稀疏微波SAR图像特征分析与目标检测研究

张增辉 郁文贤

张增辉, 郁文贤. 稀疏微波SAR图像特征分析与目标检测研究[J]. 雷达学报, 2016, 5(1): 42-56. doi: 10.12000/JR15097
引用本文: 张增辉, 郁文贤. 稀疏微波SAR图像特征分析与目标检测研究[J]. 雷达学报, 2016, 5(1): 42-56. doi: 10.12000/JR15097
Zhang Zenghui, Yu Wenxian. Feature Understanding and Target Detection for Sparse Microwave Synthetic Aperture Radar Images[J]. Journal of Radars, 2016, 5(1): 42-56. doi: 10.12000/JR15097
Citation: Zhang Zenghui, Yu Wenxian. Feature Understanding and Target Detection for Sparse Microwave Synthetic Aperture Radar Images[J]. Journal of Radars, 2016, 5(1): 42-56. doi: 10.12000/JR15097

稀疏微波SAR图像特征分析与目标检测研究

doi: 10.12000/JR15097
基金项目: 

国家自然科学基金(61331015), 973课题(2010CB731904)

详细信息
    作者简介:

    张增辉(1980-),男,山东金乡人,博士,副研究员,分别于2001年、2003年和2008年获国防科技大学应用数学、计算数学和信息与通信工程专业学士、硕士和博士学位。2008年6月,任国防科大理学院数学与系统科学系讲师;2014年2月,任上海交通大学电子信息与电气工程学院副研究员。主要从事新体制雷达系统、雷达信号处理、压缩感知理论等方面的研究。E-mail:zenghui.zhang@sjtu.edu.cn郁文贤(1964-),男,上海松江人,博士,教授,博士生导师,上海交通大学讲席教授。中国第2代卫星导航系统重大专项测试评估与试验验证专家组专家,高分辨率对地观测系统重大专项专家委员会地面系统组专家,“十二五”总装备部卫星应用技术专业组顾问,总装备部上海市“北斗导航与位置服务”共建重点实验室主任,上海交通大学学术委员会委员,雷达信号处理国防科技重点实验室学术委员会委员,“十一五”国家863计划信息获取与处理技术主题第一、第二届专家组组长,“十一五”总装备部雷达探测技术专业组专家,主要研究方向为先进探测技术和多维信号与信息处理,研究内容包括新型成像系统、微波图像处理和解译、信息融合、目标识别等。E-mail:wxyu@sjtu.edu.cn

    通讯作者:

    郁文贤wxyu@sjtu.edu.cn

Feature Understanding and Target Detection for Sparse Microwave Synthetic Aperture Radar Images

Funds: 

The National Natural Science Foundation of China (61331015), The National Basic Research Program of China (2010CB731904)

  • 摘要: 稀疏微波成像利用观测场景在空时频极化等表示域上的稀疏先验,通过线性综合测量方式获得比传统Nyquist采样低得多的回波数据,使用优化重构算法恢复观测场景微波图像,相对于传统微波成像体制具有诸多优势。在稀疏微波成像体制下,图像的获取和表征均发生了变化,需要在雷达图像理解现有理论和方法的基础上,研究新的特征分析和认知解译理论与方法。该文分析了稀疏SAR图像的统计特性以及点、线、面等特征的变化情况,对于使用空域稀疏模型重构的SAR图像,统计分布退化,适当降低采样率不影响点、线目标的提取精度。在此基础之上,研究了稀疏SAR图像海上舰船目标检测方法,得益于较弱的背景噪声,稀疏SAR图像的目标检测使用简单的阈值处理即可获得较好的检测效果。

     

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出版历程
  • 收稿日期:  2015-08-15
  • 修回日期:  2015-10-19

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