Semi‐Global Output Feedback Stabilization for a Class of Uncertain Nonlinear Systems |
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Authors: | Junyong Zhai Chunjiang Qian Haibo Du |
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Affiliation: | 1. School of Automation, Southeast University, Key Laboratory of Measurement and Control of CSE, Ministry of Education, , Nanjing, Jiangsu, 210096 China;2. Department of Electrical and Computer Engineering, The University of Texas at San Antonio, , San Antonio, TX, 78249 USA |
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Abstract: | This paper addresses the problem of semi‐global stabilization by output feedback for a class of nonlinear systems whose output gains are unknown. For each subsystem, we first design a state compensator and use the compensator states to construct a control law to stabilize the nominal linear system without the perturbing nonlinearities. Then, combining the output feedback domination approach with block‐backstepping scheme, a series of homogeneous output feedback controllers are constructed recursively for each subsystem and the closed‐loop system is rendered semi‐globally asymptotically stable. |
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Keywords: | Output feedback semi‐global nonlinear systems |
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