一种多干扰机幅-频协同调制的SAR-GMTI欺骗干扰方法

针对单干扰机生成的虚假目标经三天线合成孔径雷达-地面动目标显示(Synthetic Aperture Radar-Ground Moving Target Indication,SAR-GMTI)处理后,其重定位结果不可控,始终回归于干扰机处的问题,本文提出了一种多干扰机幅-频协同调制的欺骗干扰方法.文中首先建立了以噪...

A Deception Jamming Method Against SAR-GMTI Based on Amplitude-Frequency Cooperative Modulation of Multiple Jammers

Considering the problem that the relocation of false targets under single jammer is uncontrollable after three antennas SAR-GMTI processing， which makes them always return to the jammer’s position， a deception jamming method is proposed in this paper， which is based on amplitude-frequency cooperative modulation of multiple jammers. First， the cooperative jamming model of multiple jammers is established， which is based on noise multiplication. Then， according to the analytical expression of SAR-GMTI output， the principle of cooperative deception is analyzed theoretically and the amplitude-frequency cooperation condition of multiple jammers is deduced. Afterwards， the performance of the proposed jamming method is analyzed in detail. Simulation results demonstrate that the proposed cooperative jamming method of multiple jammers can effectively control the relocation of false targets. Compared with convolution modulation， the proposed method can greatly reduce jamming modulation time， which provides some reference values for engineering applications.