无偏GM(1,1)模型的动态特性分析

Dynamic Feature Analysis of Unbiased GM(1,1) Model

传统GM(1,1)模型是最基本的灰色预测模型,无偏GM(1,1)模型是在传统GM(1,1)模型基础上的一种改进,它消除了传统GM(1,1)模型本身所固有的偏差.对无偏GM(1,1)模型的动态行为特性进行分析,并与传统GM(1,1)模型进行对比,明确了无偏GM(1,1)模型特性和适用条件.

Traditional GM （1,1） model is the base of grey forecasting model. Unbiased GM （1,1） model is an improved model based or; traditional GM （1,1） model and it eliminates the inherent deviation of traditional GM （1,1） model. The dynamic feature of unbiased GM （1,1） model is analyzed ; and the comparison between unbiased GM （1,1） model and traditional GM （1,1） model is given so as to clarify its model characteristics and suitable conditions.