Volume 2 Issue 2
Jun.  2013
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Chen Gong-bo, Li Yong, Tao Man-yi. Data Based Parameter Estimation Method for Circular-scanning SAR Imaging[J]. Journal of Radars, 2013, 2(2): 203-209. doi: 10.3724/SP.J.1300.2013.20073
Citation: Chen Gong-bo, Li Yong, Tao Man-yi. Data Based Parameter Estimation Method for Circular-scanning SAR Imaging[J]. Journal of Radars, 2013, 2(2): 203-209. doi: 10.3724/SP.J.1300.2013.20073

Data Based Parameter Estimation Method for Circular-scanning SAR Imaging

DOI: 10.3724/SP.J.1300.2013.20073
  • Received Date: 2012-10-08
  • Rev Recd Date: 2013-05-21
  • Publish Date: 2013-04-28
  • The circular-scanning Synthetic Aperture Radar (SAR) is a novel working mode and its image quality is closely related to the accuracy of the imaging parameters, especially considering the inaccuracy of the real speed of the motion. According to the characteristics of the circular-scanning mode, a new data based method for estimating the velocities of the radar platform and the scanning-angle of the radar antenna is proposed in this paper. By referring to the basic conception of the Doppler navigation technique, the mathematic model and formulations for the parameter estimation are firstly improved. The optimal parameter approximation based on the least square criterion is then realized in solving those equations derived from the data processing. The simulation results verified the validity of the proposed scheme.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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