Volume 4 Issue 3
Jul.  2015
Turn off MathJax
Article Contents
Article Navigation >  Journal of Radars  > 2015  >  4(3): 276-286
Hong Jun, Lei Da-li, Wang Yu, Fei Chun-jiao. Wide Band and Wide Azimuth Beam Effect on High-resolution Synthetic Aperture Radar Radiometric Calibration[J]. Journal of Radars, 2015, 4(3): 276-286. doi: 10.12000/JR15015
Citation: Hong Jun, Lei Da-li, Wang Yu, Fei Chun-jiao. Wide Band and Wide Azimuth Beam Effect on High-resolution Synthetic Aperture Radar Radiometric Calibration[J]. Journal of Radars, 2015, 4(3): 276-286. doi: 10.12000/JR15015
shu

Wide Band and Wide Azimuth Beam Effect on High-resolution Synthetic Aperture Radar Radiometric Calibration

doi: 10.12000/JR15015
  • 1.

    (National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

  • 2.

    (University of Chinese Academy of Sciences, Beijing 100190, China)

  • Received Date: 2015-01-26
  • Rev Recd Date: 2015-04-30
  • Publish Date: 2015-06-28
    Abstract
  • Passive corner reflectors and active transponders are often used as man-made reference targets in Synthetic Aperture Radar (SAR) radiometric calibration, With the emergence of new radar systems and the increasing demand for greater accuracy, wide-band and wide-beam radars challenge the hypothesis that the Radar Cross Section (RCS) of reference targets is constant. In this study, the FEKO electromagnetic simulation software is used to obtain the change curve of the target RCS as a function of frequency and aspect angle while incorporating high-resolution point-target SAR simulation, and quantitatively analyzing the effect of the modulation effect on SAR images. The simulation results suggest that the abovementioned factors affect the SAR calibration by more than 0.2 dB within a fractional bandwidth greater than 10% or azimuth beam width of more than 20, which must be corrected in the data processing.

     

    • FullText(HTML)
  • loading
    • References(15)
  • [1]
    Curlander J C. 合成孔径雷达系统与信号处理[M]. 北京: 电 子工业出版社, 2006: 217-220. Curlander J C. Synthetic Aperture Radar: Systems and Signal Processing[M]. Beijing: Publishing House of Electronics Industry, 2006: 217-220.
    [2]
    李震, 廖静娟, 等. 合成孔径雷达地表参数反演模型与方法[M]. 北京: 科学出版社, 2011: 24-33. Li Zhen, Liao Jing-juan, et al.. Synthetic Aperture Radar Surface Parameters Inversion Model and Method[M]. Beijing: Publishing House of Science, 2011: 24-33.
    [3]
    Khalid E D, Peter M, Desmond P, et al.. Understanding the significance of radiometric calibration for SAR imagery[C]. Canadian Conference on Electrical and Computer Engineering, Toronto, Canada, 2014: 1-6.
    [4]
    Freeman A. SAR calibration: an overview[J]. IEEE Transactions on Geoscience and Remote Sensing, 1992, 30(6): 1107-1123.
    [5]
    Gray A L, Paris W V, and Charles E L. Synthetic aperture radar calibration using reference reflectors[J]. IEEE Transactions on Geoscience and Remote Sensing, 1990, 28(3): 374-382.
    [6]
    Ulander L M H. Accuracy of using point targets for SAR calibration[J]. IEEE Transactions on Aerospace and Electronic Systems, 1991, 27(1): 139-148.
    [7]
    邹鲲. 低频UWB-SAR校准技术研究[D]. [博士论文], 国防科学 技术大学, 2005. Zou Kun. Research on low frequency UWB-SAR calibration technique[D]. [Ph.D. dissertation], National University of Defense Technology, 2005.
    [8]
    林新越. 高 分辨率SAR参考点目标辐射特性分析与校正方法 研究[D]. [硕士论文], 中国科学院电子学研究所, 2010. Lin Xin-yue. Analysis and calibration method for radiometric characteristics of reference targets in high resolution SAR systems[D]. [Master dissertation], Institute of Electronics, Chinese Academy of Sciences, 2010.
    [9]
    Bjorn J D, Philipp R L, Matthias J, et al.. Reference target correction based on point-target SAR simulation[J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(3): 951-958.
    [10]
    Bjorn J D and Marco S. The radiometric measurement quantity for SAR images[J]. IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(12): 5307-5313.
    [11]
    黄培康, 殷红成, 许小剑. 雷达目标特性[M]. 北京: 电子工业出 版社, 2010: 16-19. Huang Pei-kang, Yin Hong-cheng, and Xu Xiao-jian. Radar Target Characteristics[M]. Beijing: Publishing House of Electronics Industry, 2010: 16-19.
    [12]
    Griesser T and Balanis A. Backscatter analysis of dihedral corner reflectors using physical optics and the physical theory of diffraction[J]. IEEE Transactions on Antennas and Propagation, 1987, 35(10): 1137-1147.
    [13]
    Sarabandi K and Chiu T. Optimum corner reflectors for calibration of imaging radars[J]. IEEE Transactions on Antennas and Propagation, 1996, 44(10): 1348-1361.
    [14]
    林新越, 洪峻, 明峰. 高分辨率SAR参考点目标频带调制效应 的校正方法[J]. 国外电子测量技术, 2010, 29(4): 32-36. Lin Xin-yue, Hong Jun, and Ming Feng. A calibration method for frequency modulation of reference targets in high resolution SAR systems[J]. Foreign Electronic Measurement Technology, 2010, 29(4): 32-36.
    [15]
    Cumming I G and Wong F H. 合成孔径雷达成像算法与 实现[M]. 北京: 电子工业出版社, 2007: 38-41. Cumming I G and Wong F H. Digital Processing of Synthetic Aperture Radar Data: Algorithms and Implementation[M]. Beijing: Publishing House of Electronics Industry, 2007: 38-41.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML
    Article views(2054) PDF downloads(1119) Cited by()
    Proportional views
    Related

    京ICP备20021838号-8   Supported by: Beijing Renhe Information Technology Co. Ltd     百度统计

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return