›› 2011, Vol. 31 ›› Issue (2): 58-63.doi: 10.3780/j.issn.1000-758X.2011.02.010

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Error Analysis and Moving Target Position for Spaceborne SAR-DPCA with Three-channel

 XIA  Meng1, YANG  Xiao-Niu2   

  1. (1 School of Communication Engineering, Xidian University, Xi′an 710071)(2 National Key Laboratory of Information Control Technology for Communication System,Jiaxing 314003)
  • Received:2010-09-14 Revised:2010-12-06 Online:2011-04-25 Published:2011-04-25

Abstract: For residual clutter caused by system errors and motion errors in spaceborne SAR-GMTI with three channel when using displaced phase center antenna(DPCA) technology to suppress clutter, a novel method of detection and position for moving target was presented based on error compensation. Aiming at elimination of residual clutter, errors were analyzed in detail and corresponding compensation functions were derived. After compensation, DPCA and interferometric processing were applied to cultter suppression and moving target position.

Key words: Synthetic-apterture radar, Diplaced phase center antenna, Error analysis, Clutter suppression, Spacecraft