城市垃圾量的灰色预测

Gray Model Prediction of Municipal Solid Waste

运用灰色系统原理，提出了城市垃圾量预测的非线性模型，并将其非线性微分方程化为简单的非线性方程。根据最小二乘法确定了模型中的参数，从而避免了复杂的矩阵方程运算。文中给出了该模型的ｍａｔａｌａｂ程序，且该模型相比线性模型ＧＭ（１，１）而言，适用性广，拟合精度高。实例验证了该模型用于城市垃圾量预测的可行性和有效性。

Based on the gray model principal, a nonlinear model of the output predication of municipal solid waste was presented. To avoid complex matrix operation, the nonlinear differential equation was transformed to the simple nonlinear equation in which the parameters were determined by least Square method. The matalab program of this model operation was given. Compared with GM (1, 1), This model is more widely applicable and of higher precision. The feasibility and validity of this model in municipal solid waste output prediction is tested by the practical example.