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中国科学院大学学报 ›› 2010, Vol. 27 ›› Issue (6): 800-808.DOI: 10.7523/j.issn.2095-6134.2010.6.011

• 论文 • 上一篇    下一篇

基于俯仰角压缩的阵列天线合成孔径雷达三维成像算法

杜磊1,2, 王彦平1, 洪文1, 吴一戎1   

  1. 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;
    2. 中国科学院研究生院, 北京 100049
  • 收稿日期:2010-03-08 发布日期:2010-11-15
  • 基金资助:

    国家杰出青年科学基金(60725103)、国家"863"计划(2007AA12Z116)资助 

Three-dimensional imaging algorithm for synthetic aperture radar with linear array antennas based on elevation angle compression principle

DU Lei1,2, WANG Yan-Ping1, HONG Wen1, WU Yi-Rong1   

  1. 1. National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
    2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-03-08 Published:2010-11-15

摘要:

从阵列天线合成孔径雷达(SAR)的信号模型出发,提出了一种基于俯仰角压缩的阵列天线SAR三维成像算法,解决了阵列天线SAR中存在的距离单元徙动项的校正问题,从俯仰角压缩的角度分析了阵列天线SAR的三维成像原理.通过计算机仿真验证了信号模型和三维成像算法的有效性.

关键词: 合成孔径雷达, 距离单元徙动, 三维成像, 阵列天线, 俯仰角压缩

Abstract:

Based on the signal model of SAR with linear array antennas, a three-dimensional imaging algorithm using elevation angle compression principle is proposed. Range cell migration correction (RCMC) is incorporated in the three-dimensional imaging algorithm. The three-dimensional imaging principle of SAR with linear array antennas is analyzed from the point of view of elevation angle compression principle. The simulation results support the signal model and three-dimensional imaging algorithm.

Key words: synthetic aperture radar (SAR), range cell migration (RCM), three-dimensional imaging, linear array antennas, elevation angle compression

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