随机捷变频雷达抗干扰性能分析与仿真

Analysis and Simulation of Anti-jamming Performance of Stochastic Frequency Agile Radar

为合理评估雷达频率捷变抗干扰性能,基于反电子对抗改善因子EIF模型,引入雷达被干扰概率,改进了干扰频率捷变雷达的有效频带函数,推导了随机频率捷变雷达抗宽带压制干扰、窄带扫频干扰和窄带瞄准干扰的改善因子;并采用计算机动态仿真技术,开发雷达频率捷变抗干扰仿真分析软件,进行干扰与抗干扰动态仿真分析.仿真结果验证了雷达被干扰概率和抗干扰改善因子理论公式的正确性.

Radar anti-jamming performance is an important index for radar operational effectiveness evalua-tion,and the frequency agility is a primary anti-jamming measure of the radar.In order for evaluating reasonably the anti-jamming performance of radar frequency agility,based on the ECCM improvement factors（EIF） model,the radar jammed probability is introduced,and the effective band function of jamming frequency agile radar is improved in this paper.Moreover,the improvement factors of anti-wideband oppressive jamming,narrowband sweep frequency jamming and narrowband spot jamming of the stochastic frequency agile radar are deduced.By taking the computer dynamic simulation technique,the simulation software of radar frequency agility anti-jamming is developed to perform the dynamic simulation analysis of jamming and anti-jamming processes.Simulation results verify the correctness of the theoretical formulas including the radar jammed probability and anti-jamming improvement factors.