研究了和差空时自适应处理(ΣΔ-STAP)在机载火控雷达中的应用,针对在实际处理中,由于地面杂波的非均匀性将 严重影响撞驻鄄3DT算法处理的效果,在此结合非均匀环境STAP处理,采用功率选择训练的非均匀处理方法,降低了STAP 处理代价,实际处理结果显示,该处理显著提高杂波估计和抑制性能,较大提高了动目标的检测性能,文中还对目标径向 速度的估计和方位定位问题进行研究,为该技术用于机载火控雷达地面动目标检测创造了条件。

Sum and difference channels STAP for Airborne fire-control radar are studied in this paper. The clutter statistics have a dependence on range in practice, which is called non-stationary clutter and will degrade the performance of ΣΔ-3DT. In this paper we propose power selecting training method for non-stationary clutter estimation. Experimental results show this scheme can improve clutter estimation and suppression performance, while this algorithm may improve ground moving targets detection performances. The radial velocity esimation and azimuth location for targets are also discussed. This would create certain conditions for airborne fire-control radar ground moving targets.