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A novel vertical element-pulse coding scheme for range-ambiguous clutter elimination
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DOI：10.1016/j.sigpro.2023.109287.png)
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摘要
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The coexistence of clutter range ambiguity and range dependence in the airborne forward-looking radar may render the common space-time adaptive processing (STAP) ineffective. To cope with this challenge, a novel vertical element-pulse coding (EPC) radar is proposed in our paper. Note that both the elevation angles and coding factors determine the transmitted spatial frequency of the proposed vertical EPC radar. Therefore, the clutters corresponding to different ambiguous areas can be distinguished in the spatial frequency dimension based on this property. The element-pulse decoding and pre-STAP filtering are devised to separate and extract these clutters corresponding to different ambiguous areas. In the following, the clutter elimination is independently accomplished for each ambiguous area that has been separated. Consequently, the clutter range ambiguity as well as clutter range dependence are addressed simultaneously. The efficacy of the proposed approach is verified with simulation experiments.
Keyword:
Element-pulse coding (EPC)
Pre-STAP filtering
Moving target detection
Range-ambiguous clutter
Clutter range dependence
期刊
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3.6
论文数:
10.0K
被引数:
1.7W
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