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强背景杂波下的地面运动目标干涉式三维成像 被引量：3

Three-Dimensional Interferometric Imaging of a Moving Ground Target in Strong Background Clutters
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摘要 基于逆合成孔径雷达(ISAR)成像与干涉式测角原理的结合,该文提出一种地面运动目标的干涉式雷达三维成像方法。利用获得的角运动参数对回波信号在原始数据域进行补偿,完成对应干涉天线上的复图像对准。按照目标散射中心点的空间位置,重构运动目标的三维图像。该文提出的基于线性调频信号拉伸处理的杂波剔除方法,在用干涉技术进行三维成像之前剔除强背景杂波,方法简单易于工程实现。仿真结果证明了该方法的有效性。 Based on the principles of ISAR and interferomctric observation, a three-dimensional （3D）imaging method of Interferometric ISAI：t （InISAR） is developed. Making use of compensation of the resultant angular motion parameters for the echoes in the raw data level, two complex images from interferometric antennas are, sequentially, co-registered. A 3D image of a moving target is reconstructed from the spatial coordinates of these scatter centers of the target. Also, a stretch processing of LFM signal to remove the background clutter is discussed This method is simple and easily implemented in engineering. Simulations show that this 3D imaging method works well even for a moving target in strong clutters.
作者 张群 金亚秋
机构地区 空军工程大学电讯工程学院 复旦大学波散射与遥感信息国家教育部重点实验室
出处 《电子与信息学报》 EI CSCD 北大核心 2007年第1期1-5,共5页 Journal of Electronics & Information Technology
基金 国家重点基础研究项目(2001CB309405) 国家自然科学基金项目(60672032)资助课题
关键词 合成孔径雷达(SAR) 运动参数估计 地面运动目标成像 地杂波 Synthetic Aperture Radar （SAR） Motion parameters estimation Ground moving target imaging Ground clutter
分类号 TN957.52 [电子电信—信号与信息处理]
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参考文献12

  • 1Wang G, Xia X, and Chen V C. Three-dimensional ISAR imaging of Maneuvering targets using three receivers. IEEE Trans. on Imaging Processing, 2001, 10(3): 436-447.
  • 2Zhang Q, Yeo T S, Du G, and Zhang S H. Estimation of three-dimensional motion parameters in interferometricISAR imaging. IEEE Trans, on Geosci. Remote Sensing 2004,42(2): 292-300.
  • 3Xu X and Narayanan R M. Three-dimensional interferometric ISAR imaging for target scattering diagnosis and modeling. IEEE Trans. on Image Processing, 2001, 10(7):1094-1102.
  • 4罗斌风 张群 张涛 张守宏.干涉式逆合成孔径雷达空间配置及其对三维像的影响[J].西安电子科技大学学报,2001,28:10-13.
  • 5Zhang Q and Yeo T S. Three-dimensional imaging of ground moving target using the InISAR technique. IEEE Trans. on Geosci. Remote Sensing, 2004, 42(9): 1818-1828.
  • 6Zhang Q, Li Y, Zhang T, and Zhang S H. Low-altitude target imaging in strong ground clutter. Proc. 2001 CIE International Conference on Radar, Beijing, China, Oct. 2001665-669.
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同被引文献75

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引证文献3

二级引证文献18

电子与信息学报
2007年 第1期

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