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Relevant bibliographies by topics / Transient Signal Analysis / Dissertations / Theses

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Dissertations / Theses on the topic 'Transient Signal Analysis'

Author: Grafiati

Published: 12 October 2024

Last updated: 31 July 2025

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1

Larson, P. T., and D. A. Sheaffer. "TRANSIENT REDUCTION ANALYSIS using NEURAL NETWORKS (TRANN)." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608892.

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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California<br>Our telemetry department has an application for a data categorization/compression of a high speed transient signal in a short period of time. Categorization of the signal reveals important system performance and compression is required because of the terminal nature of our telemetry testing. Until recently, the hardware for the system of this type did not exist. A new exploratory device from Intel has the capability to meet these extreme requirem

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2

Jeong, Soonho. "Wideband signal analysis and synthesis applied to electromagnetic transient waveforms." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA308099.

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Rudraraju, Seetharama raju. "SMALL SIGNAL AND TRANSIENT STABILITY ANALYSIS OF MVDC SHIPBOARD POWER SYSTEM." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11052009-170217/.

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Recent developments in high power rated Voltage Source Converters (VSCs) have resulted in their successful application in Multi-Terminal HVDC (MTDC) transmission systems and also have potential in the Medium Voltage DC (MVDC) distribution systems. This work presents the findings of stability studies carried out on a zonal MVDC architecture for the shipboard power distribution system. The stability study is confined to rotor angle stability of the power system, i.e. the transient and small signal stability analysis. The MTDC ring structure similar to MVDC shipboard power system was implemented

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Burnett, Ronald. "Transient current analysis for fault detection in large induction motors." Thesis, Robert Gordon University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318552.

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Chan, Weng Wa. "Transient and small signal analysis of PWM converters using average switch model." Thesis, University of Macau, 1999. http://umaclib3.umac.mo/record=b1445387.

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6

Alyami, Mohammad Manea. "Microcontroller-based transient signal analysis and distributed system for intelligent process monitoring." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54783/.

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The research presented in this thesis considers the feasibility of utilising dsPICs (digital signal controllers) in the development of effective monitoring systems which have the capability to adapt to changes in operating conditions and can be quickly calibrated to suit a range of applications, thus helping to reduce the development time constraint. The capability of these monitoring solutions to detect and isolate faults occurring in pneumatic processes is investigated and their effectiveness verified. Three applications are considered gas pipe leakage, linear actuator operations and gripper

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Choi, Byungcho. "Large signal transient analysis of duty ratio controlled DC-to-DC converter." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43966.

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The large-signal transient response of duty ratio controlled dc-to-dc converters is investigated using the phase-plane technique. The transition pattern of large-signal trajectories is provided in terms of the circuit parameter and operating conditions. Several transient trajectories of practical interest including start-up, step input voltage change and step-load change are analyzed. The effect of large-signal characteristics of the feedback controller on the transient trajectory is presented.<br>Master of Science

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8

Chen, Zhihong. "It is possible to efficiently use wavelet packets for power system transient signal analysis." Doctoral thesis, Universite Libre de Bruxelles, 1998. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211980.

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Giacobbe, Martina. "Analysis of transient states in EMG signals with applications to robotic prostheses." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15861/.

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The purpose of this thesis is to analyze and classify EMG signals for prosthetic control. For transradial amputees the electrical signal of muscles is acquired, processed and classified with the final scope of moving a prosthetic hand. This signal has a first transient state related to the dynamic part of the movement starting from rest and a subsequent steady state which corresponds to the sustained and voluntary contraction. Up to now the classification has been performed only on the steady state, instead in this thesis we will include also the transient. The classification of the transient,

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10

Kathi, Lokesh. "Small-Signal Analysis of Non-isolated Cuk DC-DC Converter." Wright State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1598899911848989.

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Bernard, Cindy. "Caractérisation des phénomènes physiques par analyse parcimonieuse des signaux transitoires." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT090/document.

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Les signaux transitoires, de par leur unicité, sont très difficiles à caractériser. Ils se rencontrent partout et sont généralement le reflet d'un phénomène physique très complexe traduisant de nombreuses informations telles que le signal à l'origine, les effets de la propagation dans le milieu considéré et aussi les effets induits par les capteurs. Ils peuvent aussi bien correspondre à un phénomène de communication entre animaux, qu'être le reflet d'un défaut dans un système électrique ou hydraulique par exemple. Tout ceci rend leur étude très difficile, mais aussi primordiale. De nombreuses

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Franco, Samuel. "Searching for long transient gravitational waves in the LIGO-Virgo data." Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01062708.

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This thesis presents the results of the STAMPAS all-sky search for long transient gravitational waves in the 2005-2007 LIGO-Virgo data. Gravitational waves are perturbations of the space-time metric. The Virgo and LIGO experiments are designed to detect such waves. They are Michelson interferometers with 3 km and 4 km long arms, whose light output is altered during the passage of a gravitational wave.Until very recently, transient gravitational wave search pipelines were focused on short transients, lasting less than 1 second, and on binary coalescence signals. STAMPAS is one of the very first

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13

Bu, Siqi. "Probabilistic small-signal stability analysis and improved transient stability control strategy of grid-connected doubly fed induction generators in large-scale power systems." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580121.

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Growing numbers of large-scale wind farms have been recently established and connected to conventional power grid. With the rising level of penetration, the impact of wind power sources on the grid has extended from simple power quality problems to power grid security and stability, frequency and peak regulation, and economic dispatch issues. Therefore, it has significant theoretical and practical values to comprehensively investigate the effect of grid-connected wind power sources on the power system stability. In order to study the influence of considerable stochastic characteristic of wind

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Kang, Pengju. "On-line condition assessment of power transformer on-load tap-changers : transient vibration analysis using wavelet transform and self organising map." Thesis, Queensland University of Technology, 2000.

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15

Birleanu, Florin-Marian. "Construction des espaces de représentation RPA pour l'analyse des signaux transitoires." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00762428.

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Même s'ils n'appartiennent pas a une classe de signaux bien définie, les signaux transitoires se retrouvent dans plusieurs domaines pratiques très différents (comme les signaux médicaux et les signaux utilisés dans des systèmes de télécommunications), donc le développement des outils robustes et efficients pour faire leur analyse est un objectif important dans le traitement du signal. En particulier, cette thèse s'est concentrée surtout sur la résolution de quelques problèmes de traitement du signal posés par l'investigation ultrasonore de l'eau dans des conduites. Cependant, ce contexte appli

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Duboisset-Chareyre, Laure. "Analyse bispectrale de signaux réels : application à la détection de transitoires." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0168.

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En lutte sous-marine, des l'acquisition d'un signal en sortie d'une antenne sonar, la premiere question qui se pose est : <<<>le signal comporte-t-il de l'information ou ne s'agit-il que de bruit?<>>> cette question est determinante pour la securite de l'equipage et du batiment. Depuis peu, on s'interesse a la detection des bruits transitoires. Signaux brefs, emis lors de manoeuvres, ils sont souvent moins discrets que les bruits rayonnes classiques mais leur caractere fugitif les avait rendus jusque-la moins remarquables. Les methodes classiques de detection sont souvent mal adaptees a ce typ

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Nastasiu, Dragos-Florin. "Développement de solutions pour l’identification (THID) et l’authentification par des approches non intrusives dans le domaine THz." Electronic Thesis or Diss., Chambéry, 2024. http://www.theses.fr/2024CHAMA007.

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L'imagerie THz est un domaine émergent depuis les avancées technologiques en termes d'émission de rayonnement THz et d'équipement de détection. L'objectif principal de la thèse est de contribuer et d'améliorer les systèmes d'imagerie THz, de la reconstruction et de l'analyse d'images aux tâches de classification d'images. Dans la première partie de la thèse, nous nous attaquons au défi de l'estimation de l'amplitude dans des conditions de bruit idéal et multiplicatif. Le bruit multiplicatif déforme la phase et introduit des artefacts complexes, tels que la perte d'information sur les contours

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Bennia, Abdelhak. "Optimal filters for deconvolution of transient signals in the presence of noise." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-09162005-115009/.

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Vedreño, Santos Francisco Jose. "Diagnosis of electric induction machines in non-stationary regimes working in randomly changing conditions." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/34177.

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Tradicionalmente, la detección de faltas en máquinas eléctricas se basa en el uso de la Transformada Rápida de Fourier ya que la mayoría de las faltas pueden ser diagnosticadas con ella con seguridad si las máquinas operan en condiciones de régimen estacionario durante un intervalo de tiempo razonable. Sin embargo, para aplicaciones en las que las máquinas operan en condiciones de carga y velocidad fluctuantes (condiciones no estacionarias) como por ejemplo los aerogeneradores, el uso de la Transformada Rápida de Fourier debe ser reemplazado por otras técnicas. La presente tesis desarrolla u

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Bérail, Sylvain. "Nouvelles stratégies d’introduction d’échantillon en MC-ICP-MS pour la bio-géochimie isotopique du mercure en ultra-trace." Thesis, Pau, 2018. http://www.theses.fr/2018PAUU3019/document.

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En complément des analyses de concentration et de spéciation, les analyses des isotopes stables du mercure par MC-ICP-MS sont à l’heure actuelle un outil majeur pour tracer les sources et les transformations de cet élément dans l’environnement. Cette thèse propose le développement de techniques de pré-concentrations couplées au MC-ICP-MS afin de réaliser des analyses isotopiques de mercure au niveau du ng.L-1 (Ultra-trace). La stratégie de pré-concentration en ligne va générer des signaux transitoires courts dont la gestion en MC-ICP-MS représente un réel défi. Afin d’y répondre, une méthode d

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Chen, Zhidong. "Machine condition monitoring based on the analysis of transient vibration signals." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/NQ58400.pdf.

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22

Muševič, Sašo. "Non-stationary sinusoidal analysis." Doctoral thesis, Universitat Pompeu Fabra, 2013. http://hdl.handle.net/10803/123809.

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Muchos tipos de señales que encontramos a diario pertenecen a la categoría de sinusoides no estacionarias. Una gran parte de esas señales son sonidos que presentan una gran variedad de características: acústicos/electrónicos, sonidos instrumentales harmónicos/impulsivos, habla/canto, y la mezcla de todos ellos que podemos encontrar en la música. Durante décadas la comunidad científica ha estudiado y analizado ese tipo de señales. El motivo principal es la gran utilidad de los avances científicos en una gran variedad de áreas, desde aplicaciones médicas, financiera y ópticas, a procesado de rad

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Santos, Rui Pedro Silvestre dos. "Time series morphological analysis applied to biomedical signals events detection." Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/10227.

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Dissertation submitted in the fufillment of the requirements for the Degree of Master in Biomedical Engineering<br>Automated techniques for biosignal data acquisition and analysis have become increasingly powerful, particularly at the Biomedical Engineering research field. Nevertheless, it is verified the need to improve tools for signal pattern recognition and classification systems, in which the detection of specific events and the automatic signal segmentation are preliminary processing steps. The present dissertation introduces a signal-independent algorithm, which detects significant ev

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Plotnikov, Alexei. "Beiträge zur räumlich aufgelösten Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie unter besonderer Berücksichtigung von Schichtsystemen und Supraleitern." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1098260409140-71951.

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Die vorliegende Arbeit stellt die Ergebnisse der methodologischen Entwicklung räumlich aufgelöster Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie dar. Eine neue Behandlung zur Quantifizierung transienter analytischer Signale wurde für die Wiederherstellung von Konzentrationsprofilen vorgeschlagen. Die Anwendung der entwickelten Modelle auf die räumlich aufgelöste Analyse mittels LA-ICP-MS ermöglicht verbesserten Informationsgewinn und lässt dadurch eine höhere räumliche Auflösung erreichen. Die Anwendbarkeit der LA-ICP-MS für die räumlich aufgelöste Bestimmung der Stöchiometrie

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PENHA, ROSANI M. L. da. "Analise de sinais em regime transiente aplicando a tecnica de WAVELET." reponame:Repositório Institucional do IPEN, 1999. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10773.

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Made available in DSpace on 2014-10-09T12:43:51Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:10:10Z (GMT). No. of bitstreams: 1 06767.pdf: 4710608 bytes, checksum: 0df801946c2e3b5907a9d77d5ff698e5 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Plotnikov, Alexei. "Beiträge zur räumlich aufgelösten Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie unter besonderer Berücksichtigung von Schichtsystemen und Supraleitern." Doctoral thesis, Technische Universität Dresden, 2003. https://tud.qucosa.de/id/qucosa%3A24383.

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Die vorliegende Arbeit stellt die Ergebnisse der methodologischen Entwicklung räumlich aufgelöster Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie dar. Eine neue Behandlung zur Quantifizierung transienter analytischer Signale wurde für die Wiederherstellung von Konzentrationsprofilen vorgeschlagen. Die Anwendung der entwickelten Modelle auf die räumlich aufgelöste Analyse mittels LA-ICP-MS ermöglicht verbesserten Informationsgewinn und lässt dadurch eine höhere räumliche Auflösung erreichen. Die Anwendbarkeit der LA-ICP-MS für die räumlich aufgelöste Bestimmung der Stöchiometrie

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Beak, Byungho, and Byungho Beak. "Systematic Analysis and Integrated Optimization of Traffic Signal Control Systems in a Connected Vehicle Environment." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/626304.

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Traffic signal control systems have been tremendously improved since the first colored traffic signal light was installed in London in December 1868. There are many different types of traffic signal control systems that can be categorized into three major control types: fixed-time, actuated, and adaptive. Choosing a proper traffic signal system is very important since there exists no perfect signal control strategy that fits every traffic network. One example is traffic signal coordination, which is the most widely used traffic signal control system. It is believed that performance measures,

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Nasri, Amin. "On the Dynamics and Statics of Power System Operation : Optimal Utilization of FACTS Devicesand Management of Wind Power Uncertainty." Doctoral thesis, KTH, Elektriska energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154576.

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Nowadays, power systems are dealing with some new challenges raisedby the major changes that have been taken place since 80’s, e.g., deregu-lation in electricity markets, significant increase of electricity demands andmore recently large-scale integration of renewable energy resources such aswind power. Therefore, system operators must make some adjustments toaccommodate these changes into the future of power systems.One of the main challenges is maintaining the system stability since theextra stress caused by the above changes reduces the stability margin, andmay lead to rise of many undesira

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Miani, Andrea. "Agnostic method to detect low energetic signals nearby a gravitational wave transient from a binary black hole system." Doctoral thesis, Università degli studi di Trento, 2022. http://hdl.handle.net/11572/354941.

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The first detection of a gravitational wave (GW) enabled our observation of the Universe through a revolutionary messenger and unveiled phenomena that are occurring in a range of very strong gravitational fields and relativistic velocities. These physical regimes, previously inaccessible to humankind, can now be studied. In particular, the discoveries of an unexpected population of stellar-mass binary black holes (BBH), and unexpected masses for binary neutron star (BNS) components have both pointed to new astrophysics, and to unprecedented tests of the general relativity theory. This the

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Qoria, Taoufik. "Nouvelles lois de contrôle pour former des réseaux de transport avec 100% d’électronique de puissance." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAE041.

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Le développement rapide de la production d'énergie renouvelable intermittente et des liaisons HVDC entraîne une augmentation importante du taux de pénétration des convertisseurs statiques dans les réseaux de transport. Aujourd'hui, les convertisseurs statiques ont pour fonction principale d'injecter une puissance dans le réseau tout en s'appuyant sur des machines synchrones qui garantissent tous les besoins du système électrique. Ce mode de fonctionnement est appelé «Grid-following». Les convertisseurs contrôlés en Grid-following ont plusieurs limitations: leur incapacité à fonctionner en mode

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Nour, Fathy E. "The analysis of vibration signals during induction motor starting transients with a view to early fault detection." Thesis, Robert Gordon University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294706.

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Vasile, Costin. "Characterization & detection of electric Arc Detection in Low-Voltage IEC Networks." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT008.

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Contexte & Motivation:Les installations électriques des bâtiments se détériorent au fil du temps et leur gravité et leur taux de détérioration dépendent de facteurs environnementaux (chaleur, humidité, réactions chimiques corrosives et vieillies isolations) ou d'actions externes indésirables telles que la manipulation humaine erronée, qui conduit à des charges ou des câbles/réseaux endommagés.L'European Fire Academy (EFA) et de nombreuses compagnies d'assurance indiquent que 25% des incendies de bâtiments sont d'origine électrique. Ces incendies peuvent être déclenchés par des circuits sur

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Sheffield, Michael Harmon. "Impacts of Changing the Transit Signal Priority Requesting Threshold on Bus Performance and General Traffic: A Sensitivity Analysis." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8521.

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A sensitivity analysis was performed on the transit signal priority (TSP) requesting threshold to evaluate its impact on bus performance and general traffic. Two distinct bus routes were evaluated to determine the optimal requesting threshold that would balance the positive impacts on bus performance with the negative impacts on general traffic. Route 217, a conventional bus route, and the Utah Valley Express (UVX), a bus rapid transit line, utilize a dedicated short-range communication (DSRC)-based TSP system as part of their normal, day-to-day operations. Using field-generated data exclusive

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Feng, Wei. "Analyses of Bus Travel Time Reliability and Transit Signal Priority at the Stop-To-Stop Segment Level." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1832.

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Transit travel time is affected by many factors including traffic signals and traffic condition. Transit agencies have implemented strategies such as transit signal priority (TSP) to reduce transit travel time and improve service reliability. However, due to the lack of empirical data, the joint impact of these factors and improvement strategies on bus travel time has not been studied at the stop-to-stop segment level. This study utilizes and integrates three databases available along an urban arterial corridor in Portland, Oregon. Data sources include stop-level bus automatic vehicle location

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Bayle, Jean-Baptiste. "Simulation and Data Analysis for LISA : Instrumental Modeling, Time-Delay Interferometry, Noise-Reduction Permormance Study, and Discrimination of Transient Gravitational Signals." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7123.

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Laser Interferometer Space Antenna est une mission de l'Agence Spatiale Européenne visant à mesurer les ondes gravitationnelles dans le domaine millimétrique. Trois satellites en formation triangulaire autour du Soleil s'échangent des faisceaux lasers. Les variations de distances entre masses d'épreuve, dues aux ondes gravitationnelles, sont mesurées au picomètre près. Plusieurs algorithmes de réduction des bruits instrumentaux qui contaminent les mesures sont utilisés avant l'extraction des signaux gravitationnels.Afin d'évaluer la performance de ces algorithmes, nous étudions la manière dont

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Soares, Leonardo Bandeira. "Proposta e avaliação de técnicas para compressão de transitórios rápidos e análise tempo-frequência de distúrbios em redes elétricas AC." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/80506.

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Este trabalho trata de conceitos relacionados à qualidade da Energia Elétrica (EE) e, neste contexto, apresenta a proposta de técnicas para a compressão da representação de transitórios rápidos e da análise tempo-frequência de distúrbios elétricos em geral. A qualidade da Energia Elétrica é medida pelo coeficiente de desvios que os sinais de tensão e corrente apresentam em relação ao sinal senoidal ideal. Tais desvios são denominados de distúrbios, podendo ser classificados como quase estacionários (e.g. distorção de harmônicas) e eventos (e.g. transitórios rápidos). No contexto de EE, os tran

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Moraes, Francisco Jose Vicente de. "Teoria wavelet aplicada a analise de vibrações." [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264596.

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Orientador: Hans Ingo Weber<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-07-21T16:53:45Z (GMT). No. of bitstreams: 1 Moraes_FranciscoJoseVicentede_M.pdf: 6703520 bytes, checksum: aa677f747599094668ea06d0f7536ad9 (MD5) Previous issue date: 1996<br>Resumo: O conhecimento do comportamento dinâmico de equipamentos é importante, seja para o desenvolvimento e otimização de projetos ou para o monitoramento e diagnóstico de falhas de operação. Técnicas de processamento para extrair dos complicados sinais de vibraç

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Boehm, Christian Reiner. "Gene expression control for synthetic patterning of bacterial populations and plants." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267842.

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The development of shape in multicellular organisms has intrigued human minds for millenia. Empowered by modern genetic techniques, molecular biologists are now striving to not only dissect developmental processes, but to exploit their modularity for the design of custom living systems used in bioproduction, remediation, and regenerative medicine. Currently, our capacity to harness this potential is fundamentally limited by a lack of spatiotemporal control over gene expression in multicellular systems. While several synthetic genetic circuits for control of multicellular patterning have been r

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Pan, Shih-yu, and 潘時瑜. "Analysis of Transient Pressure Testing Data Using Digital Signal Processing." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/32019853375982637110.

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博士<br>國立成功大學<br>資源工程學系碩博士班<br>96<br>The purpose of this study is to utilize the convolution and deconvolution to analyze the pressure testing data, including obtaining source functions with various boundary conditions from simulations and using source functions to study the characteristics of source functions of a producing well in the different types of reservoirs. The solution of flowing fluid in the reservoir (or solutions of the diffusivity equation) can be represented by the relationship among the pressure, flow rate, and source function. With such relationship, in applying either convolu

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Wang, Chun-Chi, and 王俊棋. "Signal analysis of transient evoked otoacoustic emissions from Meniere's disease patients." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8qcypc.

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碩士<br>國立清華大學<br>電機工程學系所<br>106<br>Otoacoustic emission (OAE) has the property for personal biometric identification. It can be measured in human's ear anytime, anywhere, and similar results can be got from the same ear. In the past, OAE usually measured at audiometer testing room and rather stable results would be obtained. In this study, we developed a system for transient evoked otoacoustic emission (TEOAE) measurement for the patients of Ménière disease (MD) at the hospital. TEOAE data were measured in a normal room, and the signal-to-noise ratio was 13.72 dB SPL in average. After giving

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Chi, Huang Chun, and 黃俊祺. "A study on the Real-Time Analysis of Transient Signal with Wavelet Theory." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/14581236653164256201.

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碩士<br>國立臺灣大學<br>造船及海洋工程學研究所<br>89<br>Signal detection is an important topic to increase signal to noise ratio and to execute the real-time monitoring. In present study, the wavelets theory is used to analyze the transient signal. The character of localization and the multiresolution capability of the wavelets theory can separate the signal and noise effectively. Thus it is suitable for the real-time analysis. In this work, a real-time measuring system that use SIMULINK® and C++ software to build the wavelet model based on the TMS320C32 Board is established. Some simple

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Shin, Yong June. "Theory and application of time-frequency analysis to transient phenomena in electric power and other physical systems." Thesis, 2004. http://hdl.handle.net/2152/1261.

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Venkitaraman, Arun. "Generalized Analytic Signal Construction and Modulation Analysis." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3316.

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This thesis deals with generalizations of the analytic signal (AS) construction proposed by Gabor. Functional extensions of the fractional Hilbert Transform (FrHT) are proposed using which families of analytic signals are obtained. The construction is further applied in the design of a secure communication scheme. A demodulation scheme is developed based on the generalized AS, motivated by perceptual experiments in binaural hearing. Demodulation is achieved using a signal and its arbitrary phase-shifted version which, in turn translated to demodulation using a pair of flat-top bandpass filter

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Venkitaraman, Arun. "Generalized Analytic Signal Construction and Modulation Analysis." Thesis, 2013. http://etd.iisc.ernet.in/2005/3316.

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This thesis deals with generalizations of the analytic signal (AS) construction proposed by Gabor. Functional extensions of the fractional Hilbert Transform (FrHT) are proposed using which families of analytic signals are obtained. The construction is further applied in the design of a secure communication scheme. A demodulation scheme is developed based on the generalized AS, motivated by perceptual experiments in binaural hearing. Demodulation is achieved using a signal and its arbitrary phase-shifted version which, in turn translated to demodulation using a pair of flat-top bandpass filter

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Priyamvada, Indla Rajitha Sai. "Analysis and Enhancement of Stability of Power Systems with Utility-scale Photovoltaic Power Plants." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5566.

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Owing to the negative impact of carbon emissions on environment, power systems are experiencing a paradigm shift in power generation. The fossil fuel-based generators that utilize synchronous machines are increasingly being replaced by the renewables such as Photovoltaic (PV) generators. Utility-scale PV power plants are coming up in the various parts of the world. Power electronic interface, control strategies and lack of inherent rotational element are the main factors that distinguish PV generation from Synchronous Generators (SGs). In addition, the time constants of the PV control loops an

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Chou, Hsiang-Wen, and 周相文. "Detection of Transient Signals Using Higher-Order Spectra Analysis." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/09761984312973137941.

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碩士<br>國立海洋大學<br>電子工程學系<br>82<br>The received signals in Sonar, Radar, and many other surveillance systems are generally expressed in non-stationary non-Gaussian stochastic processes, and they must be processed by appropriate time-frequency analysis methods in order to obtain correct information, especailly for the weak (low or negative SNR) non-stationary transient signals. The objective of this thesis is to search for pertinent processing algorithms for detection and identification of tran

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Binns, Malcolm Angus. "Some aspects of segmented regression analysis relevant to temporal localisation in transient neuroelectric signals." 2007. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=478963&T=F.

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Shenoy, Ravi R. "Spectral And Temporal Zero-Crossings-Based Signal Analysis." Thesis, 2016. https://etd.iisc.ac.in/handle/2005/2660.

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We consider real zero-crossing analysis of the real/imaginary parts of the spectrum, namely, spectral zero-crossings (SZCs). The two major contributions are to show that: (i) SZCs provide enable temporal localization of transients; and (b) SZCs are suitable for modeling transient signals. We develop a spectral dual of Kedem’s result linking temporal zero-crossing rate (ZCR) to the spectral centroid. The key requirement is stationarity, which we achieve through random-phase modulations of the time-domain signal. Transient signals are not amenable to modelling in the time domain since they are b

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Shenoy, Ravi R. "Spectral And Temporal Zero-Crossings-Based Signal Analysis." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2660.

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We consider real zero-crossing analysis of the real/imaginary parts of the spectrum, namely, spectral zero-crossings (SZCs). The two major contributions are to show that: (i) SZCs provide enable temporal localization of transients; and (b) SZCs are suitable for modeling transient signals. We develop a spectral dual of Kedem’s result linking temporal zero-crossing rate (ZCR) to the spectral centroid. The key requirement is stationarity, which we achieve through random-phase modulations of the time-domain signal. Transient signals are not amenable to modelling in the time domain since they are b

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CHANG, YU-SIN, and 張玉信. "The Transient Analysis of the Organic Light-Emitting Diode Driven by Pulse-Width Modulation Signals." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/k2rwhy.

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碩士<br>國立臺北科技大學<br>光電工程系<br>107<br>This thesis research applies Pulse-Width Modulation (PWM) technique to investigate the feasibility of reducing current-surge phenomena as an organic light-emitting diode (OLED) is driven by pulse-wise signal. The occurrence of current-surge is mainly caused by the capacitive effect of an OLED in which the organic layers are sandwiched by anode and cathode electrodes. We used PSPICE simulation tool to reproduce the current-surge phenomena by using the equivalent-circuit model of an OLED and calculate the differences of peak-to-peak values before and after apply

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