n是大于1的整数。