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用SAR原始数据对雷达脉冲信号失真的校正

黄立胜 王贞松 徐永建

黄立胜, 王贞松, 徐永建. 用SAR原始数据对雷达脉冲信号失真的校正[J]. 电子与信息学报, 2002, 24(11): 1641-1647.
引用本文: 黄立胜, 王贞松, 徐永建. 用SAR原始数据对雷达脉冲信号失真的校正[J]. 电子与信息学报, 2002, 24(11): 1641-1647.
Huang Lisheng, Wang Zhensong, Xu Yongjian. The correction of chirp radar signals based on SAR raw data[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1641-1647.
Citation: Huang Lisheng, Wang Zhensong, Xu Yongjian. The correction of chirp radar signals based on SAR raw data[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1641-1647.

用SAR原始数据对雷达脉冲信号失真的校正

The correction of chirp radar signals based on SAR raw data

  • 摘要: 该文提出了一种对雷达发射脉冲进行相位估计的算法。该算法利用Chirp Scaling原理对SAR信号进行距离迁移校正,但仅在方位向波束锐化,然后利用自聚焦的方法(Map Drift,PGA),在距离向进行自聚焦处理,提取距离向的相位误差信息。文中分析了影响相位估计精度的各种因素,并在算法中加入了迭代补偿方法,仿真结果验证了算法的正确性。
  • D.A. Ausherman, A. Kozma, J. L. Walker, H. M. Jones, E. C. Poggio, Developments in radar imaging, IEEE Trans. on Aerospace and Electronic Systems, 1984, 20(4), 363-400.[2]P.H. Eichel, D. C. Ghiglia, C. V. Jakowatz, Jr., Speckle processing method for synthetic-aperture-radar phase, Optics Letters, 1989, 14(1), 1-3.[3]P.H. Eichel, C. V. Jakowatz, Phase-gradient algorithm as optimal estimator of phase drivative,Optics Letters, 1989, 14(20), 1101-1103.[4]C.V. Jakowatz, Jr., D. E. Wahl, Eigenvector method for maximum-likehood estimation of phase errors in synthetic-aperture-radar imagery, Optical Society of America, 1993, 10(12), 2539-2545.[5]D.E. Wahl, P. H. Eichel, D. C. Ghiglia, C. V. Jakowatz, Phase gradient autofocus-A robust tool for high resolution SAR phase correction, IEEE Trans. on Aerospace and Electronic Systems,1994, 30(3), 827-834.[6]Terry M. Calloway, Gregory W. Donohoe, Subaperture autofocus for synthetic aperture radar,IEEE Trans. on Aerospace and Electronic Systems, 1994, 30(2), 617-621.[7]R. Keith Raney, H. Runge, Richard Bamler, Ian G. Cumming, Frank H. Wong, Precision SAR processing using chirp scaling, IEEE Trans. on Geoscience and Remote Sensing, 1994, 32(4),786-799.[8]G.W. Davidson, I. G. Cumming, M. R. Ito, A chirp scaling approach processing squint mode SAR data, IEEE Trans. on Aerospace and Electronic Systems, 1996, 32(1), 121-133.
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出版历程
  • 收稿日期:  2001-04-13
  • 修回日期:  2001-07-18
  • 刊出日期:  2002-11-19

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