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中文摘要：
针对天线阵单元间互耦会导致智能天线性能下降这一问题，提出了一种盲校正方法。该方法基于均匀圆阵（UCA）互耦矩阵的特殊结构形式，利用子空间原理和拉格朗日乘子法，不需要任何辅助信号源就能同时完成阵列误差的校正和波达方向（DOA）的估计。在进行计算机仿真时，还提出了以空间响应相关系数（SRCC）为准则来详细地分析互耦对阵列性能的影响，并通过一些典型的例子证明了所提出的盲校正方法的可行性。
英文摘要：
In view of the fact that mutual coupling between elements in smart antennas always degrades the array processing performance, the paper proposes a novel blind calibration method for compensation of the error caused by the coupling. Based on the special structure of mutual coupling matrix of a uniform circular array, the proposed method uses the subspace principle and the method of lagrange multipliers to carry out both array calibration and direction-of-arrival estimation simultaneously without using any auxiliary signal sources. During the computer simulations, SRCC, i.e. spatial response correlation coefficient, was presented as a measure to quantify the effect of mutual coupling on the array in detail, and the validity of the proposed blind calibration method was verified through a few of typical experiments.
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