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On-board regeneration of uplink signals using a blind multichannelestimator

机译:使用盲多信道估计器进行上行信号的机载再生

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摘要

We propose a restoration method to compensate distortions caused by cross-polarization interference (CPI) and multipath propagation when multichannel transmission is employed in the uplink of an on-board-processing (OBP) satellite. The proposed baseband signal processing architecture is numerically robust and efficient as vector operations are avoided by efficient orthogonal transformations. Since the algorithm is based on higher-than-second-order statistics, the method is very effective in severe distortion conditions where a traditional, perfectly trained Kalman multichannel filter obtains poor performance
机译:我们提出一种恢复方法,以补偿在机载处理(OBP)卫星的上行链路中采用多信道传输时由交叉极化干扰(CPI)和多径传播引起的失真。所提出的基带信号处理体系结构在数值上是鲁棒的和有效的,因为通过有效的正交变换避免了向量运算。由于该算法基于高于二阶的统计量,因此该方法在严重失真的情况下非常有效,在这种情况下,传统的,训练有素的卡尔曼多通道滤波器的性能很差

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