Moon-based Synthetic Aperture Radar: Review and challenges
Moon-based Synthetic Aperture Radar: Review and challenges
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DOI：
10.1109/igarss.2016.7729961
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发表时间：
2016-07
期刊：
影响因子：
--
通讯作者：
A. Renga;A. Moccia
中科院分区：
文献类型：
--
作者：
A. Renga;A. Moccia
基于近年来人们对利用月球作为对地遥感平台的新兴趣，本文综述了月基合成孔径雷达（SAR）的概念。这种系统具有一些不同于常规星载合成孔径雷达的特点。实际上，天线合成的过程和观测的几何形状是完全不同的。天文台的平台不是一个轨道器或空间编队，而是一个完整的天体。地月相对运动产生合成孔径，这种运动的性质允许利用非常长的合成天线。此外，两个或更多的天线可以位于月球表面上，实现分布式SAR，并使单程干涉SAR应用，如交叉跟踪干涉测量和层析成像。还讨论了这种月基天文台的系统参数和技术挑战。
Based on a recent renewed interest in the utilization of Moon as a platform for Earth remote sensing, this paper reviews the concept of a Moon-based Synthetic Aperture Radar (SAR). Such a system presents some features, which differentiate it from a conventional spaceborne SAR. Indeed process of antenna synthesis and the observation geometry are quite different. The platform, on which the observatory shall be build up, is not an orbiter or a space formation, but a whole celestial body. Earth-Moon relative motion generates the synthetic aperture and the properties of such a motion allow for the exploitation of very long synthetic antennas. Moreover two or more antennas can be located over lunar surface realizing a distributed SAR and enabling single-pass interferometric SAR applications, e.g. cross-track interferometry and tomography. System parameters and technological challenges of such a Moon-based observatory are also discussed.