海基导弹初始误差分离建模与参数估计

影响海基导弹落点偏差的因素主要是制导工具误差和初始参数误差。首先分析了海基导弹初始误差的来源,包括三项定位误差、三项定向误差以及三项艇速误差。然后详细推导了初始误差对弹道遥测、外差数据的影响,建立了海基导弹初始误差分离的线性模型,结果表明初始误差与工具误差可以实现线性分离。最后根据六自由度弹道仿真程序仿真的遥测数据和外测数据对模型进行了验证,计算结果证实了模型和算法的正确性与可行性。

Modeling and parameter estimation for initial launched parameter error of warship-missile

Guidance instrument systematic errors and initial launched parameters errors are two principal factors in the submarine launched missile precision analysis.The origin and component of initial launched parameter errors,including three position parameter errors,three directional parameter errors and three submarine velocity errors are anlayzed.Then,the effect of initial errors for telemetric data and exterior data are minutely induced,and a linear separation model of initial launched parameter errors for warship launched missile is established,the result shows that guidance instrument errors and initial launched errors can be separated based on the linear model.Finally,the model is tested by simulated telemetric data and exterior data.The results show that the model of initial launched parameter errors separation is correct and feasible.