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 33 for “"Canonical form"”.
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Um desacoplamento canônico para sistemas lineares multivariáveis
… utilizes the Invariant Factors and the Rational Canonical Form of a matrix. Necessary and sufficient conditions are given for the input-state-output decoupling of the system. System controllability and observability are studied in this framework. Although the decoupling scheme is developed for …
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Impurity asymmetries in the pedestal region of the Alcator C-Mod Tokamak
… at the LFS and HFS are compared to the canonical form for particle flow velocity within the flux surface of a tokamak. Within the error bars of the measurement, agreement is found with the canonical form. The implications of exact matches to the canonical form are low radial transport, …
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Sparse Bayesian information filters for localization and mapping
This thesis formulates an estimation framework for Simultaneous Localization and Mapping (SLAM) that addresses the problem of scalability in large environments. We describe an estimation-theoretic algorithm that achieves significant gains in computational efficiency while maintaining consistent …
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Processing techniques for partial tree-pattern queries on XML data
… querying multiple data sources which structure information differently. Recently, a class of queries, called Partial Tree-Pattern Queries (PTPQs) was identified. A central feature of PTPQs is that the structure can be specified fully, partially, or not at all in a query. For this reason. PTPQs can …
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Pole-placement with minimum effort for linear multivariable systems
… of the design lies in obtaining a direct transformation of the system matrices into a modified controllable canonical form. Two realizations are identified, and the algorithms to obtain them are derived. In both cases, the transformation matrix has some degrees of freedom by tuning a scalar or …
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Conceptual design of wave energy converters
… using the mechanical circuit framework to transform a linear representation of any wave energy converter into an equivalent single body absorber, or canonical form, through the systematic application of Thévenin’s theorem. Once the canonical form for a WEC has been established, criteria …
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Techniques for discrete, time domain system identification
… space model in a pseudo controllable/observable canonical form. The second method is a computational simplification of the Eigensystem Realization Algorithm using pseudo observability and controllability indices. The third algorithm tested is the Pseudo Linear Identification Algorithm (PLID). The …
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Against The World, Against Life: The Use and Abuse of the Autobiographical Genre in the Works of Fernando Vallejo
… as El rio del tiempo. Lejeune has shown that the canonical form of autobiography is characterized by the equation author=narrator=character. However, if we apply this clear-cut definition to Vallejo's book, a series of question arise: Who is speaking in his novels? Can we unequivocally attribute …
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A Third-order Differential Steering Robot And Trajectory Generation In The Presence Of Moving Obstacles
… algorithm. The existence of a chained form transformation so that the robot's model can be control in canonical form will be analyzed and proved. A trajectory generation for obstacles avoidance will be derived, simulated, and implemented. A specific PC based control algorithm will be …
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Aspects of segmental phonology and Chinese syllable structure
… template of a language can be more than just a canonical form; it can be a fixed structure which must be fully instantiated in each surface syllable.
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Fundamental limits of wideband localization
… this paper, we investigate the localization performance of wideband networks and proposed a performance measure called the squared position error bound (SPEB) to characterize the localization accuracy. We derive the SPEB succinctly by applying the notion of equivalent Fisher information (EFI). …
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Model order reduction of linear dynamic systems with application to power system control
… single input system and then choosing a canonical structure for the simplified model. The Schwarz canonical form is selected and advantage is taken of the special properties of the Schwarz form. The simplification of systems having unstable modes is then considered. A technique for …
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A geometric analysis of model reduction of linear systems
… and observability can provide this information. Balanced, Jordan canonical form, and dual GHR representations are shown to be state space realizations which naturally identify the reducing subspaces based on these measures. Several results unifying these methods are given. In another …
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Large-area visually augmented navigation for autonomous underwater vehicles
… (AUVs) while exploiting the inertial sensor information that is routinely available on such platforms. We adopt a systems-level approach exploiting the complementary aspects of inertial sensing and visual perception from a calibrated pose-instrumented platform. This systems-level strategy …
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Fast time domain simulation for large order hybrid systems
… subsystems, simulates them with state transition formula and superposes the responses by using the linearity property of LTI systems. A similarity transformation can first be employed to obtain the modal canonical form of the system. The modal form can then be divided into subsystems with …
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Sparse Bayesian information filters for localization and mapping
This thesis formulates an estimation framework for Simultaneous Localization and Mapping (SLAM) that addresses the problem of scalability in large environments. We describe an estimation-theoretic algorithm that achieves significant gains in computational efficiency while maintaining consistent …
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Roles of gap junctions in neuronal networks
… theta neurons. A single theta neuron model is a canonical form of Type I neural oscillator that yields a very low frequency oscillation. The coupled system also yields a very low frequency oscillation in the sense that the ratio of two cells' spiking frequencies obtains the values from a very …
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An extension-oriented compiler
… XSTs in terms of the original program syntax; canonicalizers, which put XSTs into a canonical form to extend the reach of syntax patterns; and attributes, a lazy computation mechanism to structure analyses on XSTs and allow extensions to cooperate. We have implemented these interfaces in a …
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Computation of upper and lower bounds in limit analysis using second-order cone programming and mesh adaptivity
… exact collapse multiplier is presented, with a formulation that explicitly considers the exact convex yield condition. The approach consists of two main steps. First, the continuous problem, under the form of the static principle, is discretized twice (one per bound) by means of different …
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