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为了减轻冲激噪声和多径干扰的影响,本文提出了一种基于DS-CDMA同步信道的空时非线性接收机。该接收机联合了线性解相关器和带有基于相关匹配M yriad非线性滤波器的非线性前端的天线阵列。将这种M yriad滤波器合并在一起以消除冲激噪声和阻止其进入系统。所提出的检测器采用了一种结构来估计冲激噪声系数和修正非线性滤波器系数。仿真结果表明,这种空时接收机在空时领域的非线性信号处理方面具有很好的性能。
In order to reduce the impact of impulse noise and multipath interference, this paper proposes a space-time nonlinear receiver based on DS-CDMA synchronization channel. The receiver combines a linear decorrelator and an antenna array with a non-linear frontend based on a correlation matched M y riad nonlinear filter. This Merriad filter is combined to eliminate impulse noise and prevent it from entering the system. The proposed detector uses a structure to estimate the impulse noise figure and to correct the non-linear filter coefficients. The simulation results show that this space-time receiver has good performance in the nonlinear signal processing in space-time domain.