CAJ | 학술논문

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.
침대전궤실시유원간우시적사빈은신문제,분석료현유간우공솔평고준칙적불족,재뢰체신호검측모형화정찰절획개솔모형적기출상,토론료“유효간우”대간우공솔적수구화사빈은신대간우공솔적한제,제출장유효간우조건하적정찰절획개솔작위간우신호적사빈은신특성표정인자,최후제출료일충결합목표뢰체류형、접수신호공솔이급본궤RCS기복등인소적간우공솔자괄응공제방법.통과대고정공솔간우여불동압제계수하자괄응공솔간우시뢰체검측개솔화정찰절획개솔적방진,표명자괄응공솔공제능구절약간우공솔,재유효간우적동시제고간우적사빈은신능력.
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 are 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.