摘要
修正了 Ｇ Ｍ （２，１）灰色模型．利用 Ｚ 变换给出 Ｇ Ｍ （１，１）、 Ｇ Ｍ （２，１）的时间响应序列，改进了灰色预测模型，同时证明该时间响应序列具有自回归性．
In this paper, the grey model GM(2,1) was corrected. The time response series of GM(1,1) and GM(2,1) were given by means of using the Z transform method. Meanwhile, the grey forecasting models were improved and it was verified that the time response series had the properties of autoregression.
出处
《福建农业大学学报》
CSCD
1999年第2期243-246,共4页
Journal of Fujian Agricultural University
关键词
灰色模型
时间响应序列
预测
自回归
grey model
time response series
forecasting
autoregression
