Echo simulation of lunar penetrating radar: based on a model of inhomogeneous multilayer lunar regolith structure

被引：18

作者：

Dai, Shun ^{[1
]}

Su, Yan ^{[1
]}

Xiao, Yuan ^{[1
,2
]}

Feng, Jian-Qing ^{[1
,2
]}

Xing, Shu-Guo ^{[1
,2
]}

Ding, Chun-Yu ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Key Lab Lunar & Deep Space Explorat, Beijing 100012, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2014年 / 14卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Moon; techniques: radar astronomy; methods: numerical; SOUNDER; ONBOARD; ROVER;

D O I：

10.1088/1674-4527/14/12/012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Lunar Penetrating Radar (LPR) based on the time domain Ultra-Wideband (UWB) technique onboard China's Chang'e-3 (CE-3) rover, has the goal of investigating the lunar subsurface structure and detecting the depth of lunar regolith. An inhomogeneous multi-layer microwave transfer inverse-model is established. The dielectric constant of the lunar regolith, the velocity of propagation, the reflection, refraction and transmission at interfaces, and the resolution are discussed. The model is further used to numerically simulate and analyze temporal variations in the echo obtained from the LPR attached on CE-3's rover, to reveal the location and structure of lunar regolith. The thickness of the lunar regolith is calculated by a comparison between the simulated radar B-scan images based on the model and the detected result taken from the CE-3 lunar mission. The potential scientific return from LPR echoes taken from the landing region is also discussed.

引用

页码：1642 / 1653

页数：12

共 24 条

[1] A fully three-dimensional simulation of a ground-penetrating radar: FDTD theory compared with experiment [J].