摘要
针对战机实施有源干扰时的射频隐身问题,分析了现有干扰功率评估准则的不足,在雷达信号检测模型和侦察截获概率模型的基础上,讨论了"有效干扰"对干扰功率的需求和射频隐身对干扰功率的限制,提出将有效干扰条件下的侦察截获概率作为干扰信号的射频隐身特性表征因子,最后提出了一种结合目标雷达类型、接收信号功率以及本机RCS起伏等因素的干扰功率自适应控制方法。通过对固定功率干扰与不同压制系数下自适应功率干扰时雷达检测概率和侦察截获概率的仿真,表明自适应功率控制能够节约干扰功率,在有效干扰的同时提高干扰的射频隐身能力。
To study the radio frequency （RF） stealth in airborne active jamming systems, the shortage of tradi- tional power criterion is analysed, the demand and limitation of jamming power are discussed, under conditions of effective jamming and RF stealth based on the model of signal detection in radar and Electronic Support Mea- surement （ESM）. Keeping the detection probability of radar signals constant, the intercept probability of recon- naissance receiver, as the factor to appraise the stealth performance, is proposed. An adaptive control method of jamming power based on the type of radar, received power and RCS blinking is put forward. In order to estimate the efficiency of this adaptive method, computer simulations axe performed under different jamming blanket fac- tors. Results indicate that compared with the conventional approach, the adaptive method can reduce the jam- ming power, meet the requirement of effective jamming and improve the RF stealth performance of jamming sig- nal as well.
出处
《电讯技术》
北大核心
2012年第12期1934-1939,共6页
Telecommunication Engineering
基金
电子信息控制国防重点实验室基金资助课题(9140C1005051103)
陕西省自然科学基金资助项目(2012JQ8019)~~
关键词
雷达干扰
射频隐身
干扰功率控制
有效干扰
截获概率
radar jamming
RF stealth
jamming power management
effective jamming
intercept probability
