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Dissertations / Theses on the topic 'Uniform sampling'

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Published: 4 June 2021
Last updated: 26 July 2025

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1

khorvash, Massih. "On uniform sampling of cliques." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/13923.

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The problem that we are addressing in this thesis is the problem of sampling uniformly the cliques of a target size k of any given graph. As a natural approach for solving this problem, we used the already available state-of-the-art heuristic MAX-CLIQUE solvers. The heuristic MAX-CLIQUE algorithms, which we used for this task, have k-CLIQUE solvers as their subroutines. This thesis therefore examines how uniformly some of the state-of-the-art stochastic local search MAX-CLIQUE algorithms sample target cliques of graphs, and suggests various methods to improve their sampling performance. We als
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2

Luo, Chenchi. "Non-uniform sampling: algorithms and architectures." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45873.

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Modern signal processing applications emerging in telecommunication and instrumentation industries have placed an increasing demand for ADCs with higher speed and resolution. The most fundamental challenge in such a progress lies at the heart of the classic signal processing: the Shannon-Nyquist sampling theorem which stated that when sampled uniformly, there is no way to increase the upper frequency in the signal spectrum and still unambiguously represent the signal except by raising the sampling rate. This thesis is dedicated to the exploration of the ways to break through the Shannon-Nyquis
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3

Legg, Jonathan Andrew. "Synthetic aperture radar using non-uniform sampling." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phl513.pdf.

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4

Eng, Frida. "Non-Uniform Sampling in Statistical Signal Processing." Doctoral thesis, Linköping : Department of Electrical Engineering, Linköpings universitet, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8480.

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5

Monemizadeh, Morteza [Verfasser]. "Non-uniform Sampling in Clustering and Streaming / Morteza Monemizadeh." Dortmund : Universitätsbibliothek Technische Universität Dortmund, 2011. http://d-nb.info/101156971X/34.

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6

Khan, Mohammad Samir. "Strategies for non-uniform rate sampling in digital control theory." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6321.

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This thesis is about digital control theory and presents an account of methods for enabling and analysing intentional non-uniform sampling in discrete compensators. Most conventional control algorithms cause numerical problems where data is collected at sampling rates that are substantially higher than the dynamics of the equivalent continuous-time operation that is being implemented. This is of relevant interest in applications of digital control, in which high sample rates are routinely dictated by the system stability requirements rather than the signal processing needs. Considerable recent
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7

Hörmann, Wolfgang, and Josef Leydold. "Sampling from Linear Multivariate Densities." WU Vienna University of Economics and Business, 2009. http://epub.wu.ac.at/3192/1/Report111.pdf.

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It is well known that the generation of random vectors with non-independent components is difficult. Nevertheless, we propose a new and very simple generation algorithm for multivariate linear densities over point-symmetric domains. Among other applications it can be used to design a simple decomposition-rejection algorithm for multivariate concave distributions.<br>Series: Research Report Series / Department of Statistics and Mathematics
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Perez, Miguel E. M. Eng Massachusetts Institute of Technology. "A hardware platform to test analog-to-information conversion and non-uniform sampling." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/85482.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 121-123).<br>The Nyquist-Shannon sampling theorem tells us that in order to fully recover a band-limited signal previously converted to discrete data points, said signal must have been sampled at a frequency greater than twice its bandwidth. This theorem puts a burden on circuits like ADCs, in the sense that the higher the bandwidth of a signal, the faster the ADC must be by a factor of at
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9

Wellens, Jake(Jake Lee). "Assorted results in boolean function complexity, uniform sampling and clique partitions of graphs." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/126937.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 107-112).<br>This thesis consists of three disparate parts. In the first, we generalize and extend recent ideas of Chiarelli, Hatami and Saks to obtain new bounds on the number of relevant variables for a boolean function in terms of its degree, its sensitivity, and its certificate and decision tree complexities, and we also sharpen the best-known polynomial relationships between some of these complexity measures
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10

Leydold, Josef. "Automatic Sampling with the Ratio-of-uniforms Method." Department of Statistics and Mathematics, Abt. f. Angewandte Statistik u. Datenverarbeitung, WU Vienna University of Economics and Business, 1999. http://epub.wu.ac.at/84/1/document.pdf.

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Applying the ratio-of-uniforms method for generating random variates results in very efficient, fast and easy to implement algorithms. However parameters for every particular type of density must be precalculated analytically. In this paper we show, that the ratio-of-uniforms method is also useful for the design of a black-box algorithm suitable for a large class of distributions, including all with log-concave densities. Using polygonal envelopes and squeezes results in an algorithm that is extremely fast. In opposition to any other ratio-of-uniforms algorithm the expected number of uniform r
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11

Ganzenmüller, Georg Clemens. "Simulation of vapour-liquid condensation in dipolar fluids and uniform sampling Monte Carlo algorithms." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3966.

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This works examines the question whether a vapour-liquid phase transition exists in systems of particles with purely dipolar interactions, a topic which has been the subject of a longstanding debate. Monte Carlo simulation results for two modi operandi to tackle this issue are presented. One approach examines the phase behaviour of fluids of charged hard dumbbells (CHD), each made up of two oppositely charged hard spheres with diameters σ and separation d. In the limit d/σ → 0, and with the temperature scaled accordingly, the system corresponds to dipolar hard spheres (DHS) while for larger va
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12

Rechner, Steffen [Verfasser]. "Markov Chain Monte Carlo algorithms for the uniform sampling of combinatorial objects / Steffen Rechner." Halle, 2018. http://d-nb.info/1161729674/34.

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13

Gemulla, Rainer. "Sampling Algorithms for Evolving Datasets." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1224861856184-11644.

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Perhaps the most flexible synopsis of a database is a uniform random sample of the data; such samples are widely used to speed up the processing of analytic queries and data-mining tasks, to enhance query optimization, and to facilitate information integration. Most of the existing work on database sampling focuses on how to create or exploit a random sample of a static database, that is, a database that does not change over time. The assumption of a static database, however, severely limits the applicability of these techniques in practice, where data is often not static but continuously evol
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14

Hörmann, Wolfgang, and Josef Leydold. "Importance Sampling to Accelerate the Convergence of Quasi-Monte Carlo." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2007. http://epub.wu.ac.at/284/1/document.pdf.

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Importance sampling is a well known variance reduction technique for Monte Carlo simulation. For quasi-Monte Carlo integration with low discrepancy sequences it was neglected in the literature although it is easy to see that it can reduce the variation of the integrand for many important integration problems. For lattice rules importance sampling is of highest importance as it can be used to obtain a smooth periodic integrand. Thus the convergence of the integration procedure is accelerated. This can clearly speed up QMC algorithms for integration problems up to dimensions 10 to 12. (author's
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15

黃俊賢 and Chun-yin Vong. "Performance study of uniform sampling digital phase-locked loopsfor [Pi]/4-differentially encoded quaternary phase-shift keying." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31221816.

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16

Traore, Samba. "Contribution à l'étude de l'échantillonnage non uniforme dans le domaine de la radio intelligente." Thesis, CentraleSupélec, 2015. http://www.theses.fr/2015SUPL0023/document.

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Nous proposons un nouveau schéma d’échantillonnage non uniforme périodique appelé Système d’Échantillonnage Non Uniforme en Radio Intelligente (SENURI). Notre schéma détecte la localisation spectrale des bandes actives dans la bande totale échantillonnée afin de réduire la fréquence moyenne d’échantillonnage, le nombre d’échantillons prélevé et par conséquent la consommation d’énergie au niveau du traitement numérique. La fréquence moyenne d’échantillonnage du SENURI dépend uniquement du nombre de bandes contenues dans le signal d’entrée x(t). Il est nettement plus performant, en termes d’erre
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Vong, Chun-yin. "Performance study of uniform sampling digital phase-locked loops for [Pi]/4-differentially encoded quaternary phase-shift keying /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20007164.

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18

SILVA, ândrio Zafalon da. "Padrões de Diversidade de Muscidae (Insecta, Diptera) na Planície Costeira do Rio Grande do Sul, Brasil." Universidade Federal de Pelotas, 2013. http://repositorio.ufpel.edu.br/handle/ri/2327.

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Made available in DSpace on 2014-08-20T14:31:30Z (GMT). No. of bitstreams: 1 dissertacao_andrio_zafalon_silva.pdf: 3030038 bytes, checksum: a10638c2996d28623646b9fa7980b243 (MD5) Previous issue date: 2013-07-05<br>The fragmentation of natural environments is a major concern among conservation ecologists nowadays, especially in areas with a great diversity of habitats as the coastal plains of Rio Grande do Sul. In order to provide the basis to the managers responsible for the maintenance of natural areas, as well as to develop the knowledge of the Muscidae family in the southern Brazil, thi
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19

Schlippenbach, Trixi Kristina von [Verfasser], and Wolfram [Akademischer Betreuer] Gronwald. "Optimization and Application of Non-Uniform Sampling for 2D NMR-Based Metabolomics / Trixi Kristina Freiin von Schlippenbach ; Betreuer: Wolfram Gronwald." Regensburg : Universitätsbibliothek Regensburg, 2018. http://d-nb.info/116380617X/34.

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20

Sun, Yi-Ran. "Generalized Bandpass Sampling Receivers for Software Defined Radio." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4009.

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21

Bouchain, Antoine. "Estimation spectrale parcimonieuse de signaux à échantillonnage irrégulier : application à l’analyse vibratoire d’aubes de turbomachines à partir de signaux tip-timing." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC029.

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Dans le cadre de la certification de ses moteurs d'hélicoptères, Safran Helicopter Engines réalise des essais en fonctionnement lors desquels les réponses vibratoires de turbomachines (compresseurs et turbines) sont mesurées. Les réponses vibratoires contiennent des modes (ou raies spectrales) dont les fréquences et amplitudes doivent être caractérisées. Les mesures sont réalisées par la technologie tip-timing qui permet d'observer les vibrations de toutes les pales d'un aubage en rotation.Cependant, la technologie tip-timing présente deux spécificités importantes. Premièrement, l'échantillonn
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22

Bouclon, Julien. "Spectrométrie de masse FT-ICR bidimensionnelle, développements et applications." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEE002/document.

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La spectrométrie de masse fournit deux types d’informations : la masse moléculaire des molécules présentes dans un mélange, en une première expérience (MS), puis leurs structures après isolation suivie de fragmentation, obtenues une à une (MS/MS). La spectrométrie de masse FT-ICR bidimensionnelle permet d’obtenir toutes ces informations en une seule expérience, sans isolation, quelle que soit la complexité de l’échantillon. Le prix à payer est une faible résolution dans la dimension indirecte, pouvant être améliorée par une augmentation du temps d’analyse, mais qui semblait limiter cette techn
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23

Lin, Ethan. "Compressed Sensing for Electronic Radio Frequency Receiver:Detection, Sensitivity, and Implementation." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1458162252.

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24

Silva, Verônica Maria Lima. "Conversor A/D com amostragem não-uniforme e passo de quantização adaptativo." Universidade Federal da Paraí­ba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/5298.

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Made available in DSpace on 2015-05-08T14:57:18Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 3795959 bytes, checksum: 7a11a6cf0b41c67297d55642c2b80df3 (MD5) Previous issue date: 2014-02-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>In this work, we analyse different architectures of analog-to-digital converters (ADC) and propose an architecture based on sampling by crossing levels and adaptive quantization step, aiming at reducing the energy required to convert and process specific signals. The proposed architecture has parameters which can be dynamicall
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25

Back, Antoine. "Conception et intégration d'un convertisseur analogique-paramètres flexible pour les capteurs intelligents." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAT020.

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Avec le fort développement de l'Internet des Objets (IoT), il devient nécessaire de converger vers de nouveaux capteurs dit intelligents. Ces capteurs doivent permettre d'analyser l'environnement extérieur, comprendre le contexte dans lequel ils sont utilisés et être conscient des besoins utilisateurs. Ils doivent cependant rester petits, fiables, bon marché et avoir une autonomie de plusieurs années. La conversion analogique-paramètre (Analog-to-Feature, A2F) est une nouvelle méthode d'acquisition pensée pour les appareils IoT, et semble être une solution adaptée pour de tels capteurs. Cette
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Darwish, Amani. "Capteur d'images événementiel, asynchrone à échantillonnage non-uniforme." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT071/document.

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Face aux défis actuels liés à la conception de capteurs d'images à forte résolution comme la limitation de la consommation électrique, l'augmentation du flux de données ainsi que le traitement de données associé, on propose, à travers cette thèse, un capteur d'image novateur asynchrone à échantillonnage non uniforme.Ce capteur d’images asynchrone est basé sur une matrice de pixels événementiels qui intègrent un échantillonnage non uniforme par traversée de niveaux. Contrairement aux imageurs conventionnels, où les pixels sont lus systématiquement lors de chaque trame, les pixels événementiels
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27

Geffroy, Arthur. "Contribution a l'étude locale et globale de l'enveloppe convexe d'un échantillon aléatoire." Rouen, 1997. http://www.theses.fr/1997ROUES017.

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On définit le concept de plage d'appui d'un échantillon aléatoire, les plages d'appui étant certaines parties de l'enveloppe convexe pouvant coïncider avec l'enveloppe complète. On établit des formules générales pour l'espérance du nombre de sommets ou du nombre de cotes d'une plage d'appui quelconque, ainsi que l'espérance de sa longueur. Ces formules sont ensuite calculées dans le cas d'une loi normale dans le plan, d'une loi uniforme dans un polygone convexe, puis d'une loi uniforme dans une courbe convexe lisse. Des simulations informatiques permettent finalement d'étudier les vitesses de
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Simatic, Jean. "Flot de conception pour l'ultra faible consommation : échantillonnage non-uniforme et électronique asynchrone." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT084/document.

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Les systèmes intégrés sont souvent des systèmes hétérogènes avec des contraintes fortes de consommation électrique. Ils embarquent aujourd'hui des actionneurs, des capteurs et des unités pour le traitement du signal. Afin de limiter l'énergie consommée, ils peuvent tirer profit des techniques évènementielles que sont l'échantillonnage non uniforme et l'électronique asynchrone. En effet, elles permettent de réduire drastiquement la quantité de données échantillonnées pour de nombreuses classes de signaux et de diminuer l'activité. Pour aider les concepteurs à développer rapidement des plateform
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29

Louis, Julien. "Discrétisation des systèmes de Lur'e : stabilisation et consistance." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0080/document.

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De récents résultats sur l’étude des systèmes de Lur’e (commutés) à temps discret mettent en avant une fonction de Lyapunov de type Lur’e avancée, dont les lignes de niveau peuvent être non convexes et non connexes. Celles-ci soulèvent de larges questions pour les systèmes de Lur’e à temps discret obtenus par la discrétisation d’un système continu. Les contributions de cette thèse sont d’apporter des éléments de réponse à ces questions. Tout d’abord, le verrou des lignes de niveau non-connexes est levé en construisant à partir de celles-ci une suite décroissante d’ensembles connexes et bornés
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Louis, Julien. "Discrétisation des systèmes de Lur'e : stabilisation et consistance." Electronic Thesis or Diss., Université de Lorraine, 2015. http://www.theses.fr/2015LORR0080.

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De récents résultats sur l’étude des systèmes de Lur’e (commutés) à temps discret mettent en avant une fonction de Lyapunov de type Lur’e avancée, dont les lignes de niveau peuvent être non convexes et non connexes. Celles-ci soulèvent de larges questions pour les systèmes de Lur’e à temps discret obtenus par la discrétisation d’un système continu. Les contributions de cette thèse sont d’apporter des éléments de réponse à ces questions. Tout d’abord, le verrou des lignes de niveau non-connexes est levé en construisant à partir de celles-ci une suite décroissante d’ensembles connexes et bornés
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31

Manokhin, Mikhail. "Towards flexible and low-power wireless smart sensors : reconfigurable analog-to-feature converter for healthcare applications." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAT049.

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La croissance démographique et le vieillissement actuels augmentent le taux de maladies chroniques, principale cause mondiale de décès. Les réseaux corporels sans fil (WBANs), composés de capteurs intelligents portables ou implantables, sont la principale solution pour les systèmes de soins de santé proactifs réduisant le fardeau de ces maladies. Or, ces réseaux sont limités en termes de consommation d'énergie et de débit de données, surtout dans le cas des capteurs biopotentiels et inertiels avec une acquisition continue des signaux. La réduction de la quantité de données collectées et envoyé
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32

Gudmundson, Erik. "Signal Processing for Spectroscopic Applications." Doctoral thesis, Uppsala universitet, Avdelningen för systemteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-120194.

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Spectroscopic techniques allow for studies of materials and organisms on the atomic and molecular level. Examples of such techniques are nuclear magnetic resonance (NMR) spectroscopy—one of the principal techniques to obtain physical, chemical, electronic and structural information about molecules—and magnetic resonance imaging (MRI)—an important medical imaging technique for, e.g., visualization of the internal structure of the human body. The less well-known spectroscopic technique of nuclear quadrupole resonance (NQR) is related to NMR and MRI but with the difference that no external magnet
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33

Karawatzki, Roman, Josef Leydold, and Klaus Pötzelberger. "Automatic Markov Chain Monte Carlo Procedures for Sampling from Multivariate Distributions." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/1400/1/document.pdf.

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Generating samples from multivariate distributions efficiently is an important task in Monte Carlo integration and many other stochastic simulation problems. Markov chain Monte Carlo has been shown to be very efficient compared to "conventional methods", especially when many dimensions are involved. In this article we propose a Hit-and-Run sampler in combination with the Ratio-of-Uniforms method. We show that it is well suited for an algorithm to generate points from quite arbitrary distributions, which include all log-concave distributions. The algorithm works automatically in the sense that
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Karawatzki, Roman, and Josef Leydold. "Automatic Markov Chain Monte Carlo Procedures for Sampling from Multivariate Distributions." Department of Statistics and Mathematics, Abt. f. Angewandte Statistik u. Datenverarbeitung, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/294/1/document.pdf.

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Generating samples from multivariate distributions efficiently is an important task in Monte Carlo integration and many other stochastic simulation problems. Markov chain Monte Carlo has been shown to be very efficient compared to "conventional methods", especially when many dimensions are involved. In this article we propose a Hit-and-Run sampler in combination with the Ratio-of-Uniforms method. We show that it is well suited for an algorithm to generate points from quite arbitrary distributions, which include all log-concave distributions. The algorithm works automatically in the sense that
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35

Carneiro, Milena Bueno Pereira. "Reconhecimento de íris utilizando algoritmos genéticos e amostragem não uniforme." Universidade Federal de Uberlândia, 2010. https://repositorio.ufu.br/handle/123456789/14276.

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The automatic recognition of individuals through the iris characteristics is an e±cient biometric technique that is widely studied and applied around the world. Many image processing stages are necessary to make possible the representation and the interpretation of the iris information. This work presents the state of the art in iris recognition systems where the most re- markable works and the di®erent techniques applied to perform each process- ing stage are quoted. The implementations of each processing stage using traditional techniques are presented and, afterwards, two innovator methods
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Abusedra, Lamia. "Signal processing issues related to deterministic sea wave prediction." Thesis, University of Exeter, 2009. http://hdl.handle.net/10036/72013.

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The bulk of the research work in wave related areas considers sea waves as stochastic objects leading to wave forecasting techniques based on statistical approaches. Due to the complex dynamics of the sea waves’ behaviour, statistical techniques are probably the only viable approach when forecasting over substantial spatial and temporal intervals. However this view changes when limiting the forecasting time to a few seconds or when the goal is to estimate the quiescent periods that occur due to the beating interaction of the wave components, especially in narrow band seas. This work considers
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37

Vernhes, Jean-Adrien. "Échantillonnage Non Uniforme : Application aux filtrages et aux conversions CAN/CNA (Convertisseurs Analogique-Numérique et Numérique/Analogique) dans les télécommunications par satellite." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/15601/1/JAVernhes.pdf.

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La théorie de l'échantillonnage uniforme des signaux, développée en particulier par C. Shannon, est à l'origine du traitement numérique du signal. Depuis, de nombreux travaux ont été consacrés à l'échantillonnage non uniforme. Celui-ci permet, d'une part, de modéliser les imperfections des dispositifs d'échantillonnage uniforme. D'autre part, l'échantillonnage peut être effectué de manière délibérément non uniforme afin de bénéficier de propriétés particulières, notamment un assouplissement des conditions portant sur le choix de la fréquence moyenne d'échantillonnage. La plupart de ces travaux
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Rupashree, Dass. "Time-resolved multidimensional NMR spectroscopy with Non Uniform Sampling." Doctoral thesis, 2017. https://depotuw.ceon.pl/handle/item/2237.

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Czasorozdzielcza wielowymiarowa spektroskopia NMR z próbkowaniem niejednorodnym Promotor: Dr hab. Krzysztof Kazimierczuk Założenia Pośród technik chemii analitycznej używanych w laboratoriach na całym świecie szczególne miejsce zajmują techniki spektroskopowe. Umożliwiają one wyznaczanie struktur molekuł oraz dają wgląd w mechanizmy reakcji chemicznych. Wiedza o tym, jak przebiega reakcja w czasie pozwala na optymalizację procesu np. w celu zwiększenia jego wydajności. W celu efektywnych pomiarów czasorozdzielczych ważne jest stworzenie szybkich technik pomiarowych, które umożliwiałyby powtarz
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Chen, Wei-jen, and 陳威任. "IMPLEMENTATION OF GENERALIZED UNIFORM BANDPASS SAMPLING TECHNIQUE USING SWITCHED-CAPACITOR CIRCUIT." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/52997216912748509811.

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碩士<br>大同大學<br>電機工程學系(所)<br>99<br>In recent years, Software Defined Radio (SDR) has taken place of the conventional wireless receiver gradually. The kernel concept of software defined radio is to annul mixers and to place analog-to-digital converters (ADC) as close to the antenna as possible. Therefore, we can use the advantage of programmability to implement more communication functions by software. Bandpass sampling is a useful method to solve the problem of down-conversion. However, the thermal noise introduced by sampling circuits would cause noise aliasing effect in sampling process. Hence
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Legg, Johnathon Andrew. "Synthetic aperture radar using non-uniform sampling / by Jonathan Andrew Legg." Thesis, 1997. http://hdl.handle.net/2440/19134.

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Legg, Johnathon Andrew. "Synthetic aperture radar using non-uniform sampling / by Jonathan Andrew Legg." 1997. http://hdl.handle.net/2440/19134.

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Typescript.<br>Bibliography: p. 199-208.<br>xxv, 208 p. : ill. ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Electrical and Electronic Engineering, 1997
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Floropoulos, Theodore C. "A Bayesian method to improve sampling in weapons testing." Thesis, 1988. http://hdl.handle.net/10945/22930.

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Approved for public release; distribution is unlimited<br>This thesis describes a Bayesian method to determine the number of samples needed to estimate a proportion or probability with 95% confidence when prior bounds are placed on that proportion. It uses the Uniform [a,b] distribution as the prior, and develops a computer program and tables to find the sample size. Tables and examples are also given to compare these results with other approaches for finding sample size. The improvement that can be obtained with this method is fewer samples, and consequently less cost in Weapons Testing is
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Tsou, Pei-ling, and 鄒佩玲. "Perceptual Robust Image Hashing Schemes Based on Halftone Mechanism and Non-Uniform Sampling." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/02140861917096873334.

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碩士<br>逢甲大學<br>資訊工程所<br>99<br>Since the technology is developed rapidly, image digitization become a commend technique in our live. Because it is very convenient to sharing, modification, and carry, the image may be destroyed by malicious person. Therefore, the mechanism of image protection is appreciated. In this recent year, image hashing, also called image compression code, is developed for handle this issue. There are numerous applications, such as image retrieval, authentication, temper detection, etc. The hash value is a short string that presents the content-based feature of the image.
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Chang, Chun-Hao, and 張鈞豪. "A Study of Programmable Non-Uniform Analysis FIR Filter Bank Using Re-Sampling Scheme." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/duj7hu.

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碩士<br>國立交通大學<br>電子研究所<br>105<br>By exploiting the multirate re-sampling signal processing technique to design a fractional rate linear-phase FIR filter bank, the overall complexity of the sub-band DSP algorithms followed by the filter bank can be efficiently reduced. However, the applied fractional sampling rate conversions (SRCs) complicates the hardware complexity of the filter bank when implementation. In this thesis, we proposed a straightforward scheduling algorithm for fractional SRC to address the above issue. Then, a new implementation of a 10-ms, 18-band, 1/3-octave quasi-ANSI filter
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Saxena, Saurabh. "New NMR experiments for nucleic acids and intrinsically disordered proteins." Doctoral thesis, 2016. https://depotuw.ceon.pl/handle/item/1863.

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The aim of the project was to utilize the advanced high dimensional NMR methods with NUS implementations for the chemical shift assignments in the spectra of intrinsically disordered proteins/protein regions and nucleic acids. The project also involved the development of new high dimensional approaches for nucleic acids. Intrinsically disordered proteins are in abundance in organisms and their study is essential for understanding numerous diseases, in particular cancer and neurodegenerative disorders. Since they lack a stable structure and have fast conformational dynamics, their NMR spectra
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Gélinas-Lymburner, Emilie. "Développement d’une approche quantitative pour l’étude du poumon équin : fixation et échantillonnage pour l’application des principes de la stéréologie." Thèse, 2015. http://hdl.handle.net/1866/12987.

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La présente étude visait à développer un protocole de fixation et d'échantillonnage pour le poumon équin suivant les directives publiées sur l’utilisation d’une approche stéréologique de type « design-based ». Les poumons gauches de chevaux contrôles et atteints du souffle ont été fixés avec du formaldéhyde 10% pendant 48h à une pression constante de 25-30 cm d’H2O. Les poumons ont été sectionnés en 20-21 tranches d’une épaisseur d'environ 2,5 cm chacune; de 10-11 tranches ont été sélectionnées de façon aléatoire et systématique pour la mesure du volume de référence avec la méthode de Cavalie
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Mostafavian, Ali. "Mesh models of images, their generation, and their application in image scaling." Thesis, 2019. https://dspace.library.uvic.ca//handle/1828/10527.

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Triangle-mesh modeling, as one of the approaches for representing images based on nonuniform sampling, has become quite popular and beneficial in many applications. In this thesis, image representation using triangle-mesh models and its application in image scaling are studied. Consequently, two new methods, namely, the SEMMG and MIS methods are proposed, where each solves a different problem. In particular, the SEMMG method is proposed to address the problem of image representation by producing effective mesh models that are used for representing grayscale images, by minimizing squared error.
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Stanek, Jan. "Novel data processing methods for randomly sampled multi-dimensional NMR experiments." Doctoral thesis, 2014. https://depotuw.ceon.pl/handle/item/949.

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The topic of this dissertation is a new algorithm for processing of sparsely sampled data sets from multidimensional nuclear magnetic resonance (NMR) experiments. NMR remains one of the major experimental technique for studying biological macromolecules. However, increasing size of investigated objects poses a challenge for NMR due to rapidly decreasing sensitivity and increasing signal crowding. The first chapter focuses on recent advances in sensitivity enhancements and summarises a few solutions for resolution of spectral overlap. Subsequently, one describes the crucial and limiting problem
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Wischerhoff, Marius. "Reconstruction of Structured Functions From Sparse Fourier Data." Doctoral thesis, 2015. http://hdl.handle.net/11858/00-1735-0000-001C-7131-B.

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Melo, Jorge Gabriel Oliveira. "Detection of Significant Blood Pressure Events in the Perioperative Care." Master's thesis, 2020. http://hdl.handle.net/10316/93965.

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Trabalho de Projeto do Mestrado Integrado em Engenharia Biomédica apresentado à Faculdade de Ciências e Tecnologia<br>Complicações cardíacas são comuns durante uma cirurgia, com uma estimativa de 30% dos pacientes submetidos a extensos procedimentos cirúrgicos devido à presença de comorbidades cardiovasculares e intervenções não cardíacas associadas a uma taxa de 7-11% de complicações, sendo que 42% dessas são causadas por problemas cardíacos. A hemodinâmica reflete a capacidade de perfusão de oxigénio e nutrientes em todos os órgãos, a fim de manter as funções orgânicas ideais e evitar compli
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