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DVB-T-TimingaChannelEstimation

于 2015-02-11 发布文件大小:5KB

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DVB-T 2k模式定时估计Matlab仿真。重新修改了程序。包括DVB-T信号产生，瑞利多径信道衰减，高斯噪声加入。定时估计的粗定时用极大似然法，细定时用分散导频。首先确定导频模式，再通过相邻导频相关确定定时偏差。此方法适用于瑞利多径信道，高斯信道，也适用于莱斯多径信道。信道估计利用DVB-T导频，LS估计，导频位置的时间插值，非导频位置频率插值，非常有效。该程序经过多次运行无误，不足之处在于变量使用不规范，注释简单，读程序很费劲哈。其特点是均采用经典算法，简单有效为主，对初学者很有帮助滴。(DVB-T 2k signal, timing estimation, channel estimation)

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DVB_T_tongbu_new.m,13108,2015-02-11

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