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Method of moving target detection based on sub-image cancellation for single-antenna airborne synthetic aperture radar 被引量:4

Method of moving target detection based on sub-image cancellation for single-antenna airborne synthetic aperture radar
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摘要 The method of moving target detection based on subimage cancellation for single-antenna airborne SAR is presented. First the subimage is obtained through frequency processing is pointed out. The imaging difference of a stationary objects and moving object in the subimage based on the frequency division is analyzed from the fundamental principle. Then the developed method combines the shear averaging algorithm to focus on the moving target in the subimage, after the clutter suppression and the focusing position in each subimage is obtained. Next the observation model and the relative movement of the moving targets between the subimages estimate the moving targets. The theoretical analysis and simulation results demonstrate that the method is effective and can not only detect the moving targets, but also estimate their motion parameters precisely. The method of moving target detection based on subimage cancellation for single-antenna airborne SAR is presented. First the subimage is obtained through frequency processing is pointed out. The imaging difference of a stationary objects and moving object in the subimage based on the frequency division is analyzed from the fundamental principle. Then the developed method combines the shear averaging algorithm to focus on the moving target in the subimage, after the clutter suppression and the focusing position in each subimage is obtained. Next the observation model and the relative movement of the moving targets between the subimages estimate the moving targets. The theoretical analysis and simulation results demonstrate that the method is effective and can not only detect the moving targets, but also estimate their motion parameters precisely.
出处 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2007年第3期448-453,共6页 系统工程与电子技术(英文版)
关键词 synthetic aperture radar moving target detection sub-image cancellation parameter estimation. synthetic aperture radar, moving target detection, sub-image cancellation, parameter estimation.
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参考文献6

  • 1Raney R K.Synthetic aperture imaging radar and moving targets.IEEE Trans.on Aerospace and Electronic Systems,1971,7(3):499-505.
  • 2Fienup J P.Detecting moving targets in SAR imagery by focusing.IEEE Trans.on Aerospace and Electronic Systerns 2001,37(3):794-809.
  • 3Kirscht M.Detection and velocity estimation of moving objects in a sequence of single-look SAR images.IGARSS'96 Geoscience and Remote Sensing Symposium 1996,1(27):333-335.
  • 4Ouchi K.On the multilook images of moving targets by synthetic aperture radars.IEEE Tran.on Antennas and Propagation,1988,33(8):823-827.
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