| 地球同步轨道寄生SAR系统的若干关键技术研究 |
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| 引用本文： | 寇蕾蕾,王小青,种劲松,向茂生,朱敏慧.地球同步轨道寄生SAR系统的若干关键技术研究[J].电子学报,2009,37(12):2725-2729. |
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| 作者姓名： | 寇蕾蕾 王小青 种劲松 向茂生 朱敏慧 |
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| 作者单位： | 1. 中国科学院电子学研究所微波成像技术国家级重点实验室,北京,100190;中国科学院研究生院,北京,100190
2. 中国科学院电子学研究所微波成像技术国家级重点实验室,北京,100190 |
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| 摘 要： | 地球同步轨道寄生SAR系统是利用地球同步轨道卫星传输的通信、导航等信号作为非合作照射源的一种双基地雷达系统,具有长时间观测目标区域、抗电子干扰、成本低等优势,有良好的发展前景.本文针对地球同步轨道寄生SAR系统发射源信号为连续随机信号且卫星航迹精确位置未知的特点,分析了脉冲重复周期和信号加窗长度的选取,研究了信号加窗后的满带宽、距离向信杂比问题以及卫星航迹的精确反演.最后,根据上述关键技术的研究分析,仿真实现了地球同步轨道寄生SAR系统成像.
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| 关 键 词： | 地球同步轨道卫星 寄生SAR系统 信号加窗长度 信杂比 卫星航迹 |
Research of Key Technologies in Geosynchronous Parasitic SAR System |
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| KOU Lei-lei,WANG Xiao-qing,CHONG Jin-song,XIANG Mao-sheng,ZHU Min-hui.Research of Key Technologies in Geosynchronous Parasitic SAR System[J].Acta Electronica Sinica,2009,37(12):2725-2729. |
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| Authors: | KOU Lei-lei WANG Xiao-qing CHONG Jin-song XIANG Mao-sheng ZHU Min-hui |
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| Affiliation: | KOU Lei-lei1,2,WANG Xiao-qing1,CHONG Jin-song1,XIANG Mao-sheng1,ZHU Min-hui1(1.National Key Laboratory of Microwave Imaging Technology,Institute of Electronics,Beijing 100190,China,2.Graduate University of Chinese Academy of Sciences,China) |
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| Abstract: | Geosynchronous parasitic SAR system is a kind of bistatic system,which uses a fixed ground-based receiver and a geosynchronous satellite as non-cooperative illuminator transmitting waves like television,FM broadcast or navigation signals.The development of the system will be bright due to its military stealth,long-time supervising and economic advantages.The system has the characteristics of continuous random signal as transmitting signal and the precise positions of the radar unknown,based on which several... |
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| Keywords: | geosynchronous sateUite parasitic SAR system window length Signal to Clutter Ratios (SCR) retrieval of thesatellite' s daily orbit |
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