Impact of cooperative jamming of dual stealth aircraft formation on detection performance of monopulse radar

To effectively test the detection performance of the monopulse radar under cooperative jamming of dual stealth aircraft formation, a blinking jamming model based on the interval of time-varying dual-aircraft formation is established for the first time in this study. By geometric modeling of the blinking jamming mode of the dual-aircraft formation, the authors solved the equivalent time-varying dynamic radar cross section of the penetration operation of the dual-aircraft formation; then, by taking the signal-to-interference ratio of the aircraft fuselage target echo in the actual formation as a parametric variable, we derived the equations for instantaneous detection distance, instantaneous detection probability, and cumulative detection probability of the monopulse radar in the formation projectile, and these equations were applicable to calculation under the actual jamming mode of dual-aircraft formation. Through simulation, the authors concluded for the first time that as the supersonic endurance speed increased, releasing jamming could reduce the radar detection probability considerably by more than 60%, while releasing projectiles could increase the formation’s risk of being detected by the radar by 30.37%. Thus, to effectively reduce the stability of the radar’s detection and tracking performance, the jamming power of the dual stealth aircraft formation should be no smaller than 0.5 kW and the signal gain of the formation should be no less than 20 dB.