摘要
本文给出了一种估计带有阶跃函数的GM(1,1)模型参数的新方法。该方法不仅计算简单,而且扩大了GM(1,1)模型的应用范围。实例表明,运用该方法得到的模型具有较高的拟合精度。
In this paper, a new method of parameters estimation of the GM(l,l) model with a jump function is proposed. By means of the new method, the calculating volume of parameters estimation of the GM(1,1) model with a jump function is decreased greatly, and the applicable range in the GM(1, 1) model is extended. A practical example shows that by means of the new method, the forecasting precision of the GM(1 ,1) model with a jump function is good.
出处
《系统工程》
CSCD
1996年第1期65-68,共4页
Systems Engineering
关键词
阶跃函数
GM(1
1)模型
参数估计
Jump function, GM(l.l) model. Parameters estimation, A new method
