期刊文献+

分布式卫星SAR面目标径向速度估计方法 被引量:3

Radial velocity estimation for the extended moving target with distributed space-borne SAR
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摘要 研究了分布式卫星合成孔径雷达(SAR)存在混合基线下的低信杂比面目标径向速度估计问题.在SAR图像域自适应补偿场景高程干涉相位基础上,对面目标分布区域数据,利用修正的信号拟合方法估计目标径向速度.能有效避免低信杂比情况下传统自适应匹配滤波方法参数估计精度下降问题.仿真结果表明,该方法具有良好的径向速度估计性能. This paper describes a new radial velocity estimation method for the extended moving target of low signal-to-clutter ratio with the distributed space-borne SAR system.By velocity searching for one fitting best to the under-test signal,a fine estimation of target radial velocity can be achieved.The estimation performance would not be sacrificed in order to suppress clutter and/or interference and the high resolution radial velocity estimation can be achieved.A preliminary result against space-borne simulation data demonstrates the effectiveness of the proposed method.
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2011年第4期129-132,142,共5页 Journal of Xidian University
基金 国家自然科学基金资助项目(60901066) 博士点基金资助项目(20090203120006) 中央高校基本科研业务费专项资金资助项目
关键词 分布式卫星合成孔径雷达 地面运动目标检测 面目标 自适应匹配滤波 distributed space-borne SAR ground moving target indication extended target adaptive match filtering
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参考文献13

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共引文献9

同被引文献48

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