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无线正交频分复用系统信道序惯盲检测

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摘要 针对正交频分复用(OFDM)系统信道的时变特性,提出若干新型算法,依序对OFDM信道进行盲检测。结合OFDM系统的结构特点,给出了一种基于期望最大化(EM)方法的迭代算法(OEM),该算法可用来计算OFDM系统信道参数的最大似然(ML)估计值。在此基础上,为了降低计算复杂度,避免由于矩阵求逆而带来的风险,提出了一种新颖的递归计算方法(ROEM)。仿真结果显示,所提出的算法,其误码率低于其他类型的盲检测/估计算法。
作者 方承志
出处 《江苏通信》 2011年第2期49-52,共4页 Jiangsu Communication
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参考文献9

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二级参考文献6

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