给出了基于边缘线性化方法构造的Fuzzy系统输出函数的一般表达式,揭示了该方法的插值机理,证明了由其构造的Fuzzy系统输出函数可归结为插值函数的形式,在此基础上,分析了该方法所构造的Fuzzy系统的逼近误差。仿真实验表明,边缘线性化方法构造的Fuzzy系统对非线性连续函数具有很高的逼近精度。
First,the response function of fuzzy system based on marginal linearization method is obtained. Then,the interpolation mechanism of the modeling method is investigated. The corresponding fuzzy systems can be regarded as interpolation functions. Besides,the approximation accuracy of fuzzy systems based on marginal linearization method is analyzed. The simulation result shows that marginal linearization fuzzy systems are of higher precision than their original nonlinear continuous function.