基于时间序列判别函数的火控精度检测

Accuracy Test of Airborne Fire Control System based on Time Series Discriminant Function

在以往通过建立火控系统误差时间序列的动态数学模型对火控精度做定性分析的基础上,提出基于时序判别函数对火控系统精度进行定量分析,其结果能给出火控系统精度更客观的检测评定。采用的判别函数有几何距离判别函数和信息距离判别函数,几何距离判别函数仅考虑模型参数信息计算简单,信息距离函数则综合考虑模型参数信息和残差方差的影响,具有较强的判别能力。

The qualitative analysis of the fire control system accuracy has been done by using the dynamic mathematics model of the system＇s error time series data, which was built through the time series theory. Further, in this paper, in order to make the quantitative analysis of the system accuracy, the distinguishing function is introduced, which shows more objective assessment. The geometry and information＇s distance discriminant function are used in our work, the first only calculates the model parameters, so it is simple in computation, but the latter takes the model parameters and the remaining variance into account simultaneously, which provides the strong discriminant ability.