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Volume 38 Issue 10
Oct.  2016
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Clutter Cancellation for Airborne Passive Radar Based on RDNLMS[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2488-2494. doi: 10.11999/JEIT151310
Citation: Clutter Cancellation for Airborne Passive Radar Based on RDNLMS[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2488-2494. doi: 10.11999/JEIT151310

Clutter Cancellation for Airborne Passive Radar Based on RDNLMS

doi: 10.11999/JEIT151310
  • Received Date: 2015-11-25
  • Rev Recd Date: 2016-06-20
  • Publish Date: 2016-10-19
  • RDNLMS algorithm is used to cancel Doppler-spreading direct signal and strong echo of airborne passive radar. The transfer function of RDNLMS filter is deduced, based on which a method of non-uniform Doppler extraction is developed to decrease the computing load while minimizing performance loss. With this method, the Doppler of strong echo will be surely extracted hence strong echo will be cancelled efficiently. In addition, the interval of extracted Doppler will not be too large to offer proper suppression for weak echo. Simulations show that when the order of RDNLMS filter is fixed, the performance of non-uniform Doppler extraction will be 2.4 dB better than the uniform one.
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