Systems Engineering and Electronics ›› 2018, Vol. 40 ›› Issue (5): 1004-1011.doi: 10.3969/j.issn.1001-506X.2018.05.07

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Coordinated large-area shading jamming method to SAR-GMTI combining active and passive jamming

ZHOU Yang, BI Daping, SHEN Aiguo   

  1. College of Electronic Countermeasures, National University of Defense Technology, Hefei 230037, China
  • Online:2018-04-28 Published:2018-04-24

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Abstract:

In view of the inflexibility of passive jamming and lack of robustness of active jamming against synthetic aperture radar(SAR)-ground moving target indication(GMTI), a coordinated jamming method is proposed to combine active jamming and passive jamming to elicit better jamming effect. With passive jamming as the principal part of this jamming method and active jamming as a complement to passive jamming, passive jamming can be realized via L-shaped rotating angular reflectors while active jamming can be realized via motion modulated-intermittent sampling compound jamming. Since coordinated work of active jamming complements the failure part of the passive jamming, a large area shading effect to SAR-GMTI is achieved. This thesis further constructs the jamming model and analyzes the effectiveness of the jamming method proposed. In the meantime, the parameter setting scheme is proposed. Simulation results verify the correctness of the method to SAR and SAR-GMTI.

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