Spatiotemporal Coverage of a Moon-Based Synthetic Aperture Radar: Theoretical Analyses and Numerical Simulations

Spatiotemporal Coverage of a Moon-Based Synthetic Aperture Radar: Theoretical Analyses and Numerical Simulations
复制标题

月基合成孔径雷达的时空覆盖:理论分析和数值模拟

DOI:
10.1109/tgrs.2020.2990433
复制
发表时间:
2020-12
影响因子:
8.2
通讯作者:
Guo Huadong
Guo Huadong
中科院分区:
工程技术1区
文献类型:
--
作者:
Xu Zhen;Chen Kun-Shan;Liu Guang;Guo Huadong

文献摘要

参考文献

相似文献

基于成像几何对月基合成孔径雷达(SAR)的时空覆盖度进行了分析,空间覆盖度和图像的形成依赖于成像几何。地球到月基SAR的距离以及掠角和方位角的边界共同决定了地球表面的覆盖面积。同时,月基SAR的地面覆盖度是由最低点在指定时间点的掠角和方位角的边界以及地理坐标决定的。此外,空间覆盖的时间变化与地球表面月基SAR最低点的时间变化有关。此外,利用月球星历数据进行了数值模拟,以补充分析并说明时空覆盖。最后,提出了月基SAR的最优选址准则。总之,基于月球的SAR有潜力在全球范围内进行长期、连续的地球观测,以增强我们了解地球的能力。
The spatiotemporal coverage of a Moon-based synthetic aperture radar (SAR) is analyzed based on the imaging geometry, upon which the spatial coverage and image formulation rely. The distance from the Earth to the Moon-based SAR and bounds of the grazing and azimuthal angles jointly determine the coverage area on the Earth’s surface. Meanwhile, the ground coverage of the Moon-based SAR is determined by the bounds of the grazing and azimuthal angles and geographic coordinates of the nadir point at a specified time. Moreover, the temporal variation in the spatial coverage is pertinent to the temporally varying nadir point of the Moon-based SAR on the Earth’s surface. Furthermore, numerical simulations using the lunar ephemeris data are carried out to complement the analysis and to illustrate the spatiotemporal coverage. Finally, a guideline for the optimal site selection of a Moon-based SAR is proposed. In conclusion, a Moon-based SAR has the potential to perform long-term, continuous Earth observations on a global scale to enhance our capability to understand the planet.
DOI: 10.11728/cjss2018.05.598
发表时间: 2018-09
影响因子: 1.7
作者:
Xu Lin;Zou Yongliao;Qin Lang
通讯作者: Xu Lin;Zou Yongliao;Qin Lang
月基平台地球表面特征的观测持续时间分析
DOI: 10.1016/j.asr.2018.04.029
发表时间: 2018-07
影响因子: 2.6
作者:
Hanlin Ye;Huadong Guo;Guang Liu;Yuanzhen Ren
通讯作者: Yuanzhen Ren
DOI: 10.1007/s11430-013-4714-2
发表时间: 2014-05
期刊: Science China Earth Sciences
影响因子: --
作者:
Huadong Guo;Yixing Ding;Guang Liu;Daowei Zhang;W. Fu;Lu Zhang
通讯作者: Huadong Guo;Yixing Ding;Guang Liu;Daowei Zhang;W. Fu;Lu Zhang
DOI: 10.1016/j.actaastro.2014.10.038
发表时间: 2015-02
期刊: Acta Astronautica
影响因子: 3.5
作者:
R. Malla;K. Brown
通讯作者: R. Malla;K. Brown
DOI: 10.1109/lgrs.2019.2941505
发表时间: 2020-07
影响因子: 4.8
作者:
Xu Zhen;Chen Kun-Shan;Zhou Guoqing
通讯作者: Zhou Guoqing