Here, a high-precision mutual coupling coefficient estimation method is proposed that is more suitable for adaptive beamforming than traditional algorithms. According to the relationship between the designed transition matrix and the signal, the proposed algorithm selects the transition matrix corresponding to the high-power signal. The high-precision estimation of the mutual coupling coefficient is obtained by using the selected transition matrix estimation, which yields relatively good estimation accuracy for the mutual coupling coefficient when the desired signal-to-noise ratio (SNR) is low and relatively robust adaptive beamforming with unknown mutual coupling. Simulation results demonstrate the validity of the proposed method.

中文翻译：

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自适应波束形成的高精度互耦合系数估计

在此，提出一种比传统算法更适合于自适应波束形成的高精度互耦合系数估计方法。根据设计的过渡矩阵与信号之间的关系，提出的算法选择与大功率信号对应的过渡矩阵。互耦系数的高精度估算是通过使用选定的过渡矩阵估算获得的，当所需的信噪比（SNR）低且自适应波束成形相对较健壮时，互耦系数的估算精度较高具有未知的相互耦合。仿真结果证明了该方法的有效性。