具有鲁棒性的一种时变参数估计算法

时变参数的估计问题，对于动态系统的控制是十分重要的。针对一种基本模型，韩志刚给出了一种时变参数估计算法，该算法在一定条件下具有一些优良性质，但是没有考虑算法的鲁棒性。针对另一种基本模型Goodwin给出了一种带死区的投影算法，由于引入了死区而使该算法具有鲁棒性。本文基于Goodwin给出的带死区的投影算法，在韩志刚给出的动态系统时变参数估计算法中引入死区，得到了一组新的算法，该算法既能反映动态系统时变参数的时变特性，又具有一定的鲁棒性，并且在一定条件下具有快速跟踪性质。

A robust algorithm for time varying parameter estimation

Time varying parameter estimation is very important to the control of dynamic system. Considering a general model,Z.G.Han put up a time varying param ete r estimation algorithm which in some given conditions, has good properties, but doesn′t consider the robustness. For another model, Goodwin put up a proje ct ive algorithm with deadline, so the algorithm has rubustness. Based on the proje ctive alg orithm with deadline by Goodwin, and deadline being put into the algorithm of dy nami c system parameter estimation by Z. G Han, a new algorithm is achieved. The new algorithm both has the time-varying property and robustness property, and also at given condition has quickly tracing property.