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    • 2. 发明申请
    • 周波数誤差推定を行う受信機および周波数誤差の推定方法
    • 频率误差估计接收机和频率误差估计方法
    • WO2002082758A1
    • 2002-10-17
    • PCT/JP2002/002443
    • 2002-03-14
    • 三菱電機株式会社棚田 一夫久保 博嗣浦口 剛
    • 棚田 一夫久保 博嗣浦口 剛
    • H04L27/22
    • H04L7/042H04L27/0014H04L2027/0034H04L2027/0048H04L2027/0065H04L2027/0095
    • A frequency error estimating receiver comprising sampling means for sampling the received signal sequentially, a plurality of decoding means for which different frequency correction values are preset and which corrects the frequency of each sample of the received signal according to the frequency correction values, demodulates each sample after the frequency correction, outputs the judgment values of the received signal and reliability information, and thereby detects a known synchronous word inserted into the received signal from each of the judgment values, judgment value selecting means for selecting one final judgment value from the judgment values on the basis of the reliability information and the synchronous word detection result outputted from the decoding means, and frequency error detecting means for estimating the frequency error of the received signal on the basis of the frequency correction values of the decoding means, which correspond to the final judgment value.
    • 一种频率误差估计接收机,包括用于顺序对接收信号进行采样的采样装置,根据频率校正值对不同的频率校正值进行预设并且校正接收信号的每个样本的频率的多个解码装置, 在频率校正之后,输出接收信号和可靠性信息的判断值,从而从每个判断值检测插入到接收信号中的已知同步字,判断值选择装置,根据判断值选择一个最终判断值 基于从解码装置输出的可靠性信息和同步字检测结果,以及频率误差检测装置,用于根据解码装置的频率校正值来估计接收信号的频率误差, 最终判断价值。