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提出了一种抑制机载相控阵雷达地杂波的时-空二维自适应处理新方法,将Capon滤波法[3]作了修改,除待检测的多普勒通道输出的一组数据外,还将其左右相邻多普勒通道输出的另两组数据也加入进行自适应处理,本文将功率例置法推广应用于这三组数据,作时空二维处理,计算机模拟结果表明新方法比Capon滤波法对阵元幅相误差具有更强的容差能力,对低速目标的检测性能有明显的改善。
A new time-space two-dimensional adaptive clutter suppression method for airborne phased array radar was proposed. Capon filter method [3] was modified. In addition to a set of data output from the Doppler channel to be detected, In addition, the other two sets of data output from the adjacent Doppler channels are also added for adaptive processing. In this paper, the power set method is extended to three sets of data for two-dimensional space-time processing. Computer simulation results show that the new Compared with the Capon filter method, the method has more tolerance to amplitude and phase error of array element, and obviously improves the detection performance of low-speed target.