APPROACH FOR SPATIAL AMBIGUITY SUPPRESSION IN A DISTRIBUTED SPACE-BASED EARLY WARNING RADAR SYSTEM

被引:0
|
作者
Chen, Jiangyuan [1 ]
Lin, Xin [2 ]
Huang, Penghui [1 ]
Li, Donglin [2 ]
Xi, Peili [2 ]
Chen, Guozhong [2 ]
Huo, Lihuan [3 ]
Liu, Xingzhao [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai, Peoples R China
[2] Shanghai Inst Satellite Engn, Shanghai 200240, Peoples R China
[3] CETC, Res Inst 54, Hebei Key Lab Electromagnet Spectrum Cognit & Con, Shijiazhuang, Hebei, Peoples R China
关键词
Distributed space-based early warning radar (DSBEWR); clutter suppression; aerial moving target indication (AMTI); spatial ambiguity elimination;
D O I
10.1109/IGARSS46834.2022.9883333
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Due to existence of the long along-track baseline (ATB) in a distributed space-based early warning radar (DSBEWR) system, a large number of grating lobes appears in both main-lobe and side-lobe clutter regions, causing the discontinuously detectable phenomenon of an aerial moving target (AMT). To solve this problem, in this paper, a novel spatial ambiguity suppression algorithm is proposed. In the proposed algorithm, based on the prior information provided by the system parameters and the signal processing results from the single satellite radar data, after performing the multi- channel clutter rejection, the spatial ambiguity can be eliminated via the joint processing of residual clutter signals corresponding to the single satellite and the muti-satellites. Simulated processing results are provided to validate the effectiveness of the proposed method.
引用
收藏
页码:2801 / 2804
页数:4
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