基于微多普勒信息的弹道目标成像

发布时间：2018-03-13 13:58

  本文选题：弹道目标成像　切入点：滑动散射中心模型　出处：《雷达科学与技术》2017年05期 　论文类型：期刊论文

【摘要】：弹道导弹识别是弹道防御系统中的核心问题之一,直接关系到导弹防御系统的成败。如果能对弹道目标成像,则能获得关于目标结构更为丰富的信息。由于弹道目标具有高速自旋的特点,因此基于转台模型的逆合成孔径雷达成像技术对高速自旋目标成像是失效的。针对该问题,详细分析了弹道目标回波模型,并研究了弹道目标时频图的调制规律,在此基础上,提出一种基于微多普勒信息的弹道目标成像方法,实现了对弹道目标二维强散射中心的重构,仿真数据处理结果证明了所提方法的有效性。
[Abstract]:Ballistic missile identification is one of the core problems in ballistic defense system, which is directly related to the success or failure of missile defense system. Because the ballistic target has the characteristics of high speed spin, the inverse synthetic Aperture Radar imaging technology based on the turntable model is ineffective for the imaging of the high speed spin target. The echo model of ballistic target is analyzed in detail, and the modulation law of time-frequency diagram of ballistic target is studied. On this basis, a new imaging method of ballistic target based on micro-Doppler information is proposed. The reconstruction of two-dimensional strong scattering center of ballistic target is realized, and the validity of the proposed method is proved by the simulation data processing.
【作者单位】： 中国电子科技集团公司第三十八研究所;孔径阵列与空间探测安徽省重点实验室;智能情报处理重点实验室;
【分类号】：TJ761.3;TN957.52
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本文编号：1606679