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      SAR Imaging of Ground Moving Targets with Non-ideal Motion Error Compensation(in English)

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          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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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 June 2015
          : 4
          : 3
          : 265-275
          Affiliations
          [1 ] Space Microwave Remote Sensing System Department, Institute of Electronics, Chinese Academy of Sciences
          [2 ] China Academy of Launch Vehicle Technology
          Article
          bbef2b1401ae441baa235d201d0d947e
          10.12000/JR15024

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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