估值平均误差J是判断诊断精度的有效判据。
The averaged error of estimation J is an effective criterion for determining the diagnosis accuracy.
而AR模型的阶次由最终预测误差（FPE）判据确定。
The order of the AR model can be determined by Final Predictio nError (FPE) criterion.
实验结果表明在该系统中锐度函数法作判据的效果要优于均方差函数法，最后分析误差因素并提出修正途径。
Experiment shows that acutance function method is better than mean square error function method. The error factors are analyzed and corresponding improvement approaches are put forward.
应用推荐