Analysis of High Resolution SAR Data and Selection of Landing Sites in the Permanently Shadowed Region on the Moon

LIU Niutao, SHI Xianzheng, XU Feng, JIN Yaqiu

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Journal of Deep Space Exploration ›› 2022, Vol. 9 ›› Issue (1) : 42-52. DOI: 10.15982/j.issn.2096-9287.2022.20210134
Special Issue:Technology and Application of Deep Space Exploration
Special Issue:Technology and Application of Deep Space Exploration

Analysis of High Resolution SAR Data and Selection of Landing Sites in the Permanently Shadowed Region on the Moon

  • LIU Niutao, SHI Xianzheng, XU Feng, JIN Yaqiu
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Abstract

There is no direct solar illumination in the permanently shadowed regions (PSR) at the polar region of the Moon. Detecting water-ice in PSR is a significant scientific question. Until now, no spacecraft has landed in PSR. Chang’E-7 mission plans a rover landing at the solar illuminated region near PSR. A mini-flyer carried by the lander will fly to the PSR to collect regolith samples for analysis. Selection of landing site and sampling site is critical for the mission. The Polarization Synthetic Aperture Radar (Pol-SAR) onboard Chang’E-7 satellite can evaluate the roughness of lunar surface, the landing site, the sampling site and the flying trajectory with the assistance of high-resolution digital elevation model. By comparing the SAR data acquired by the Mini-RF onboard Lunar Reconnaissance Orbiter with the optical images at the solar illuminated region, we analyze the role that Pol-SAR play in selecting the flat landing site and sampling site. Regions near Hyginus crater and the landing site of Chang’E-4 mission are taken as examples. HRNet is used in lunar SAR image segmentation. The application of neutral network in lunar SAR image segmentation is discussed. Craters Shoemaker and Shackleton at lunar south pole are analyzed to find flat surface in PSR as potential landing sites. This paper provides a reliable reference for SAR detection in Chang’E-7 mission.

Keywords

Chang’E-7 mission / SAR / permanently shadowed regions / Mini-RF data / landing site / flat surface

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LIU Niutao, SHI Xianzheng, XU Feng, JIN Yaqiu. Analysis of High Resolution SAR Data and Selection of Landing Sites in the Permanently Shadowed Region on the Moon. Journal of Deep Space Exploration, 2022, 9(1): 42‒52 https://doi.org/10.15982/j.issn.2096-9287.2022.20210134

References

[1] ZOU Y,LIU Y,JIA Y. Overview of china’s upcoming Chang’E series and the scientifc objectives and payloads for Chang’E-7 mission[C]//The 51st Lunar and Planetary Science Conference. Woodlands,USA:2020.
[2] 吴伟仁,于登云,王赤,等. 月球极区探测的主要科学与技术问题研究[J]. 深空探测学报(中英文),2020,7(3):223-231
WU W R,YU D Y,WANG C,et al. Research on the main scientific and technological issues on lunar polar exploration[J]. Journal of Deep Space Exploration,2020,7(3):223-231
[3] 法文哲,徐丰,金亚秋. 基于不规则三角网格剖分的非均匀起伏月球表面SAR成像模拟[J]. 中国科学(F辑:信息科学),2009,39(2):185-198.
FA W Z,XU F,JIN Y Q. SAR imaging simulation for an inhomogeneous undulated lunar surface based on triangulated irregular network[J]. Science In China(Series F:Information Sciences),2009,39(2):185-198.
[4] RANEY R K,SPUDIS P D,BUSSEY B,et al. The lunar Mini-RF radars:hybrid polarimetric architecture and initial results[J]. Proceedings of the IEEE,2010,99(5):808-829
[5] LIU N,YE H,JIN Y Q. Dielectric inversion of lunar PSR media with topographic mapping and comment on “quantification of water ice in the Hermite—a crater of the lunar north pole”'[J]. IEEE Geoscience & Remote Sensing Letters,2017,14(9):1444-1448
[6] LIU N,FA W,JIN Y Q. No water-ice invertable in PSR of Hermite—a crater based on Mini-RF data and two-layers model[J]. IEEE Geoscience and Remote Sensing Letters,2018,15(10):1485-1489
[7] LIU N, JIN Y, Q. Selection of a landing site in the permanently shadowed portion of lunar polar regions using DEM and Mini-RF data [J]. IEEE Geoscience and Remote Sensing Letters, 2022, 19: 4503305.
[8] LIU N,XU F,JIN Y Q. Anomaly detection in permanently shadowed region at lunar polar using fully polarimetric SAR data of Chandrayanan-2 [J/OL]. IEEE Geoscience and Remote Sensing Letters, 2021, https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=36.
[9] LIU N,XU F,JIN Y Q. A Numerical model of CPR of rough surface with discrete scatterers for analysis of Mini-RF data[J]. Radio Science,2020,55(5): e2018RS006776.
[10] LIU N, JIN Y Q. Simulation of Pol-SAR imaging and data analysis of Mini-RF observation from the lunar surface [J]. IEEE Transactions on Geoscience and Remote Sensing,2021, 60: 2000411.
[11] SPUDIS P D,BUSSEY D B J,BALOGA S M,et al. Evidence for water ice on the Moon:results for anomalous polar craters from the LRO Mini‐RF imaging radar[J]. Journal of Geophysical Research:Planets,2013,118(10):2016-2029
[12] FA W,CAI Y. Circular polarization ratio characteristics of impact craters from Mini-RF observations and implications for ice detection at the polar regions of the Moon[J]. Journal of Geophysical Research:Planets,2013,118(8): 1582-1608.
[13] CAMPBELL B A. High circular polarization ratios in radar scattering from geologic targets [J]. Journal of Geophysical Research,2012,117(E6):E06008.
[14] CALLA O P N,MATHUR S,GADRI K L. Quantification of water ice in the Hermite—a crater of the lunar north pole[J]. IEEE Geoscience and Remote Sensing Letters,2016,13:926-930
[15] KUMAR A, KOCHAR I M, PANDEY D K, et al. Dielectric constant estimation of lunar surface using Mini-RF and Chandrayaan-2 SAR data [J]. IEEE Transactions on Geoscience and Remote Sensing, 2021, 60: 4600608.
[16] FASSETT C I,KING I R,NYPAVER C A,et al. Temporal evolution of S-band circular polarization ratios of kilometer-scale craters on the lunar maria[J]. Journal of Geophysical Research,2018,123:3133-3143
[17] LIU J,REN X,YAN W,et al. Descent trajectory reconstruction and landing site positioning of Chang’E-4 on the lunar farside[J]. Nature Communication,2019,10:4229
[18] 金亚秋,法文哲. 行星微波遥感理论方法与应用[M]. 北京:科学出版社,2019.
[19] SHI X,FU S,CHEN J,et al. Object-level semantic segmentation on the high-resolution Gaofen-3 FUSAR-Map dataset[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,2021,14(5):3107-3119
[20] RANEY R K,CAHILL J T S,PATTERSON G W,et al. The m-chi decomposition of hybrid dual‐polarimetric radar data with application to lunar craters[J]. Journal of Geophysical Research:Planets,2012,117(E12): E00H21.
[21] THOMPSON T W,USTINOV E A,HEGGY E. Modeling radar scattering from icy lunar regoliths at 13 cm and 4 cm wavelengths [J]. Journal of Geophysical Research:Planets,2011,116(E1): E01006.
[22] 金亚秋. 电磁散射和热辐射的遥感理论[M]. 北京:科学出版社,1993.
[23] ULABY F T,MOORE R K,FUNG A K. Microwave remote sensing fundamentals and radiometry [M]// Microwave Remote Sensing Active & Passive. Boston, MA, USA: Addison-Wesley, 1981.
[24] ROBINSON M S,BRYLOW S M,TSCHIMMEL M,et al. Lunar Reconnaissance Orbiter Camera (LROC) instrument overview[J]. Space Science Reviews ,2010,150:81-124
[25] SMITH D E,ZUBER M T,NEUMANN G A,et al. Summary of the results from the lunar orbiter laser altimeter after seven years in lunar orbit[J]. Icarus,2017,283:70-91
[26] NEISH C D,BLEWEET D T,HARMON J K,et al. A comparison of rayed craters on the Moon and Mercury[J]. Journal of Geophysical Research:Planets,2013,118(10):2247-2261
[27] BHIRAVARASU S S,CHAKRABORTY T,PUTREVU D,et al. Chandrayaan-2 Dual-frequency Synthetic Aperture Radar (DFSAR):performance characterization and initial results[J]. The Planetary Science Journal,2021,2:1-21
[28] 徐丰,王海鹏,金亚秋. 合成孔径雷达图像智能解译[M]. 北京:科学出版社,2020.
[29] WANG J,SUN K,CHENG T,et al. Deep high-resolution representation learning for visual recognition[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,2021,43(10):3349-3364
[30] EKE V R,BARTRAM S A,LANE D A,et al. Lunar polar craters-icy,rough or just sloping?[J]. Icarus,2014,241:66-78
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