留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

复杂背景下目标散射信号测量与提取技术

梁丽雅 原赛赛 许小剑

梁丽雅, 原赛赛, 许小剑等 . 复杂背景下目标散射信号测量与提取技术[J]. 北京航空航天大学学报, 2018, 44(10): 2232-2237. doi: 10.13700/j.bh.1001-5965.2018.0020
引用本文: 梁丽雅, 原赛赛, 许小剑等 . 复杂背景下目标散射信号测量与提取技术[J]. 北京航空航天大学学报, 2018, 44(10): 2232-2237. doi: 10.13700/j.bh.1001-5965.2018.0020
LIANG Liya, YUAN Saisai, XU Xiaojianet al. Measurement and extraction technique of scattered signals for targets under complex background[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(10): 2232-2237. doi: 10.13700/j.bh.1001-5965.2018.0020(in Chinese)
Citation: LIANG Liya, YUAN Saisai, XU Xiaojianet al. Measurement and extraction technique of scattered signals for targets under complex background[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(10): 2232-2237. doi: 10.13700/j.bh.1001-5965.2018.0020(in Chinese)

复杂背景下目标散射信号测量与提取技术

doi: 10.13700/j.bh.1001-5965.2018.0020
基金项目: 

国家自然科学基金 61371005

详细信息
    作者简介:

    梁丽雅  女, 硕士研究生。主要研究方向:信号与信息处理

    原赛赛  女, 硕士研究生。主要研究方向:雷达信号处理

    许小剑  男, 博士, 教授, 博士生导师。主要研究方向:遥感特征建模、雷达成像与目标识别等

    通讯作者:

    许小剑, E-mail:xiaojianxu@buaa.edu.cn

  • 中图分类号: TN95

Measurement and extraction technique of scattered signals for targets under complex background

Funds: 

National Natural Science Foundation of China 61371005

More Information
  • 摘要:

    在复杂环境条件下的宽带雷达目标散射特性测量中,场地周围环境产生的零多普勒杂波(ZDC)会严重影响目标测量数据的准确性。为了有效地抑制背景杂波、提高目标散射信号的测量精度,提出了一种基于最大概率提取技术。该技术首先通过方位滑窗平均得到每个频点的初始固定背景杂波估计,然后对每个频点的杂波初始估计进行统计直方图处理得到最大概率幅度统计量,并依据该统计量完成门限处理得到最终的杂波估计值,从而消除方位滑窗平均处理中的剩余目标信号分量、实现精确的背景提取与抵消。对典型目标的外场测量数据处理结果验证了本文方法的有效性。

     

  • 图 1  基于最大概率的背景提取与相减流程图

    Figure 1.  Flowchart of background extraction and subtraction based on maximal probability

    图 2  GTRI成像测量几何关系和测试场景

    Figure 2.  GTRI imaging measurement geometry and test scene

    图 3  数据域结果对比

    Figure 3.  Comparison of results in data domain

    图 4  背景抵消前后RCS随方位角变化结果

    Figure 4.  RCS versus azimuth before and after background subtraction

    图 5  时域结果对比

    Figure 5.  Comparison of results in time domain

    图 6  采用不同处理技术背景抵消后的HRRP结果对比

    Figure 6.  Comparison of HRRP results of different processing techniques for background subtraction

    图 7  采用金属支架测量数据的HRRP结果对比

    Figure 7.  Comparison of HRRP results of measurement data by metal pylon

  • [1] https://www.sdms.afrl.af.mil.
    [2] 栾瑞雪, 许小剑.周期性凹口数据的雷达图像修复[J].信号处理, 2009, 25(3):493-496. doi: 10.3969/j.issn.1003-0530.2009.03.031

    LUAN R X, XU X J.ISAR image reconstruction from periodically gapped data[J]. Signal Processing, 2009, 25(3):493-496(in Chinese). doi: 10.3969/j.issn.1003-0530.2009.03.031
    [3] 栾瑞雪.高背景电平下转台ISAR成像数据处理技术研究[D].北京: 北京航空航天大学, 2008: 33-42.

    LUAN R X.ISAR imagery data processing for turntable objects in strong background clutters[D]. Beijing: Beihang University, 2008: 33-42(in Chinese).
    [4] SHOWMAN A, SANGSTON K, RICHARDS M.Correction of artifacts in turntable inverse synthetic aperture radar images[C]//Proceedings SPIE-3066, Radar Sensor Technology Ⅱ.Bellingham: SPIE, 1997: 40-51. doi: 10.1117/12.276108
    [5] SHOWMAN A, SANGSTON K, RICHARDS M.Comparison of two algorithms for correcting zero-Doppler clutter in turntable ISAR imagery[C]//IEEE Conference Record of the Thirty-Second Asilomar Conference on Signal, System and Computers.Piscataway, NJ: IEEE Press, 1998: 411-415. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=750896
    [6] LAHAIE I J, LEBARON E I, ROUSSI C J, et al.Processing techniques for the removal of target support contamination[C]//IEEE Antennas and Propagation Society International Symposium.Piscataway, NJ: IEEE Press, 1993: 488-491. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=385301
    [7] COMPUQUEST C M.Range domain filtering: Application to zero and high Doppler removal[C]//Proceedings of 35th Antenna Measurement Techniques Association Symposium, 2013.
    [8] FOWLER J D, TEMPLE M A, HAVRILLA M J, et al.Characterization of zero-Doppler clutter removal techniques for ISAR applications[C]//2007 IEEE Radar Conference.Piscataway, NJ: IEEE Press, 2007: 800-804.
    [9] 梁丽雅.目标一维高分辨距离像测量中的杂波滤除技术[D].北京: 中国农业大学, 2016: 4-23.

    LIANG L Y.Clutter removal technique in one-dimensional high resolution images of target measurement[D]. Beijing: China Agricultural University, 2016: 4-23(in Chinese).
    [10] LIANG L Y, XU X J.An improved procedure for ZDC reduction in high resolution imaging of rotating targets[C]//2016 IEEE 13th International Conference on Signal Proceedings.Piscataway, NJ: IEEE Press, 2016: 1467-1479. http://ieeexplore.ieee.org/document/7878071/
    [11] XU X J.A background and target signal separation techniques for exact RCS measurement[C]//Information Conference on Electromagnetics in Advanced Applications.Piscataway, NJ: IEEE Press, 2012: 891-894. http://ieeexplore.ieee.org/document/6328761/
    [12] XU X J.A new approach for background clutter extraction in radar cross section measurement[C]//2016 IEEE/ACES International Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics (ACES).2016: 1-2. http://ieeexplore.ieee.org/document/7465305/
    [13] 周萌清.随机过程理论[M]. 2版.北京:电子工业出版社, 2009:20-21.

    ZHOU M Q.Stochastic process theory[M]. 2nd ed.Beijing:Publishing House of Electronics Industry, 2009:20-21(in Chinese).
    [14] 许小剑.目标RCS测量中背景提取与抵消的最大概率数据域处理方法: 201610764900.2[P]. 2016-08-30.

    XU X J.Background extraction and subtraction method based on maximal probability for target RCS measurement in data domain: 201610764900.2[P]. 2016-08-30(in Chinese).
    [15] 许小剑, 黄培康.雷达系统及其信息处理[M].北京:电子工业出版社, 2010:222-225.

    XU X J, HUANG P K.Radar system and information process[M]. Beijing:Publishing House of Electronics Industry, 2010:222-225(in Chinese).
  • 加载中
图(7)
计量
  • 文章访问数:  364
  • HTML全文浏览量:  2
  • PDF下载量:  452
  • 被引次数: 0
出版历程
  • 收稿日期:  2018-01-11
  • 录用日期:  2018-05-18
  • 刊出日期:  2018-10-20

目录

    /

    返回文章
    返回
    常见问答