几何截断定距激光引信系统参数优化

Parameter optimization of laser fuze system with geometry intercepting ranging

几何截断定距激光引信因其结构简单、定距精度高、抗干扰能力较好,在低成本弹药中有较大的应用需求,其定距距离和精度与系统参数设计密切相关。为设计满足要求的几何截断定距激光引信系统参数,建立几何截断定距回波功率模型,分析系统参数的变化对工作距离的影响,揭示工作距离与系统参数的关系,并计算得到满足条件的系统参数取值区间,对比分析后得到理论上的最优系统参数d=63 mm、θr=35 mrad、θt=10 mrad、αr=0.5πrad、αt=0.45πrad,设计激光定距模拟实验平台验证设计结果,实验结果与理论一致,表明设计参数能够满足系统要求,该研究可为几何截断定距激光引信的参数设计提供参考。

Because of its simple structure, high precision ranging and good anti-interference ability, the laser fuze system with geometric intercepting ranging has a larger requirement in low-cost ammunition, as well as the ranging of the point of explosion and accuracy are all closely related to the system parameter design. In order to meet the requirements for the design of the parameters of the laser geometry intercepting ranging system, the geometric intercepting interval echo power model was established and the influence of the change of these parameters on the distance of work was analyzed, and the relation between work distance and system parameter was revealed. Then the value domain of parameter meeting these conditions was calculated. Through comparson and analysis, the optimal parameters of the system in theory obtained were d=63 mm, θr=35 mrad, θt=10 mrad, αr=0.5π rad, αt=0.45π rad. The experiment platform of the laser ranging simulation was designed to verify design results. Then the experimental results were consistent with theory. So it indicates that the design parameters can meet the system requirements. This research can provide reference to the laser geometry intercepting ranging system＇s parameters.