【作者】 王凤杰； 陈慧敏；

【Author】 WANG Feng-jie;CHEN Hui-min;Science and Technology on Electromechanical Dynamic Control Laboratory,Beijing Institute of Technology;

【机构】 北京理工大学机电动态控制重点实验室；

【摘要】 针对脉冲激光引信易受云雾等自然环境的干扰而产生虚警的问题,研究了脉冲激光引信云雾回波特性。基于Mie散射理论,采用蒙特卡罗方法,建立了脉冲激光云雾传输模型,分别对脉冲激光引信和目标均处于云雾中以及目标处于云雾中而脉冲激光引信处于云雾外这两种情形下的云雾回波进行了仿真,获取了在引信与目标同处于云雾中而引信与目标距离为10m,能见度分别为1,3,5,10m时的回波信号,以及当目标处于云雾中而脉冲激光引信处于云雾外,能见度为3m,引信与目标距离为10m,云雾边界分别为0,1,3,5,7,9m时的动态回波特性。分析了云雾参数和位置对云雾回波的影响,以及云雾回波和目标回波的波形差异。该研究可为脉冲激光引信的抗云雾干扰研究提供相应的理论支持。更多还原

【Abstract】 Pulse laser fuze is susceptible to the interference of natural environment,such as cloud and fog,and easy to produce a false alarm.Therefore,this paper researches the cloud and fog echo characteristics of the pulse laser fuze.On the basis of Mie scattering theory,apulse laser transmission model for the cloud and fog is established by using Monte Carlo simulation.The cloud and fog echoes in two conditions are simulated.The first condition is that both pulse laser fuze and target are in the inside of cloud and fog,and the other is that the target is in the inside of cloud and fog and the pulse laser fuze in the outside.At the first condition,the echo signals are acquired when the distance between pulse laser fuze and target is 10 mand the visibility are 1,3,5and 10 m,respectively.At the second condition,the dynamic echo characteristics are obtained when the distance between pulse laser fuze and target is 10 m,the visibility is 3mand the cloud and fog boundaries are 0,1,3,5,7and 9m,respectively.Moreover,it analyzes the influences of cloud and fog parameters and position,on the cloud and fog echo,and the waveform difference of cloud and fog echo and target echo.This research provides the theoretical support for the anti-interference of pulse laser fuzes.更多还原