Multipath Exploitation and Suppression for SAR Imaging of Building Interiors: An overview of recent advances
Multipath Exploitation and Suppression for SAR Imaging of Building Interiors: An overview of recent advances
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DOI：
10.1109/msp.2014.2312203
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发表时间：
2014-06
影响因子：
14.9
通讯作者：
M. Leigsnering;M. Amin;F. Ahmad;A. Zoubir
中科院分区：
文献类型：
--
作者：
M. Leigsnering;M. Amin;F. Ahmad;A. Zoubir
涉及目标散射的多路径是合成孔径雷达（SAR）中的一个重要现象。它在建筑内部的成像中非常明显，因为墙壁、天花板和地板围绕着感兴趣的目标。目标多径杂波是一种特殊类型的杂波，既可以抑制，也可以利用。后者已成为SAR成像领域许多近期工作的主题，并已导致目标检测和定位方面的切实改进。在本文中，我们考虑了最先进的多路径抑制和利用方法，提出了相应的分析模型，并强调了它们各自的要求、假设和产品。讨论了传统的和基于压缩感知的方法，后者假设存在一些墙后目标。
Multipath that involves target scattering is an important phenomenon in synthetic aperture radar (SAR). It is highly pronounced in imaging of building interiors due to the presence of walls, ceilings, and floors surrounding the targets of interest. Multipath attributed to targets is a special type of clutter, which can be either suppressed or exploited. The latter has been the subject of many recent works in the area of SAR imaging and has led to tangible improvements in target detection and localization. In this article, we consider state-of-the-art multipath suppression and exploitation approaches, present their corresponding analytical models, and highlight their respective requirements, assumptions, and offerings. Both conventional and compressive sensing-based approaches are discussed, where the latter assumes the presence of a few behind-the-wall targets.