Sea clutter suppression for shipborne HFSWR using joint sparse recovery-based STAP
Sea clutter suppression for shipborne HFSWR using joint sparse recovery-based STAP
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DOI：
10.1049/el.2016.0212
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发表时间：
2016-05
影响因子：
1.1
通讯作者：
Yongpeng Zhu;Yinsheng Wei;Kaihui Zhu
中科院分区：
文献类型：
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作者：
Yongpeng Zhu;Yinsheng Wei;Kaihui Zhu
针对船载高频面波雷达海杂波固有的稀疏性，提出一种基于联合稀疏恢复的空时自适应处理（STAP）技术来抑制传播的海杂波。在所提出的方法中，首先使用来自仅一个距离单元的训练样本来估计部分杂波子空间。随后，推导了使用倾斜投影仪的广义匹配追踪方法来恢复互补杂波子空间。海杂波抑制器最终由STAP建造。实验结果表明，该方法能够获得更准确的海杂波频谱估计，从而获得更好的抑制性能。
On the basis of the intrinsic sparsity of sea clutter in shipborne high-frequency surface wave radar, a joint sparse recovery-based space–time adaptive processing (STAP) technique is proposed to suppress the spread sea clutter. In the proposed method, the partial clutter subspace is first estimated with training samples from only one range cell. Afterwards, a generalised matching pursuit method using the oblique projector is derived to recover the complementary clutter subspace. The sea clutter suppressor is finally constructed by STAP. According to experimental results, the proposed method can obtain a more accurate estimation of sea clutter spectrum and thus achieve better suppression performance.