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基于分层介质模型的HF雷达高度计火星回波仿真研究

徐曦煜 刘和光 杨双宝

徐曦煜, 刘和光, 杨双宝. 基于分层介质模型的HF雷达高度计火星回波仿真研究[J]. 空间科学学报, 2015, 35(6): 746-754. doi: 10.11728/cjss2015.06.746
引用本文: 徐曦煜, 刘和光, 杨双宝. 基于分层介质模型的HF雷达高度计火星回波仿真研究[J]. 空间科学学报, 2015, 35(6): 746-754. doi: 10.11728/cjss2015.06.746
Xu Xiyu, Liu Heguang, Yang Shuangbao. Echo of HF-band Radar Altimeter from Mars Based on a Multi-layer Media Model[J]. Journal of Space Science, 2015, 35(6): 746-754. doi: 10.11728/cjss2015.06.746
Citation: Xu Xiyu, Liu Heguang, Yang Shuangbao. Echo of HF-band Radar Altimeter from Mars Based on a Multi-layer Media Model[J]. Journal of Space Science, 2015, 35(6): 746-754. doi: 10.11728/cjss2015.06.746

基于分层介质模型的HF雷达高度计火星回波仿真研究

doi: 10.11728/cjss2015.06.746
基金项目: 中国科学院国家空间科学中心重点培育基金项目资助(Y32114FB9S)
详细信息
    通讯作者:

    徐曦煜,E-mail:xuxiyu@mirslab.cn

  • 中图分类号: P353;V447

Echo of HF-band Radar Altimeter from Mars Based on a Multi-layer Media Model

  • 摘要: 火星次表层中的水探测是当前深空探测领域中的热门问题之一. 高频(HF)雷达高度计具有较强的穿透能力, 且能同时实现距离和功率测量, 是火星次表层探测的重要手段. 介绍了高频雷达高度计系统的原理和设计, 通过分析高度计电磁脉冲与多层光滑介质之间的相互作用, 得出其回波功 率随时间变化的模型, 并考虑了表面粗糙度对表面回波功率的影响. 选用典型的火星分层介质模型, 对其介电常数特性和高度计回波波形 进行了仿真. 仿真结果表明, 采用高频雷达高度计系统可实现对火星次表 层介电特性垂直廓线的反演, 对火星中水的识别具有重要 作用.

     

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出版历程
  • 收稿日期:  2014-08-11
  • 修回日期:  2015-06-30
  • 刊出日期:  2015-11-15

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