激光引信探测目标回波特性研究

Research on Target Echo Characteristics of Laser Fuze Detection

为了提高弹丸对目标的毁伤效能,依据激光引信探测原理,结合基于重尾函数的发射激光功率时域分布波形,建立了激光引信短距离作用状态下激光辐射到目标的照度计算模型;基于弹目交会角、目标表面特性、目标尺寸以及双向反射分布等因素的影响,建立了激光辐射至目标表面后的反射强度计算模型,构建了多姿态弹目交会下目标的回波计算模型,推导出目标回波信号的输出电压解析式;通过仿真分析了不同弹目之间距离、弹目交会角、目标特性等状态下激光接收系统获取的回波信号,模拟实验证实所建立理论模型的科学性和有效性。

To improve the damage efficiency of projectile to target,according to the detection principle of the laser fuze,this paper established the calculation model of the illuminance of the laser radiation to the target when the laser fuze intersects the target in a short distance by combining with the time-domain distribution waveform of the emitting laser power based on the heavy tail function.Based on the influence of the intersection angle of projectile and target,target surface characteristics,target size and bidirectional reflection distribution,we set up the reflection intensity calculation model of laser radiation to target surface,constructed the target echo calculation model under multi-attitude intersection of projectile and target,derived output voltage analytical formula of target echo signal.The echo signal obtained by laser receiving system under different intersection distance of projectile and target,intersection angle of projectile,and target characteristics was analyzed through simulation calculation.The simulation experiments were carried out to verify the science and effectiveness of the theoretical model.