改进的灰色关联投影法在大气环境质量评价中的应用

大气环境质量评价具有多指标的特点,且各指标的属性、重要程度和可比性都不相同,使得方案比选具有明显的不确定性。通过采用适应不同环境的分辨系数和基于信息熵的权重计算,来改进灰色关联投影方法,使得大气环境质量评价更加客观、公正和准确。最后用实例论证该方法是有效可行的。

APPLICATION OF IMPROVED GRAY RELATION PROJECTION METHOD TO EVALUATION OF ATMOSPHERE ENVIRONMENT QUALITY

Each index consists of atmosphere environment quality and it has its own attribute,importance and comparability,which makes the process of scheme's selection gray.The gray relation projection method is improved through differentiate coefficient introduced that is suitable for different situation and weight accounting based on information entropy,which makes evaluation of atmosphere environment quality much more objective, equitable and accurate.In conclusion, instance demonstrates that the method is efficient and feasible.