Abstract
在机载前视阵雷达中，由于杂波距离相关性的存在，导致待检测距离单元杂波的协方差矩阵估计存在偏差，致使空时自适应处理(STAP)的杂波抑制性能下降。空时插值法是一种内插变换方法，能够有效降低机载前视阵雷达杂波的杂波距离相关性，然而该方法计算量非常大，给它的实时处理带来困难。该文提出一种空时分离的插值方法，该方法将空时插值方法在空域和时域分别独立实现。与空时插值方法相比，该方法能够在性能损失不大的情况下，极大地降低计算量，并且当存在阵元误差时，该方法也能获得好的处理性能。计算机仿真结果验证了该方法的有效性。
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