共形阵广义旁瓣对消辅助通道优选

广义旁瓣对消器GSC在传统的机载相控阵雷达的干扰抑制中有着广泛应用，辅助通道的选择直接影响干扰抑制效果。在共形阵列中，由于各个阵元的摆放方式不同导致每个阵元的单元方向图响应并不相同，选择合适的辅助通道更为重要。该文在共形阵信号模型基础上，提出了一种以最小化广义旁瓣对消输出为目标的优化方法。为了解决非凸的0-1优化问题，该文采用惩罚序列凸规划SCP算法，并基于最大最小MM算法求解。仿真和数值结果证明了该文算法在共形阵下能准确选择出具有良好干扰抑制性能的辅助通道。

The Optimization of Auxiliary Channel Selection for Generalized Sidelobe Cancellation in Conformal Array

The generalized sidelobe canceller (GSC) is utilized widely in the interference suppression in the traditional airborne phased array radars. The selection of the auxiliary channels in the GSC affects the interference suppression performance directly. In a conformal array, the unit pattern response of each array element is not the same due to the different placements of array elements. Therefore, it is more significant to select the appropriate auxiliary channels for the GSC. Based on the signal model of the conformal array, this paper proposes an optimization method which aims to minimize the output of generalized sidelobe cancellation. In order to solve the non-convex 0-1 optimization problem, the paper adopts the penalty sequential convex programming (SCP) method and the majorization-minimization (MM) algorithm to solve it. The simulation and numerical results prove that the proposed algorithm can select the auxiliary channels with great interference suppression performance in the conformal array.