基于试验设计与弹道仿真的制导工具误差快速评价方法

Fast evaluating methods on guidance instrument error based on experiment design and trajectory simulation

提出一种以射击精度作为评价标准,通过弹道仿真对制导工具误差进行快速综合评价的方法。讨论了正交试验设计、均匀设计、拉丁超立方设计等三种试验设计方法,并根据抽样数据的特点和不同抽样方法的要求,提出将拉丁超立方抽样法与对偶变数方差缩减技术相结合用于弹道仿真分析,建立了射击精度与制导工具误差系数的简明函数关系式,实现了对制导工具误差的有效评价。经仿真验证,本方法可行有效。

A fast comprehensive evaluation method on guidance instrument error based on trajectory simulation was presented, in which the shooting accuracy was used as the evaluation criterion. Three methods for designing the experiments such as ＇Orthogonal＇, ＇uniform＇ and ＇Latin hypercube sampling＇ were discussed. Considering the characteristic of the sampling data and the requirements of different sampling methods, a new sampling method was applied in the trajectory simulation, which combined the Latin hypercube sampling with variance reduction techniques of antithetic variates. The equation of the shooting accuracy and the guidance instrument error was built. And the guidance instrument error can be evaluated more effectively. The simulation results show that the proposed method is effective and feasible.