有源激光敌我识别系统作用距离仿真

Operation range emulate for active laser IFF system

分析了有源激光敌我识别系统组成和工作原理;在建立大气衰减模型基础上,利用高斯光束理论方法描述激光光束的传输,从激光峰值功率、束散角等参数推导出激光光束传输的理论模型,在考虑安装平台尺寸以及系统瞄准性能的前提下,对有源激光敌我识别设备的作用距离进行了仿真计算,计算结果表明最小作用距离对系统的限制较大,是设计激光敌我识别系统激光脉冲接收设备探测灵敏度时需要考虑的主要因素;通过分析激光远场光强分布,对有源激光敌我识别设备的束散角选取提出了建议。

The structure of system and work principle is analyzed for active laser identification of friend or foe（IFF）system in this paper.Based on the establishing of atmospheric attenuation model,laser beam transmitting is described in Gaussian beams theory.The theory model of laser beams transmitting is established by laser parameter of peak power,divergence angle,etc.Under the size of load flat and system sighting performance were considered,the operation range of active laser IFF system is emulated and calculated.The calculating results prove that the min operation range has big influence to system,and the min operation range is primary factor to design laser IFF system detection sensitivity.By analyzing the configuration of far-field laser beams,this paper provide sadvice of laser divergence angle choice in active laser IFF system.