Switched sampled output adaptive observer design for a class of switched nonlinearly parameterized systems under asynchronous switching

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SummaryIn this article, a switched sampled output adaptive observer for a class of switched nonlinearly parameterized systems is designed. Since the switching may occur during the sampling intervals while the sampled output only updates at sampling instants, the asynchronous switching phenomenon arises. Then, a collection of matched and mismatched corrective terms are introduced to deal with the asynchronous switching phenomenon based on sampled outputs and the designed observer. Moreover, some sufficient conditions are derived to achieve the boundedness of observation and parameter estimation errors based on an improved average dwell time method. Finally, the effectiveness of the theoretical result in this article is demonstrated through a simulation example.