Target Reconstruction From Deceptively Jammed Single-Channel SAR
Target Reconstruction From Deceptively Jammed Single-Channel SAR
复制标题
从欺骗性干扰的单通道 SAR 中重建目标
DOI：
10.1109/tgrs.2017.2744178
复制
发表时间：
2018-01-01
影响因子：
8.2
通讯作者：
Zhang, Peichang
中科院分区：
文献类型：
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作者：
Zhao, Bo;Huang, Lei;Zhang, Peichang
研究了单通道合成孔径雷达（SAR）成像系统在受到欺骗性干扰后的真实目标重建问题。由于欺骗干扰通常局限于SAR天线的主瓣内，其时频分布与真实回波的时频分布不同。这使我们能够利用动态合成孔径（DSA）计划，以提取真假目标的特征。通过考虑散射体之间的相互作用，构建了关于真目标和假目标的字典。然后通过求解一个稀疏驱动的优化问题，分别对真目标和假目标进行超分辨率重建。此外，欺骗性干扰SAR数据划分为不同的区域，以有效地处理各种情况下，DSA的选择策略以及解决。仿真结果验证了该算法的有效性。
This paper considers the problem of reconstructing true targets in a single-channel synthetic aperture radar (SAR) imaging system, which has been disturbed by deceptive jammings. Since the deceptive jammings are usually confined to the main lobe of an SAR antenna, their time–frequency distributions are different from those of the true echoes. This enables us to utilize a dynamic synthetic aperture (DSA) scheme to extract the characteristics of the true and false targets. Dictionaries about the true and false targets are constructed by taking interactions between scatterers into account. Then a sparsity-driven optimization problem is solved to reconstruct the true and false targets separately with super-resolution. Moreover, the deceptively jammed SAR data are divided into different areas to handle various scenarios efficiently, and strategies for DSA selection are addressed as well. Simulations are provided to verify the effectiveness of the proposed algorithm.