数据组合方法研究，该方法是以多项式为基础通过不断筛选组合来辨识非线性系统的模型。该文章详细介绍了该方法的发展及实现步骤。针对该方法中的不足，提出改进措施-Data combination method, the method is based on the polynomial basis through continuous screening combination to identify the model of the nonlinear system. The article describes in detail the development and implementation steps of the method. Deficiencies in the methods, suggest improvements