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      A Range-ambiguous Clutter Suppression Method for MIMO Bistatic Airborne Radar

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          Abstract

          The ground clutter of sidelooking Multiple-Input Multiple-Output (MIMO) bistatic radar has severe problems of range-dependence and clutter spectrum spreading. In this paper, the clutter characteristics of bistatic airborne radars are analyzed and a method of range-ambiguous clutter suppression is proposed. This method employs the range-dependent phase term in the traditional MIMO bistatic radar to provide extra degrees of freedom. The range information of the phase term enables clutter separation with different ranges and consequent suppression. Thus, a range-ambiguous clutter suppression for bistatic airborne early warning radars is achieved. The simulation results show the accuracy of the method. By a comparison with the existing Doppler Warping (DW) and clutter suppression method with the Improved Factor (IF) line, the results showed that the method has better performance, which proved the effectiveness of ambiguous clutter suppression in MIMO bistatic radars.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 April 2018
          : 7
          : 2
          : 202-211
          Affiliations
          [1 ] (National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China)
          Article
          f5945818984e425fa229c968f5b23e1f
          10.12000/JR18016

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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