改进灰导数和时间响应函数的新灰色预测模型  

A New Grey Model of Improvement Grey Derivative and Time Response Sequence

作　　者：王健[1] 

机构地区：[1]安阳师范学院数学与统计学院,河南安阳455002

出　　处：《数学的实践与认识》2014年第2期12-17,共6页Mathematics in Practice and Theory

基　　金：河南省自然科学基金项目(0511013800)

摘　　要：以白化方程为基础,利用梯形公式白化灰导数,同时根据最小二乘法求出时间响应函数中的常数c,得到一种改进的灰色预测模型.应用实例说明改进模型具有较高的预测和拟合精度.Based on the white different equation and trapezoid formula,grey derivative is whiten; and by using the method of the least square estimate to discover the constant number c in the time response sequence,and the method of metabolism,a new grey prediction model was proposed in the paper.The result of simulation and the comparative analysis show that the amendatory model is better in accuracy.

关 键 词：白化方程 灰导数 时间响应函数 预测 

分 类 号：F224[经济管理—国民经济]