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    • 4. 发明授权
    • Equalizer and equalization method
    • 均衡器和均衡方法
    • US07042935B2
    • 2006-05-09
    • US10011273
    • 2001-12-11
    • Nobuaki KawaharaMasashi Naito
    • Nobuaki KawaharaMasashi Naito
    • H03H7/30
    • H04L25/03114H04L7/04H04L2025/0342H04L2025/0377
    • An equalizer and an equalization method capable of suppressing distortion specific to radio unit and reducing both the oversampling number and the amount of calculations without causing characteristic deterioration. The equalizer, which equalizes a received signal with periodically inserted known pilot symbols, includes a synchronization processing section that detects symbol synchronization points using pilot symbols included in the received signal, a plurality of equalization factor calculation sections which use the symbol synchronization points and points shifted in time before and after the symbol synchronization point as symbol synchronization point candidates, and calculate equalization factors for the respective symbol synchronization point candidates, and an optimization/equalization processing section which selects an optimal symbol synchronization point and corresponding optimal equalization factor from among a plurality of symbol synchronization point candidates and corresponding equalization factors, and equalizes the received signal using the optimal equalization factor.
    • 一种均衡器和均衡方法,其能够抑制无线电单元特有的失真并减少过采样数量和计算量而不引起特性劣化。 使用周期性插入的已知导频符号来均衡接收信号的均衡器包括使用包括在接收信号中的导频符号来检测符号同步点的同步处理部分,使用符号同步点和偏移点的多个均衡因子计算部分 在符号同步点之前和之后的时间作为符号同步点候选,并计算各个符号同步点候选的均衡因子,以及优化/均衡处理部,其从多个中选择最佳符号同步点和对应的最优均衡因子 的符号同步点候选和相应的均衡因子,并且使用最优均衡因子来均衡接收信号。