基于脱靶量数据的发射系航迹参数求解方法

An Approach of Trajectory Solving in Launch Coordinate System Based on Miss Distance Measurement Data

针对当前海态巡航飞行试验末段外测无法跟踪测量的实际问题,基于现有脱靶量测量系统,建立了利用某脱靶量测量数据到发射系的转换模型。此模型将脱靶量测量数据统一到发射系航迹中,有利于航迹分析工作。并建立了转换结果的误差估计模型,误差模型充分考虑了脱靶量测量误差、靶船定位误差以及靶船航向角误差。利用仿真数据对转换模型及误差模型进行了计算验证。结果表明,位置误差满足精度要求。该方法对延拓外测处理时段具有积极意义。

Trajectory measurement systems cannot track in-flight targets at the terminal range in present submarine-launched missile test.To solve this problem,this paper presents a conversion model that can get trajectory of the launch coordinate system using miss distance measurement data.The model integrates miss distance data into the launch coordinate system to enhance trajectory analysis.Furthermore,an error estimate model is established for converted results and the model incorporates three factors,miss distance measurement error,target ship position error and target ship course error.The conversion model and error estimate model are validated using simulation data and the results indicate that the position error meets accuracy requirements.The approach is of significance to extension of the range of trajectory analysis.