The Status of Earth-based Radar Astronomical Observations of the Moon in China

Sun Jing; Yang Song; Zhou Feng; Ding Zonghua; Liu Lei; Cao Jianfeng; Han Songtao; Ping Jinsong

doi:10.14005/j.cnki.issn1672-7673.20210331.006

Astronomical Research and Technology > 2022 > 19(1): 29-40. > DOI: 10.14005/j.cnki.issn1672-7673.20210331.006 CSTR: 32083.14.j.cnki.issn1672-7673.20210331.006

Sun Jing, Yang Song, Zhou Feng, Ding Zonghua, Liu Lei, Cao Jianfeng, Han Songtao, Ping Jinsong. The Status of Earth-based Radar Astronomical Observations of the Moon in China[J]. Astronomical Research and Technology, 2022, 19(1): 29-40. DOI: 10.14005/j.cnki.issn1672-7673.20210331.006

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The Status of Earth-based Radar Astronomical Observations of the Moon in China

1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China;
2. China Research Institute of Radio-wave Propagation, Qingdao 266107, China;
3. Xidian University, Xi'an 710071, China;
4. Beijing Aerospace Control Center, Beijing 100094, China

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Received Date: January 18, 2021
Revised Date: March 01, 2021
Available Online: November 20, 2023

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Abstract

Abstract

Earth-based radar astronomical observations provide information on surface characteristics, orbits, and rotations for a wide variety of solar system objects. Based on compound radio telescopes, in cooperation with the Chinese radar transmitters, we present the current ground radar astronomical observations of the moon. The time delay and spectrum of the reflected radio signals were measured. Radar albedo of the observed region was determined with X band and UHF band, respectively. The power ratios of the reflected signals with left- and right-hand circular polarizations was also determined, allowing us to study the radar reflectivity and near-surface wavelength-scale roughness of the moon. The lunar mapping with QJISR radar confirms the prospect of the Earth-based radar astronomical technique. Future developments on radar astronomy are also discussed in the paper.
- earth-based radar,
- Moon,
- radar albedo,
- circular polarization ratio

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References (14)

References

[1]	王瑞刚, 苏彦, 洪天晟, 等. 表层穿透雷达在月球和深空探测中的应用[J]. 天文研究与技术, 2020, 17(4):492-512. WANG R G, SU Y, HONG T S, et al. A review of application of surface penetrating radarin the moon and deep-spaceexploration[J]. Astronomical Research & Technolog, 2020, 17(4):492-512.
[2]	丁春雨, 封剑青, 郑磊, 等. 雷达探测技术在探月中的应用[J]. 天文研究与技术, 2015, 12(2):228-242. DING C Y, FENG J Q, ZHENG L, et al. A review of applications of radar-detection techniques in lunar explorations[J]. Astronomical Research & Technolog, 2015, 12(2):228-242.
[3]	郑磊. 地基雷达对月成像数据处理方法研究[D]. 北京:中国科学院国家天文台, 2011. ZHENG L. The research on data processing of ground-based radar mapping of lunar surface[D]. Beijing:National Astronomical Observatories, Chinese Academy of Sciences, 2011.
[4]	THOMPSON T W. Atlas of lunar radar maps at 70-cm wavelength[J]. The Moon, 1974, 10(1):51-85.
[5]	SCHABER G G, THOMPSON T W, ZISK S H. Lava flows in Mare Imbrium:an evaluation of anomalously low Earth-based radar reflectivity[J]. The Moon, 1975, 13(4):395-423.
[6]	STACY N J S, CAMPBELL D B, FORD P G. Arecibo radar mapping of the lunar poles:a search for ice deposits[J]. Science, 1997, 276(6):148-152.
[7]	SHKURATOV Y G, BONDARENKO N V. Regolith layer thickness mapping of the Moon by radar and optical data[J]. Icarus, 2001, 149(2):329-338.
[8]	CAMPBELL B A, CAMPBELL D B. Regolith properties in the south polar region of the Moon from 70-cm radar polarimetry[J]. Icarus, 2006, 180(1):1-7.
[9]	FA W, WIECZOREK M A. Regolith thickness over the lunar nearside:results from Earth-based 70 cm Arecibo radar observations[J]. Icarus, 2012, 218(2):771-787.
[10]	LIU L, ZHOU Z B, ZHOU F, et al. A new 3-D geometry reconstruction method of space target utilizing the scatterer energy accumulation of ISAR image sequence[J]. IEEE Transactions on Geoscience and Remote Sensing, 2020, 58(12):8345-8357.
[11]	CAMPBELL B A. Focused 70-cm wavelength radar mapping of the Moon[J]. IEEE transactions on Geoscience and remote sensing, 2007, 45(12):4032-4042.
[12]	SUN J, PING J S, BONDARENKO Y, et al. Promoting earth-based radar astronomical observations of the moon[J]. Sensors, 2020, 20(7):1874.
[13]	DING Z H, WU J, XUZ W, et al. The Qujing incoherent scatter radar:system description and preliminary measurements[J]. Earth, Planets and Space, 2018, 70(1):70-87.
[14]	HAGFORS T. Remote probing of the moon by infrared and microwave emissions and by radar[J]. Radio Science, 1970, 5(2):189-227.

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