After introducing the unified model structure and applying stochastic approximation principle , the general recursive identification algorithm of several on - line identification methods is developped 在引進(jìn)統(tǒng)一的模型結(jié)構(gòu)以后,利用隨機(jī)逼近原理,提出了各種在線識(shí)別算法的一般遞推形式。