Volume 2 Issue 1
Apr.  2013
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Liu Yong-cai, Wang Wei, Pan Xiao-yi, Dai Da-hai. Effective Region of Active Decoy Jamming to SAR Based on Time-delay Doppler-shift Method[J]. Journal of Radars, 2013, 2(1): 46-53. doi: 10.3724/SP.J.1300.2012.13001
Citation: Liu Yong-cai, Wang Wei, Pan Xiao-yi, Dai Da-hai. Effective Region of Active Decoy Jamming to SAR Based on Time-delay Doppler-shift Method[J]. Journal of Radars, 2013, 2(1): 46-53. doi: 10.3724/SP.J.1300.2012.13001

Effective Region of Active Decoy Jamming to SAR Based on Time-delay Doppler-shift Method

doi: 10.3724/SP.J.1300.2012.13001
  • Received Date: 2013-01-04
  • Rev Recd Date: 2013-03-04
  • Publish Date: 2013-02-28
  • The active decoy jamming to SAR based on the Time-Delay Doppler-Shift (TDDS) method is effective in certain regions. Proper utilization of jamming to ensure good decoy quality requires a study of the effective region. After the mathematical analysis of the difference between the jamming signal and a real point-target echo, the paper points out that residual Range Cell Migration (RCM), matched filter error, and loss of Doppler bandwidth are three main factors that lead to a deterioration of the focus of a jamming signal. The formulation of the effective regions is obtained and verified by simulation results. The study indicates that the TDDS method can effectively protect limited regions around the jammer.

     

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