论文部分内容阅读
波门是激光制导中广泛采用的一种抗干扰措施,其对干扰信号录取概率的大小对干扰成功与否非常关键。依据制导信号与干扰信号在波门内既相互联系又相互独立的特点,提出可用干扰信号与制导信号的联合概率密度函数描述干扰条件下波门对激光信号的录取,同时需要考虑干扰信号对实时波门的牵引作用。运用Matlab软件仿真了不同宽度的实时波门录取干扰信号的概率与超前同步时间的关系,表明对宽度一定的实时波门存在一个最佳的超前同步时间;超前同步时间为零时,波门录取干扰信号的概率接近于0.5,而不是接近于1;波门越宽、干扰设备的时间精度越高,干扰信号就越容易被波门录取;波门受到牵引后其对干扰信号的录取概率增加,而波门宽度的影响不大。在此基础上,用Monte-Carlo法对一次制导过程中波门对制导信号与干扰信号的录取以及多次制导中导引头跟踪真假目标的结果作了模拟,这可为建立对激光半主动制导武器干扰效能评估系统打下基础。
Wave Gate is widely used in laser guidance anti-jamming measures, the probability of its interference signal acquisition probability of interference is very crucial. According to the fact that the guidance signal and the interference signal are both interconnected and independent in the wave gate, the joint probability density function of the interference signal and the guidance signal is proposed to describe the admittance of the laser signal by the gate under the interference condition. At the same time, Bo Men’s traction. Using Matlab software to simulate the real-time signal of different width of the real-time signal acquisition probability of the interference signal with the leading synchronization time, indicating a certain width of the real-time wave gate there is an optimal leading synchronization time; leading synchronization time is zero, The probability of interference signal is close to 0.5 instead of close to 1. The wider the gate, the higher the time precision of the interference device, the easier the interference signal is taken by the gate. The probability of admission to the interference signal increases after the gate is pulled , While the effect of wave width is not big. On this basis, the Monte-Carlo method was used to simulate the admittance of Guidance and Interference signal of the gate and the guidance of the seeker in the multiple guidance tracking of true and false targets. Active guidance weapons interference effectiveness evaluation system to lay the foundation.