基于时序列判别函数的机载导弹火控精度分析

在以往通过建立系统动态误差的数学模型对机载导弹火控精度做定性研究的基础上,分析了火控误差数据的特点,提出利用高阶累积量建立误差序列的数学模型,然后基于判别函数对火控系统精度进行定量分析,以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。

Aircraft fire control system's precision test based on time series distinguishing function

The data obtained in the airborne fire control system's precision test are always the time series data,the dynamic error characteristic of the system can be acquired by processing and analyzing the data.The qualitative analysis of the system's precision is always done using the dynamic mathematics model of the system's error data,which is built through the time series theory.The error data is analyzed firstly,and the model of the data is built using higher-order statistics.Then the distinguishing function is introduced to dispose the data in order to make the quantitative analysis of the system's accuracy,which result shows much impersonal and profoundly assessment.The geometry and information's distance distinguishing function are used in our work,the first is simple in count which only calculates the model parameters,but the latter has the strong distinguishing ability for taking the model parameters and the remaining variation into account synthetically.