作者：Wang Lei, Ortega Romeo, Bobtsov Alexey
来源：AUTOMATICA 卷:149 页(号):110838 出版时间:MAR 2023
State observation of state-affine nonlinear systems is widely used in practical applications, e.g., vehicle localization. We present a new observer design method by introducing dynamic extensions to transforming the problem to a parameter estimation problem, and firstly show that the necessary observability condition is also sufficient to design a globally exponentially stable observer, in contrast with existing results that require the strictly stronger assumption of uniform complete observability of the system.
