为有柔韧的间接模型的动力学和围住的骚乱,设计和分析引用的 unmodeled 的分离时间的系统的一个类,有规范的适应法律的适应控制(MRAC ) 被调查。主要工作包括三部分。第一,这被显示出构造参数评价算法不仅拥有传统的评价算法的象那些的一样的性质,而且在零避免分割的可能性。由建立在工厂参数估计和控制器参数估计之间的一种关系,第二,后者的一些类似的性质也被建立。由在分离时间的系统上使用在使正常化的信号和靠近环的系统,和一些重要数学工具的所有信号之间的关系,作为在连续时间的案例中,第三,到分离间接柔韧的 MRAC 计划的系统的稳定性和坚韧性分析途径严厉地被开发。
For a class of discrete-time systems with unmodeled dynamics and bounded disturbance, the design and analysis of robust indirect model reference adaptive control (MRAC) with normalized adaptive law are investigated. The main work includes three parts. Firstly, it is shown that the constructed parameter estimation algorithm not only possesses the same properties as those of traditional estimation algorithms, but also avoids the possibility of division by zero. Secondly, by establishing a relationship between the plant parameter estimate and the controller parameter estimate, some similar properties of the latter are also established. Thirdly, by using the relationship between the normalizing signal and all the signals of the closed-loop system, and some important mathematical tools on discrete-time systems, as in the continuous-time case, a systematic stability and robustness analysis approach to the discrete indirect robust MRAC scheme is developed rigorously.