非正侧阵雷达距离模糊杂波抑制新方法

doi:10.3969/j.issn.1001-2400.2017.02.001

Abstract

Abstract:

To suppress the seriously range-ambiguous clutter, an approach based on the frequency diverse array (FDA) technique is proposed. Based on the space-time signal model in FDA radar, the frequency increment is designed to distinguish the clutter at ambiguous ranges and avoid signal decorrelation. Then, the subspace projection algorithm is used for range-ambiguous clutter suppression. Numerical simulations show the effectiveness of the proposed method. Even when the number of the elevation degrees-of-freedom (DOFs) is limited, the proposed method performs better than the conventional elevation filtering method.

Key words: airborne radar, clutter suppression, frequency diversity, range ambiguity

WU Xuzi;LIU Zheng;XIE Rong. New method for range-ambiguous clutter suppression in non-side-looking airborne radar[J].Journal of Xidian University, 2017, 44(2): 1-7.

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New method for range-ambiguous clutter suppression in non-side-looking airborne radar

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