灰色系统理论预测大气氮氧化物污染的应用

Application of Grey System Theory for Prediction of Pollution Index in Air Nitric Oxides

根据中国南方某省所辖城市近年来NOX 污染指数的测量数据的统计资料 ,建立了GM (1,1)灰色预测模型 ,通过预测探讨了大气中氮氧化物指数的变化趋势。所建模型残差仅 1.17% ,关联系数为 0 .90 67,精度较高 ,具有较好的可行性和适应性 。

Based on datum of nitric oxides pollution index in one province of south china, grey forecasting model GM(1,1)is established in this paper. The trend of nitric oxides pollution index is discussed through forecasting. The residual error of only 1.17% and the correlation coefficient of 0.9067 is attained. According to these datum, the model has higher precision. This method has been proved to be feasibility and adaptability, can give decision for management .