动基座发射飞行器初始误差分离线性建模及仿真

摘要

利用初段获取的遥外测数据准确实现对各项初始误差的分离是动基座发射飞行器精度分析的重要环节。着重初始误差影响机理分析，推导遥外测视速度差的计算公式，详细分析平台惯性坐标系和发射坐标系的关系，建立视位置域下的初始误差分离线性模型。利用弹道仿真平台生成遥外测数据进行初始误差分离的仿真分析，验证模型和估计方法的正确性和可行性。%It is one of the most important parts in accuracy analysis for vehicles launched on moving base, to realize the initial error separation utilizing the telemetric data and exterior data obtained in initial phase. Starting with the initial error mechanism analysis, a formula of the apparent velocity difference between telemetric data and exterior data is deduced. Then the relationship between the platform inertial coordinate system and the launching coordinate system is analyzed, and the linear model of initial error separation in apparent position region is established. Through the initial error separation simulation using the data generated by the ballistic simulate platform, the accuracy and feasibility of both the model and the estimating method are proved.