摘要
讨论了3种模型(灰色模型、指数函数模型和自回归模型)对具有指数函数特征的时间序列的建模过程,比较与分析了其特点。通过3个数例对3种模型的长期预测结果进行计算与分析,结果表明:3种模型都可以用于具有指数函数特征的序列建模,并可以相互验证。
Aiming at the characteristics of exponential function,this paper had discussed,compared and analyzed the modeling process and characteristic of three models: grey model,exponential function model and autoregressive model.The computed results of three numerical examples showed that three models could be used for long-term forecast for those time series which had exponential function characteristics.They can also verify mutual.
出处
《地理空间信息》
2011年第5期127-129,167,共3页
Geospatial Information
基金
国家自然科学基金资助项目(40674008)
河北省交通运输厅科技计划资助项目(Y-2010136)
关键词
指数函数
灰色模型
自回归模型
沉降预测
等维新息
exponential function,grey model,autoregressive model,deformation forecast,innovation of equal dimension
