某型导弹虚拟样机验模与仿真

为辅助导弹武器系统的研制,采用虚拟样机技术对某型导弹系统建模并对模型进行验证。介绍某型导弹虚拟样机的总体结构,提出对仿真模型进行校验的方法:把模型校验作为一个过程,采用分级验证,由子模型到程控弹模型,再到制导回路模型,逐步进行校验。对该型导弹虚拟样机进行验模的结果表明:经过校验的模型既能预测弹道的性能,又能对试验中出现的问题进行复现和分析,为后续的导弹系统仿真及性能评估奠定了基础。

Cross Spectral Estimation and Its Application in Missile Systems

A new method based on cross-spectrum estimation for the verification and validation of computer simulation models is expounded in accordance with the characteristics of missile systems. The new method can expose the differences between two time processes in several aspects and can also give quantitative analysis results about the statistical consistence between them. An application to an actual anti-tank missile system simulation is presented and the calculated results confirm the effectiveness of the method. The approach can also be employed to verify the simulation models of other dynamic systems.