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介绍了方向图重建方法,并将该方法应用在自适应阵列的互耦校准中。该方法基于天线方向图与阵列接收信号间的关系,通过对阵列单元方向图的变换得到阵列互耦校准矩阵。方向图重建方法对于阵列单元结构具有广泛的适应性,不仅可用于线天线阵列,也可用于由微带天线这类平面单元构成的阵列中。论文推导了互耦校准矩阵的公式,并采用一个对称振子阵列、一个微带阵列和一个柱面共形阵列验证了本方法的有效性。
The method of direction reconstruction is introduced and the method is applied to the mutual coupling calibration of adaptive array. Based on the relationship between the antenna pattern and the array received signal, the method obtains the array mutual coupling calibration matrix through the transformation of the array unit pattern. The pattern reconstruction method has wide adaptability to the array element structure, and can be used not only for the line antenna array but also for the array formed by the planar elements such as the microstrip antenna. The paper derives the formula of the mutual coupling calibration matrix and validates the effectiveness of the method by using a symmetric oscillator array, a microstrip array and a cylindrical conformal array.