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为了提高多输入多输出(m u ltip le-inpu t m u ltip le-ou tpu t,M IM O)系统接收机在循环对称α稳定冲击噪声下的鲁棒性,基于最大似然准则和C auchy原型分布提出了空间复用和空时编码两种M IM O系统的新的接收机设计方案。通过压缩需要搜索的信号空间大小,进一步设计了两种低复杂度的改进的空间复用系统接收机并推导了改进接收机的复杂度阶数。仿真表明提出的接收机具有非常好的鲁棒性且这种鲁棒性不以G auss噪声下的性能降低为代价。
In order to improve the robustness of MIP receiver under cyclic symmetric αstabilistic impulsive noise, based on the maximum likelihood criterion and the C auchy prototype distribution A new receiver design scheme of two M IM O systems, spatial multiplexing and space-time coding, is proposed. By compressing the size of the signal space to be searched, two kinds of improved space-multiplexed system receivers with low complexity are further designed and the order of complexity of the improved receiver is deduced. Simulation shows that the proposed receiver has very good robustness and this robustness does not come at the cost of performance degradation at G auss noise.