无偏GM(1,1)模型的动态特性分析

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.