窄波束引信飞行试验启动参数计算精度分析

Analysis of Starting Parameters Calculation Accuracy of Narrow Wave Beam Fuze in Flight Test

引信启动参数计算是舰空导弹飞行试验结果分析的重要内容,为此对利用试验外测和遥测数据计算窄波束侧视引信启动参数的精度进行仿真分析。在建立同侧双站光学外测模型的基础上,给出引信启动部位和启动距离的计算方法,重点仿真分析相关测量因素对计算精度的影响。仿真结果表明:经纬仪测角误差、事后判读误差、采样周期对启动部位和启动距离计算精度影响均较大,导弹攻角和侧滑角计算误差仅对启动部位计算精度影响较大。引信启动参数计算方法是正确的,计算精度可以达到0.2m。

Fuze starting parameters calculation is an important work of result analysis in ship to air missile flight test, the starting parameters calculation accuracy of narrow wave beam side looking fuze are simulated and analyzed which are calculated using exterior trajectory data and telemetry data. Based on establishing optical exterior trajectory measurement model of two theodolites on one side, the methods of calculating fuze starting position and starting distance are given, and influences of relevant measurement factors on the calculation accuracy are simulated and analyzed. The simulation results show that calculation accuracies of fuze starting position and starting distance are influenced seriously by angle measurement error and ex-post distinguish error and sampling cycle, and only the calculation accuracy of fuze starting position is influenced seriously by calculation errors of attack angle and sideslip angle of missile. The method of calculating fuze starting parameters is valid and the calculation accuracy can reach 0.2 m.