摘要
针对雷达信号被截获问题,为了实现先敌发现的目的,通过搜索和跟踪状态的功率控制,实现了雷达的低截获概率(LPI)探测技术。论述了雷达LPI探测的原理,推导了临界功率和LPI探测距离的表达式,给出了功率控制步进和目标RCS抖动对LPI探测距离的影响机理。仿真结果表明,在功率控制步进大于6 dB、RCS抖动超过1 dB时,在LPI探测距离内截获状态和探测状态会发生较大起伏,与实际试验的结果相符。
Aiming at the problem of radar signal interception,low probability of intercept(LPI)detection of radar based on power control is studied in order to find the enemy first.The principle of LPI detection is described.Then,the formulas of critical power and LPI detection distance are deduced.The effects of power control step and radar cross section(RCS)jitter are discussed.Simulation results show that when the power control step is more than 6dB and RCS jitter is beyond 1dB,the intercept and detection mode will undulate clearly which is consistent with the test result.
作者
王亚涛
张保群
曾小东
WANG Yatao;ZHANG Baoqun;ZENG Xiaodong(Southwest China Institute of Electronic Technology,Chengdu 610036,China)
出处
《无线电工程》
2019年第3期205-209,共5页
Radio Engineering
基金
国家部委基金资助项目
