Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"nonlinear observers"”.
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Nonlinear Observers for Aircraft Maneuvering in Wind
… dissertation addresses these gaps by advancing nonlinear observer design and flight dynamic modeling to estimate wind from aircraft motion with assured performance. First, a symmetry-preserving, reduced-order state observer is introduced for the unmeasured part of a system's state, leveraging …
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Nonlinear Observers for Human-in-the-loop Control Systems
… considered to control the ball with a joystick. Nonlinear sliding mode observers are developed to estimate the gains of a feedback control law and nonlinear sliding mode observers are developed to estimate the torques on the shoulder, elbow, and joystick joints. The nonlinear observers are …
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Nonlinear observer design using contraction theory with application to heat exchangers having varying phase transition
… repeating phase transition, which is a highly nonlinear process. Mixture of vapor and liquid refrigerant distributed in heat exchangers makes the process dynamics highly complex, including many state variables that are important for stringent control but are not directly measurable. In this …
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Observer Design for Non-Monotonic Nonlinear Systems and Interesting Contemporary Applications
… analyzes observer design for non-monotonic nonlinear systems and develops globally stable observer design techniques for such systems. Non-monotonic nonlinear systems are frequently encountered in many practical applications, including vehicle tracking, magnetic position estimation, …
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NONLINEAR OBSERVER/CONTROLLER DESIGNS FOR SPACECRAFT ATTITUDE CONTROL SYSTEMS WITH UNCALIBRATED GYROS
… noise. This work proposes a class of adaptive nonlinear observers for calibration of spacecraft gyros. Observers for each of the calibration parameters are separately developed, then combined. Lyapunov stability analysis is used to demonstrate the stability and convergence properties of each …
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Estimation of rotor flux of an induction machine
… work. (Busawan et al., 2001) summarises that a nonlinear observers for the estimation of the rotor flux and the load torque in an induction motor. The observers are designed on the basis of the standard alpha - beta Park's model. Finally, fuzzy logic is mentioned in more detailed way and …
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Applied Nonlinear Control of Unmanned Vehicles with Uncertain Dynamics
… a solid control framework for a wide class of nonlinear uncertain systems, with a special emphasis on issues related to implementation, such as control input amplitude and rate saturation, or partial state measurements availability. More specifically, an adaptive control framework, allowing to …