Journal of Systems Engineering and Electronics

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Clutter suppression for hypersonic vehicle-borne radar with frequency diverse array

Xuzi Wu, Zheng Liu*, and Rong Xie   

  1. National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
  • Online:2017-06-20 Published:2010-01-03


The seriously range-ambiguous clutter is one of the main problems in clutter suppression for hypersonic vehicle-borne forward-looking radar. An approach based on the frequency diverse array (FDA) technique is proposed to mitigate the rangeambiguous clutter. The frequency increment is designed to distinguish the clutter at ambiguous ranges and suppress the clutter by using a subspace projection algorithm. On the platform with high altitude or limited array antennas, the proposed method performs better for its independence of the elevation degrees-of-freedom (DOF). Finally, simulation results verify the effectiveness of the proposed method.

Key words: hypersonic vehicle, forward-looking array radar, clutter suppression, frequency diverse array