摘要
以线性矩阵不等式为工具 ,研究有关 2 - D系统第二类 Fornasini- Marchesini模型的稳定性的问题 .首先提出了该类系统的一种 Lyapunov不等式 ,由此给出了该类系统渐近稳定的新的判别条件 .其次 ,给出了该类系统能稳定化的充分条件和反馈矩阵的求法 .最后 ,提出了一种求该类系统的稳定性裕度下界的方法 ,并指出了利用该方法得到的稳定性裕度的下界大于原有文献中给出的下界 .
The stability problems for the second Fornasini-Marchesini model of 2-D systems are investigated by using linear matrix inequality. First, a kind of 2-D Lyapunov inequality is proposed, and some new criteria for asymptotical stability of the systems are given. Secondly, the sufficient conditions for stabilization of the systems are derived and the algorithm for determining the feedback matrix is presented, too. Finally, a new algorithm for computing a lower bound for the stability margin of the systems is proposed. It is shown that the lower bound obtained by this algorithm is less conservative than the existing ones.
出处
《自动化学报》
EI
CSCD
北大核心
2002年第4期620-624,共5页
Acta Automatica Sinica
基金
天津市自然科学基金 ( 96 36 0 9511)资助
