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 20 of 158 for “"Single input"”.
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Digital current mode control for multiple input converters
… digital current mode control on multiple-input (MI) converters is studied. As for MI topologies having a central energy transfer inductor, the predictive constant on-time current-mode control can greatly reduce both the design and digital realization efforts needed. By doing digital …
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Pseudolinearization Using Spline Functions With Application to the Acrobot
… controller and extended linearizing observer for single-input, multi-output nonlinear systems is presented. The technique uses spline functions to approximate the elements of gradient vectors which arise during the derivation of the pseudolinearizing controller and extended linearizing observer. …
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Optimizing diesel engine efficiency using the controllability of a variable ratio hydrostatic transmission
… This model was used as an aid in designing a single input controller which regulates engine speed to optimize efficiency while maintaining constant transmission output speed under changing load conditions. Compensation was necessary to stabilize the system because of positive feedback in the …
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Imprecise computation in real-time control systems
… of imprecise computation, caused by corrupted input and/or prematurely terminated output computation, on tracking errors for single-input-single-output and multiple-input-multiple-output time-invariant systems with deterministic errors as well as random errors. We establish the tracking error …
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Adaptive Flight Control in the Presence of Input Constraints
… In this thesis the original work of others on single input single output adaptive control in the presence of actuator amplitude limits is extended to multi-input systems. The Lyapunov based stability analysis is presented. Finally, the resultant technique is applied to aircraft and missile …
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Modelling, simulation, and control of robots
… optimal controllers for the robot. The Multi Input Multi Output optimization problem splits up into decoupled Single Input Single Output problems which are individually solved. Optimal systems thus designed are simulated and compared to traditional robot controllers. Simulations confirm the …
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Time optimal control for asymptotic tracking of linear systems with input saturation
… properties for a class of linear systems with input saturation, and design composite nonlinear feedback controllers. We have explored the problem of asymptotic time optimal tracking for a class of linear system with actuator nonlinearities. A formula on the optimal settling time is given and …
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Supervisory Control of a Commercial Heating, Ventilating, and Air Conditioning System
… generated 'optimal' setpoints for lower-level single-input, single-output controllers to maximally utilize the control system framework currently used in the industry. Two different supervisory controller configurations were developed and compared with the existing normal mode of control. …
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Circumferential propagation of acoustic pulses in partially-filled cylindrical shells
… of periodic echoes were received when a single input pulse was applied to the outer surface of the shell. The periodic behaviour suggests that the pulses take different paths within the system, and that these paths depend upon the height of the liquid filler. Computer simulation and …
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Multivariable cycle-to-cycle of an injection molding process
… the precision and quality of manufactured parts. Single input-Single output has been studied as the basis of CtC feedback control. In the manufacturing sector, processes consist of many input parameters and critical outputs. Multivariate CtC seeks to extend the findings of SISO CtC to more …
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Performance Evaluation of Multiuser Detectors with V-BLAST to MIMO Channel
… over an uplink using AWGN, Rayleigh flat fading single-input single-output (SISO) and multiple-input multiple-output (MIMO) channel models. First, we review the performance of three multiuser receivers; the decorrelator, the MMSE receiver and the multistage parallel interference cancellation …
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Full envelope wind turbine controller design for power regulation and tower load reduction
… is undertaken in this thesis. A full envelope single input single output controller is designed to be used as a benchmark for comparison of the newly proposed coordinating controller which successfully mitigates tower fatigue loads. The design of the newly proposed coordinated controller is …
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A Generalized Model for Wall Flame Heat Flux During Upward Flame Spread on Polymers
… during upward flame spread on PMMA based on a single input parameter, the mass loss rate. In this study, the model was generalized to predict the heat flux for a broad range of polymers by adding the heat of combustion as a second input parameter. Experimental measurements were conducted to …
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Estudo de sistemas de controle a estrutura variável
… right-hand side are used. For the case of single input-single output linear systems, a detailed analysis of the essential properties and advantages of variable structure control systems is done. An important characteristic of these systems, is the possibility of sliding regimes, when the …
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Scalable design rules for heterogeneous networks
… allowing for interconnection asymmetries, multi-input-multi-output systems and nonlinearities. For networks of single-input-single-output systems with a bipartite interconnection structure the protocol takes the form of a graphical Nyquist type test. This allows local control systems to be …
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Adaptive neural network control of discrete-time nonlinear systems
… form. The systems studied include single-input single-output nonlinear systems, multi-input multi-output nonlinear systems. For affine systems, the existence of the desired feedback controls is proved. For non-affine systems, by using implicit function theorem, the existence of the …
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Feedback linearization of nonminimum phase systems and control of aeroelastic systems and undersea vehicles
… control systems for a class of nonminimum phase single input-single output nonlinear systems. The linearized system is assumed to have one unstable zero. Since asymptotic or exact tracking of output trajectory cannot be accomplished, an approximate output is derived by neglecting the unstable …
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Approximate inverse scattering using pseudodifferential scaling
… operator: (1) follows from its application to a single input vector; (2) suffices to approximate its inverse. I use an efficient algorithm to apply pseudodifferential operators, given their symbol, to construct a rapidly converging optimization algorithm that estimates the symbol of an inverse …
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BIOINFORMATICS TOOL AND MODEL DEVELOPMENT FOR STUDYING BIOLOGICAL NETWORKS AND PROTEIN-PROTEIN INTERACTIONS
… automatic detection of multiple networks from a single input. PROFEAT would deliver the expanded understandings of systems biology. As tissue-specific networks have transcended the global network in biomarker/target discovery, we developed TISPIN database for human TIssue-Specific Protein …
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A study of Symmetric and Repetitive Structures in Image-Based Modeling
… of having similar or repetitive structure in the input image data. In general, prior knowledge of structure regularity helps with the efficiency and quality of image-based-modeling; however, spurious camera geometries due to appearance ambiguity arising from similar structure can lead to algorithm …
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