Robust D-Stability of Mimo System in The Parameter Space
参数空间中多变量系统的鲁棒D-稳定性

In order to keep the D-stability of multivariable system with respect to parameter uncertainty, the largest region in which the parameters of the system are allowed to perturb is constrained by the region D in complex plane and its nominal system. The largest radius of the region is given by the condition of critical D-stability and character of linear operator. Because the radius is expressed with general norm, we can obtain several largest stable regions (such as parallelotopes, ellipsoides, polytopes el.) in parameter space.