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探地雷达对天体熔岩管探测技术类比研究OA北大核心CSTPCD

Analog Study of Ground-Penetrating Radar Technology for Lava Tube Detection

中文摘要英文摘要

熔岩管是建立地外天体基地首选地之一.为验证探地雷达对地外天体熔岩管探测的可行性,使用400 MHz探地雷达对海南海口石山火山群中的七十二洞和卧龙洞进行熔岩管探测技术类比研究.结果显示:管道上壁距离地面小于等于2 m时,雷达可清晰显示上界面;当熔岩管上、下界面高度小于3 m时,雷达图可观察到上、下分界面所在位置.使用遗传算法进行雷达数据反演,获得管壁介电常数,并与深度法和样品测量结果对比验证了该反演算法的可靠性.通过分析发现,样品孔隙度与介电常数存在关联性.探地雷达可有效测量地下熔岩管的内部空间信息,并用于未来月球基地建设的准备工作.

Lava tubes are one of the prime candidates for establishing extraterrestrial bases.To verify the feasibility of using ground-penetrating radar to detect lava tubes on extraterrestrial bodies,this paper first conducted a technical study to validate the detection of lava tubes using a 400 MHz ground-penetrating radar system on the Seventy-Two Caves and Wolong Cave in the Shishan Volcanic Group in Haikou,Hainan.It is found that the upper interface of the lava tube is clearly displayed when the depth of the tube is 2 m,and the radar image shows the upper and lower boundaries when the height is less than 3 meters.Additionally,the genetic algorithm is employed to inverse the dielectric constant of the lava tube's wall.The reliability of the genetic algorithm in calculating the dielectric constant is validated through comparison with results obtained from the depth method and sample measurement.Furthermore,the analysis of samples establishes a simple relationship between porosity and dielectric constant.These findings are of significant importance for assessing the underground spatial distribution and wall stability of the lava tubes,providing a reference for future lunar base establishment.

徐懿;陈锐;黄汉钧;孟新栋;陈一平;张领;张骏;肖龙

澳门科技大学 月球与行星科学国家重点实验室,澳门 999078中山大学 测绘科学与技术学院,珠海 519082澳门科技大学 月球与行星科学国家重点实验室,澳门 999078||中山大学 地球科学与工程学院,广州 510275中国地质大学(武汉)地球科学学院,武汉 430074

地质学

熔岩管探地雷达月球就位探测类比研究

lava tubeground penetrating radarMoonin-situ detectionanalog study

《深空探测学报(中英文)》 2024 (004)

365-373 / 9

澳门科学技术发展基金项目(FDCT No.0014/2022/A1)

10.15982/j.issn.2096-9287.2024.20230138

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