Research On Deception Jamming Methods Against Bi/Multi-static Radar

In recent years,due to the ECM environment become more complex,bi/multi-static radar to get people's attention again.The excellent "four anti-" characteristics of the,can effectively reduce the interference effect of traditional jamming method which aimed at radar transmitting station.At present,the bi/multi-static radar weapon systems has been developed abroad countries,and applied in actual combat.Faced with the severe increasingly battlefield environment,how to realize efficient jam the bi/multi-static radar has becoming hot in research.Based on this background,the bi/multi-static radar,the simulation model is built,and the two jamming patterns,preceded false target jamming and cross-polarization jamming,are studied in this article.1.Modeling and Simulation Analysis of Bi/Multi-static Radar System.The basic work principle of bi/multi-static radar is deeply analysed,several target positioning methods are studied.The fusion location positioning simulation system of bi/multi-static radar is built.2.Preceded False Target(s)Jamming Against Bi/Multi-static Radar.For the two widely used pulse compression signals,the chirp signal and phase-coded signals,after the characteristic of range-Doppler is analysed,the mathematical model of intermittent sampling repeater jamming on bistatic Radar is built.Then a new method of preceded false target jamming against phase-coded radars is presented,and yet the correlation jamming parameters are discussed.Combined with the simulation system of bi/multi-static radar,the effect of preceded and delayed false target on the different target fusion location positioning of bi/multi-static radar is analysed.3.Cross-Polarization Jamming Technology for Bi/Multi-static Radar.Based on the spatial polarization characteristics of the phased array radar,the sum-difference beam polarization characteristics of the phased array radar are studied.Cross-polarization jamming technology for Phased Array Radar is proposed,through compared the sum-difference ratio of the main polarization and the cross polarization.Then combined with the simulation system of bi/multi-static radar,the effect of Cross-polarization jamming on the different target fusion location positioning of bi/multi-static radar is analysed.