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 1199 for “"observer"”.
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Structure-Inspired Disturbance Observer Design and Disturbance Observer-Based Control/estimation
… two topics: (1) structure-inspired disturbance observer design and (2) disturbance observer-based control/estimation. The disturbance is defined as the discrepancy between a model and the system the model represents. A disturbance observer is an algorithm that generates an estimate of the …
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The Benevolent Ideal Observer Theory
… theory the response-dependent benevolent ideal observer theory or BIORD.</p><p>Although the way in which I express and argue for BIORD is original and unique, the core of the theory is old. In chapter 1, I explore these historical roots. The notion that moral value depends, in some sense, upon …
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The hidden-observer and memory creation
… to investigate the relation between hidden-observer reports and pseudomemory. The study also investigated the rates of hidden-observer responses in age regression. During the screening session subjects were tested on (a) the Tellegen absorption scale (Tellegen, 1980, 1982), (b) The imagery …
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Nonparticipant observer recall of videotaped conversations : the effects of observer sex, gender stereotypicality of conversation, and prior knowledge
Forty undergraduate psychology students, 20 male and 20 female, were asked to recall a videotaped conversation after a first and second viewing. There were two versions of the conversation: Gender stereotypical and gender atypical. The generalization of three common findings in memory research to …
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On Observer-Based Control of Nonlinear Systems
… the combination of separately designed state observers and state feedback controllers does not preserve performance, robustness, or even stability of each of the separate designs. In this thesis, the problems of observer design and observer-based control for nonlinear systems are addressed. …
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Observer-based fault detection for nuclear reactors
… are derived from fundamental theories on system observers. Different types of fault- actuator fault, sensor fault, and system dynamics fault can be detected and localized by studying the asymptotic response of an error signal constructed from the system inputs, system outputs, and observer …
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Nonlinear Sliding Mode Observer Applied to Microalgae Growth
… of ongoing research, especially application of observer theory to estimate internal parameters that are not easily measured in algal systems. Linear observer theory has generally been applied to algae growth systems to estimate internal parameters that are beyond hardware sensor capabilities, …
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Observability and observer design for switched linear systems
… perturbations to system matrices that causes observer infeasibility (with respect to the Frobenius norm). This robustness framework is sufficiently general to solve related robustness problems including controllability, stabilizability, and detectability.</p> <p>Having established feasibility, …
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Unknown input observer approaches to robust fault diagnosis
… (FDI/FDD) techniques using the unknown input observer (UIO) methodology. Using the UI de-coupling philosophy to tackle the robustness issue, a set of novel fault estimation (FE)-oriented UIO approaches are developed based on the classical residual generation-oriented UIO approach considering …
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Observer variation in detecting lymphadenopathy on chest radiography
Objective. To assess inter- and intra-observer agreement in the detection of lymphadcnopathy on chest radiography in children at risk for tuberculosis. Methods Dianostic test. Chest radiography using antero-posterior and lateral films. Observers. Four paediatric pulmonologists independently viewing …
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Observer reactions to victims: an equity theory approach
… theory, learning of victimization threatens an observer's sense of equity. Helping (in the present case, compensation) is only one way of reducing inequity; if other methods of inequity reduction are used (in this case, perpetrator punishment), equity may be restored without the victim being …
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Observer based active fault tolerant control of descriptor systems
… system approach has an integrated controller and observer design strategy offering better design flexibility compared with the equivalent approach using a standard state space system. An extended state observer (ESO) is developed to achieve state and fault estimation based on a joint linear matrix …
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Observer-based robust fault estimation for fault-tolerant control
… and FTC performance. Hence, the proposed robust observer-based fault estimator schemes are combined with several control methods to achieve the desired system performance and robust active fault tolerance. The controller approaches involve concepts of output feedback control, adaptive control, …
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Observer Position Detector for the Stereomatrix Three-Dimensional Displaysystem
Made available in DSpace on 2014-12-10T19:07:08Z (GMT). No. of bitstreams: 1 7317361.pdf: 1854885 bytes, checksum: 2d1495a6401564c029db1d02895d7374 (MD5) Previous issue date: 1972
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Observer based fault detection in DC-DC power converters
Power electronics today are limited in their operational lifetimes, which can have negative consequences for critical systems which depend on power electronic to stay functional. To help mitigate the effects of system failures due to power electronics, a fault detection filter has been implemented …
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A multisensory observer model for human spatial orientation perception
Quantitative "observer" models for spatial orientation and eye movements have been developed based on 1-G data from humans and animals (e.g. Oman 1982, 1991, Merfeld, et al 1993, 2002; Haslwanter 2000, Vingerhoets 2006). These models assume that the CNS estimates "down", head angular velocity and …
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A state observer for the permanent-magnet synchronous motor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.
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Nonlinear Control and Robust Observer Design for Marine Vehicles
A robust nonlinear observer, utilizing the sliding mode concept, is developed for the dynamic positioning of ships. The observer provides the estimates of linear velocities of the ship and bias from the slowly varying environmental loads. It also filters out wave frequency motion to avoid wear of …
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Observer and target sexual arousal effects on heterosexual interpersonal behavior
Typescript (photocopy).
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Towards an independent observer of screening mammograms: detection of calcifications
Contains fulltext : 200483.pdf (Publisher’s version ) (Open Access)
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