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带有阶跃函数的GIM(1)预测模型及其应用
引用本文:向跃霖.带有阶跃函数的GIM(1)预测模型及其应用[J].干旱环境监测,1998,12(1):32-35,42.
作者姓名:向跃霖
作者单位:湖南省洞口县环保局!洞口,422300
摘    要:结合某水域地面水ROD5的预测实践,研究提出了带有阶跃函数的GIM(1)预测模型,并给出了估计这种模型参数的简便方法,从而扩大了GIM(1)模型在环境系统中的应用范围,实例表明,运用该方法得到的模型比常规GIM(1)具有更高的精度。

关 键 词:阶跃函数  GIM(1)  参数估计  BOD5  预测  水质监测

THE GIM(1) FORECASTING MODEL WITH A JUMP FUNCTION AND ITS APPLICATION
Xiang Yuelin.THE GIM(1) FORECASTING MODEL WITH A JUMP FUNCTION AND ITS APPLICATION[J].Arid Environmental Monitoring,1998,12(1):32-35,42.
Authors:Xiang Yuelin
Abstract:Combining forecasting practice in BOD5 of some surface water,a new model of the GIM (1) with a jump function is set up and studied. A hew model of parameters estimation of this model is proposed, Thus, the applicable range in environmental seytem was extended for the GIM(1) model. A practical example shows that the forecasting precision of the GIM(1) model with a jump function is good by means of the new method.
Keywords:Jump function  GIM(1)  Parameters estimation  BOD5  Forecast
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