机载自卫有源压制干扰效果评估模型研究

Research on the model evaluating the efficiency of the airborne active self-defence jamming system

机载自卫有源压制干扰系统是攻击机进行攻防对抗过程中必不可少的电子支援系统。对机载自卫有源压制干扰系统与制导雷达武器系统进行了建模与仿真,建立了制导雷达的发现概率模型。通过对雷达制导武器系统作战性能的分析,给出了机载自卫有源压制干扰的最大和最小干扰距离方程,并根据此方程获得战场想定下的实时干扰功率和接收机灵敏度的数学模型,对机载自卫有源压制干扰时机进行了分析。通过对仿真结果及相应图表的分析,对比了不同条件下干扰效果的变化情况。

The airborne active self-defence jamming system is an essential electronic supporting system in the course of offense-defense. The modeling and simulating of the counter measure of the airborne active self-defence jamming against the radar of weapon systems are implemented. The model of detection probability of weapon systems is established. The calculation of the real time range, jamming power and sensitivity is deduced, based on the analysis of the weapon system＇s performance. Thus, the math model of the real-time jamming power, receiver sensitivity and jamming area is attained. The variance of jamming efficiency under different condition is compared based on the analysis of simulation results and corresponding charts.