Volume 4 Issue 3
Jul.  2015
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Article Navigation >  Journal of Radars  > 2015  >  4(3): 265-275
Zhou Hui, Zhao Feng-jun, Yu Wei-dong, Yang Jian. SAR Imaging of Ground Moving Targets with Non-ideal Motion Error Compensation(in English)[J]. Journal of Radars, 2015, 4(3): 265-275. doi: 10.12000/JR15024
Citation: Zhou Hui, Zhao Feng-jun, Yu Wei-dong, Yang Jian. SAR Imaging of Ground Moving Targets with Non-ideal Motion Error Compensation(in English)[J]. Journal of Radars, 2015, 4(3): 265-275. doi: 10.12000/JR15024
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SAR Imaging of Ground Moving Targets with Non-ideal Motion Error Compensation(in English)

DOI: 10.12000/JR15024 CSTR: 32380.14.JR15024
  • 1.

    (Space Microwave Remote Sensing System Department, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

  • 2.

    (University of Chinese Academy of Sciences, Beijing 100049, China)

  • 3.

    (China Academy of Launch Vehicle Technology, Beijing 100076, China)

Funds:

Supported by the National Ministries Foundation.

  • Received Date: 2015-02-11
  • Rev Recd Date: 2015-04-16
  • Publish Date: 2015-06-28
    Abstract

  • Conventional ground moving target imaging algorithms mainly focus on the range cell migration correction and the motion parameter estimation of the moving target. However, in real Synthetic Aperture Radar (SAR) data processing, non-ideal motion error compensation is also a critical process, which focuses and has serious impacts on the imaging quality of moving targets. Non-ideal motion error can not be compensated by either the stationary SAR motion error compensation algorithms or the autofocus techniques. In this paper, two sorts of non-ideal motion errors that affect the Doppler centroid of the moving target is analyzed, and a novel non-ideal motion error compensation algorithm is proposed based on the Inertial Navigation System (INS) data and the range walk trajectory. Simulated and real data processing results are provided to demonstrate the effectiveness of the proposed algorithm.

     

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