阵列天线系统的最小互信息盲接收器

提出了平衰落信道中阵列天线多输入多输出(MIMO)系统的基于广义高斯分布近似的最小互信息盲接收器(GGMIR)。该接收器采用输出信号的广义高斯分布近似，基于互信息目标函数最小化的方法自适应调整接收器的系数。比较了基于广义高斯分布近似和非线性变换(NLMIR)的两种最小互信息盲接收算法。实验表明基于广义高斯分布近似自适应盲接收算法GGMIR比NLMIR算法有更快的收敛速率，得到的信号星座图有更大的距离和更好的误码性能。

Minimum Mutual Information Blind Receiver of Array Antenna System

Minimum Mutual Information Blind Receiver for array antenna system in flat fading channel is proposed in this paper.Based on the method of minimizing of mutual information and approximated generalized Gaussian distribution of the receivers output signal,the receiver change its coefficients adaptively. Minimum mutual information blind receiver that based on approximated generalized Gaussian distribution (GGMIR) and that use nonlinear transformation (NLMIR) are compared.Simulation shows that GGMIR has much faster convergence rate,much larger equalized constellation distance and much better BER(Bit Error Rate) performance.