基于变异系数权重的灰色关联投影法在水质评价中的应用

Application of Grey Relation Projection Method with Variation Coefficient Weight for Evaluation of Water Quality

运用灰色系统理论和矢量投影原理,提出了灰色关联投影法,介绍了该方法的基本原理,给出了灰色关联投影角、灰色关联投影值等基本概念,总结了该方法进行系统分析的一般步骤。并将其应用于区域水环境质量综合评价当中,结果表明:该方法对于水质评价是有效可行的。

This paper puts forward a new method named grey relation projection using the grey system theory and the vector projection. It introduces the principle of the method and some basic concepts such as grey relation projection angle and grey relation projection value etc. Then the authors summarize the general steps of analyzing systems using the method, and put it into the evaluation of regional water quality. The result shows ： the method is effective and feasible to the evaluation of regional water quality.