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Synthetic Aperture Radar for Earth Observation from a Lunar Base: Performance and Potential Applications

机译:用于从月球基地进行地球观测的合成孔径雷达:性能和潜在应用

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摘要

Starting from the reborn international interest in lunar exploration and the widely documented need for hyper-accurate measurements of Earth crustal dynamics, at a high revisit frequency and on a global scale, the idea of a Moon-based interferometric synthetic aperture radar (SAR) is presented. After introducing models to describe synthetic antenna formation and discussing key issues of a Moon-based radar for Earth remote sensing, a preliminary system design and performance analysis are conducted. Quantitative results are presented in terms of achievable resolutions and needed radar parameters. Although the Moon-based observatory requires technical solutions and a budget that likely make its realization distant, a comparison with currently planned spaceborne interferometric systems shows that it offers height measurement accuracies at a level and with a frequency not achievable otherwise.
机译:从重生的国际关注月球探索和广为记录的对地壳动力学的高精度测量开始,以较高的再访频率和全球规模,基于月球的干涉式合成孔径雷达(SAR)的构想提出了。在介绍了用于描述合成天线形成的模型并讨论了用于地球遥感的基于月球的雷达的关键问题之后,进行了初步的系统设计和性能分析。定量结果以可达到的分辨率和所需的雷达参数表示。尽管基于月球的天文台需要技术解决方案和可能使实现距离遥远的预算,但与目前计划的星载干涉测量系统进行比较表明,它提供了无法达到的水平和频率高度测量精度。

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