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Blind Paraunitary Equalization

机译:盲超unit均等化

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摘要

In this paper a blind multiple-input/multiple-output (MIMO) space-time equalizer is described, dedicated to convolutive mixtures when observations have been pre-whitened. Filters preserving space-time whiteness are paraunitary; a parameterization of such filters with plane rotations is proposed. Theoretical developments then lead to a numerical algorithm that sweeps all pairs of delayed outputs. This algorithm involves the solution of a polynomial system in two unknowns, whose coefficients depend on the output cumulants. Simulations and performance of the numerical algorithm are reported.
机译:在本文中,描述了一种盲多输入/多输出(MIMO)时空均衡器,专用于在观测值已预先变白时进行卷积混合。保留时空白度的过滤器是超单位的;提出了具有平面旋转的这种滤波器的参数化。理论上的发展随后导致了一种数值算法,可以扫清所有成对的延迟输出。该算法涉及两个未知数的多项式系统的解,其系数取决于输出累积量。报告了数值算法的仿真和性能。

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