摘要
鉴于以往灰色模型背景值取值的不足,拓展了背景值的取值范围,提出在一定条件下任意加权模型背景值的确定方法,通过算例,得出RGM(1,1)模型预测和模拟效果相比较GM(1,1)和PGM(1,1)更好。
The former grey model is deficient in obtaining background value. In this paper, we exploit the range of the background value, propose a method by adding certain weight to get the background value under certain condition.By the example, we obtaine the RGM （1, 1） model which is much better than the GM （1, 1） model and the PGM （1, 1） model in forecasting and simulating.
出处
《四川测绘》
2008年第1期21-23,共3页
Surveying and Mapping of Sichuan
关键词
灰色模型
背景值
变形预测
权
Grey model
Background value
Deformation prediction
Weight
