Abstract
The performance of space time adaptive processing (STAP) is greatly affected in nonhomogeneous clutter environments. In this paper, the effect of nonhomogeneous clutter on STAP is analysed, then a nonhomogeneous clutter suppression scheme is proposed. In this scheme, First, the power nonhomogeneous phenomenon is restrained by means of secondary sample weighting method. Second, the effects of interference target and discrete interference on STAP are eliminated by interference point substitution method. Finally, the conventional STAP algorithms are used to detect target. The computation simulation results prove the effectiveness of the proposed scheme.
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