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 9 of 9 for “"Gramian"”.
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Noise-Enabled Observability of Nonlinear Dynamic Systems Using the Empirical Observability Gramian
… use of a tool called the empirical observability Gramian. We demonstrate that the empirical observability Gramian can provide a unified approach to observability analysis, by providing sufficient conditions for weak observability of continuous-time nonlinear systems, local weak observability of …
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The Relative Degree of Controllability of Solar Sails in Artificial Lagrangian Orbits
… using the singular values of the controllability Gramian. The relative degree of controllability is determined by comparing the condition number of the controllability Gramian corresponding to individual ALOs. The finite time controllability Gramian is computed for the unstable system, and the …
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Ground Vehicles and Ranging Sensors: Structural Properties for Estimation and Control
… constructibility, we build the Constructibility Gramian for a robot described by the unicycle kinematic model. We rely on this tool for a twofold aim: (a) we build the same abstract trajectory presented for the global analysis and define necessary and sufficient conditions to attain local …
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Edge Artificial Intelligence for Domestic Energy Efficiency
… time series energy data is devised using Gramian Angular Fields (GAF), to produce pictorial representations for further classification on High-Performance Edge Computing (HPEC) platforms. Third, a modular recommender system is developed to produce personalised energy-saving recommendations …
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Dynamic temperature estimation of power electronics systems
… solved by maximizing the trace of observability Gramian. The optimal number of temperature sensors was based on the state estimation error obtained from a Kalman filter. The dynamic thermal behavior of the power electronics systems was represented by a linear state space model by applying the …
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Digital Curvature Estimation: An Operator Theoretic Approach
… this thesis, we show a constructive way using a Gramian matrix where the dual fixed points operate on the fixed points of an operator to derive the limit of the iterates for an arbitrary quasi-compact operator defined on a general Banach space.
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Control-Oriented Model Reduction for Parabolic Systems
… gut approximiert. Ein modifizierter Cross-Gramian Ansatz berechnet auf Basis der Lösung einer Sylvestergleichung reduzierte Systeme für symmetrische Systeme und für Systeme mit skalarem Ein- und Ausgang. Der Fehler ist vergleichbar klein zum approximativen balancierten Abschneiden. …
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Incorporating Flight Dynamics and Control Criteria in Aircraft Design Optimization
… layout. The impulse residues and controllability Gramians are used as surrogates for the control objectives in the MDAO to maximize the controllability and observability of the aircraft. The optimal control designs are compared with those obtained using weight minimization as the design objective. …
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Reduced-Order Reference Models for Adaptive Control of Space Structures
<p>In addition to serving as a brief overview of aspects relevant to reduced-order modeling (in particular balanced-state and modal techniques) as applied to structural finite element models, this work produced tools for visualizing the relationship between the modes of a model and the states of …