三角排布圆形阵列天线降维STAP研究

摘要

本文对弹载三角排布圆形阵列天线STAP处理器的降维处理方法进行了研究.针对现有子阵划分的不足,提出了一种应用于弹载三角排布圆形阵列的子阵划分方法,该方法采取矩形框行列步进固定长度遍历圆阵来实现子阵旋转布阵.仿真分析对比了这种子阵划分方法与其他子阵划分方法在不同旋转角度下的杂波抑制性能.结果表明:本文子阵划分方案杂波抑制性能接近最优,不会产生角度模糊,并且在不同旋转角度下性能保持稳定,可用于现实旋转弹载圆形阵的STAP.%A reduced-rank STAP processor is studied in this paper. A new subarray division method is proposed for circular array with triangular arrangement. By this method,rotated subarrays are obtained by using a rectangular box with fixed step to traverse the circular array. The clutter suppression perform-ance of this subarray division method and other subarray partitioning methods at different rotation angles is evaluated. Simulation results show that the clutter suppression performance of the proposed method is close to the optimal value, and the clutter surpression performance is stable at different rotation angles.