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Performance verification of Lunar Regolith Penetrating Array Radar of Chang'E-5 mission

机译：E娥五号任务月球穿甲弹阵列雷达性能验证

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Lunar Regolith Penetrating Array Radar (LRPR) is one main payload of the Lander for Chinese Chang'E-5 (CE-5) mission. It is used to support the drilling and sampling device and to detect lunar regolith thickness and structure of the landing site. LRPR will only work in situ under static status, so the antenna array is employed. Since the antenna array is about 90 cm high from the ground, the layout is irregular, and the metal structure of the lander seriously interferes with LRPR, these factors make it very difficult to reconstruct the image of the drilling area, so the performance verification must be carried out. We propose a set of methods to process LRPR's data and reconstruct image. The verification experiments demonstrate that these methods are suitable for LRPR, the thickness and structure of the lunar regolith from zero to two meters can be clearly mapped, the vertical resolution is a few centimeters, and the electromagnetic properties of the subsurface can be estimated. Therefore, the performance of LRPR meets the requirements, and LRPR can successfully support drilling and sampling. (C) 2018 COSPAR. Published by Elsevier Ltd. All rights reserved.
机译：月球雷戈利斯穿透式雷达（LRPR）是中国执行er娥五号（CE-5）任务的着陆器的主要有效载荷。它用于支撑钻探和采样设备，并检测登月石的厚度和着陆点的结构。 LRPR将仅在静态状态下原位工作，因此采用了天线阵列。由于天线阵列距离地面约90 cm高，布局不规则，着陆器的金属结构严重干扰LRPR，这些因素使得重建钻孔区域的图像非常困难，因此必须进行性能验证被执行。我们提出了一套处理LRPR数据和重建图像的方法。验证实验表明，这些方法适用于LRPR，可以清晰地绘制从零到两米的月球巨石的厚度和结构，垂直分辨率只有几厘米，并且可以估算地下电磁特性。因此，LRPR的性能可以满足要求，并且LRPR可以成功地支持钻井和采样。 （C）2018年COSPAR。由Elsevier Ltd.出版。保留所有权利。

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