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Volume 31 Issue 10
Dec.  2010
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Qi Wei-kong, Dang Ya-wen, Yu Wei-dong. Deblurring Velocity Ambiguity of Distributed Space-Borne SAR Based on Chinese Remainder Theorem[J]. Journal of Electronics & Information Technology, 2009, 31(10): 2493-2497. doi: 10.3724/SP.J.1146.2008.01445
Citation: Qi Wei-kong, Dang Ya-wen, Yu Wei-dong. Deblurring Velocity Ambiguity of Distributed Space-Borne SAR Based on Chinese Remainder Theorem[J]. Journal of Electronics & Information Technology, 2009, 31(10): 2493-2497. doi: 10.3724/SP.J.1146.2008.01445

Deblurring Velocity Ambiguity of Distributed Space-Borne SAR Based on Chinese Remainder Theorem

doi: 10.3724/SP.J.1146.2008.01445
  • Received Date: 2008-11-03
  • Rev Recd Date: 2009-03-16
  • Publish Date: 2009-10-19
  • When distributed Space-borne SAR measures the ground moving target velocity using along track interferometry, larger baseline leads to serious velocity ambiguity. On the basis of exploring robust Chinese remainder theorem, this paper analyzes the method of deblurring velocity ambiguity for multi-baseline and multi-frequency distributed Space-borne SAR, which uses the principle that remainder theorem determines the unique resolution on some conditions. Moreover, the constraints of multi-baseline and multi-frequency, and the maximum measurement velocity value are derived. The simulation results show that the algorithm is efficient for deblurring velocity ambiguity, play a guiding role and provides reference for system design and baseline design of distributed Space-borne SAR.
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