压缩感知在城区高分辨率SAR层析成像中的应用

廖明生 魏恋欢 汪紫芸 TimoBalz 张路

廖明生, 魏恋欢, 汪紫芸, TimoBalz, 张路. 压缩感知在城区高分辨率SAR层析成像中的应用[J]. 雷达学报, 2015, 4(2): 123-129. doi: 10.12000/JR15031
引用本文: 廖明生, 魏恋欢, 汪紫芸, TimoBalz, 张路. 压缩感知在城区高分辨率SAR层析成像中的应用[J]. 雷达学报, 2015, 4(2): 123-129. doi: 10.12000/JR15031
Liao Ming-sheng, Wei Lian-huan, Wang Zi-yun, Timo Balz, Zhang Lu. Compressive Sensing in High-resolution 3D SAR Tomography of Urban Scenarios[J]. Journal of Radars, 2015, 4(2): 123-129. doi: 10.12000/JR15031
Citation: Liao Ming-sheng, Wei Lian-huan, Wang Zi-yun, Timo Balz, Zhang Lu. Compressive Sensing in High-resolution 3D SAR Tomography of Urban Scenarios[J]. Journal of Radars, 2015, 4(2): 123-129. doi: 10.12000/JR15031

压缩感知在城区高分辨率SAR层析成像中的应用

DOI: 10.12000/JR15031
基金项目: 

国家自然科学基金(61331016, 41174120)和高等学校博士学科点专项科研基金(20110141110057)资助课题

详细信息
    作者简介:

    廖明生(1962–),男,武汉大学教授,博士生导师,珞珈杰出学者。主要从事航空航天遥感影像信息处理的理论与方法的研究。E-mail:liao@whu.edu.cn魏恋欢(1986–),女,武汉大学与慕尼黑工业大学联合培养博士研究生。主要从事合成孔径雷达干涉测量及层析成像研究。E-mail:lianhuan@whu.edu.cn汪紫芸(1988–),女,武汉大学博士研究生,主要研究方向为合成孔径雷达遥感。E-mail:ziyunwang@whu.edu.cn

    通讯作者:

    廖明生liao@whu.edu.cn

Compressive Sensing in High-resolution 3D SAR Tomography of Urban Scenarios

  • 摘要: 在建筑密集的城区复杂场景中,高分辨率SAR影像中存在严重的叠掩效应,影像解译的难度加大.SAR层析成像可以分离单个分辨单元内混叠的散射体目标,并且获取各个散射体的3维位置和后向散射强度.该文首先论述了3维SAR层析成像的基本原理,针对传统谱估计法获得的高程向分辨率较低的问题,综述了压缩感知方法在城区3维SAR层析成像中的应用,以基追踪和双步迭代收缩阈值法为例,开展了TerraSAR-X聚束模式数据实验,并与传统的奇异值阈值法进行了对比分析.研究结果表明压缩感知方法的高程向超分辨率、旁瓣抑制优势明显,在城区SAR层析成像中具有广阔的应用前景.

     

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出版历程
  • 收稿日期:  2015-03-11
  • 修回日期:  2015-04-09
  • 网络出版日期:  2015-04-28

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