Transmit beamforming for range ambiguous clutter mitigation in forward-looking STAP radar
Transmit beamforming for range ambiguous clutter mitigation in forward-looking STAP radar
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发射波束成形可减轻前视 STAP 雷达中的距离模糊杂波
DOI：
10.1049/ic.2011.0162
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Wilcox D
中科院分区：
文献类型：
--
作者：
Wilcox D
在前视空时自适应处理（STAP）雷达中，距离模糊会导致距离单元远离目标，从而为目标距离单元和训练数据提供额外的能量。由于杂波的角度-多普勒特性不同，这种额外的能量会严重降低目标检测性能。在这项工作中，我们研究了使用发射波束形成，以帮助克服这个问题，通过设计一个仰角波束图案，不照亮的模糊范围。这种波束图设计具有低复杂度的解决方案，并提供了在杂波训练数据的均匀性和总的接收杂波能量的改善。
In forward-looking space-time adaptive processing (STAP) radars, range ambiguity causes range bins far from the target of interest to contribute additional energy to the target range cell and training data. This additional energy can severely degrade target detection performance due to the different angle-Doppler characteristics of the clutter. In this work, we study the use of transmit beamforming to help overcome this problem by designing an elevation beampattern which does not illuminate the ambiguous ranges. This beampattern design has a low complexity solution and provides improvements in clutter training data homogeneity and total received clutter energy.