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Dissertations / Theses on the topic 'Digital sampling'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 April 2022

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1

Li, Zhilin. "Sampling strategy and accuracy assessment for digital terrain modelling." Thesis, University of Glasgow, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303330.

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2

Ho, ChinFu. "The method of sequential systematic sampling in digital simulation." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/53624.

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This dissertation presents a methodology for the statistical analysis of simulation output data. The analysis deals with the predictability of statistical inferential procedures for means and variances when the data are realizations of correlated and nonnormally distributed random variables. The purpose of the methodology is to improve the predictability of an inferential procedure with respect to the level of confidence in confidence interval analysis, or the power function in hypothesis testing. Conventional methods of statistical analysis for means lead to poor performance in their predic

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3

Kimby, Adam. "Sampling och Friktion." Thesis, Blekinge Tekniska Högskola, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16461.

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This Bachelor Thesis examines sampling as creative process in relation to friction between users and creators. The goal of this thesis is to create an understanding of the relations involved in creative processes and explore sustainable manner of working with processes. To explore creative processes, sampling is interpreted in relation to music production and the musical culture involved in shaping of worlds. Sampling is the processes of creating from what already is in a way of involving the users and creators with the past, present and future. The friction of creative processes involves an u

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4

Hicks, William T. "Analysis of the Effects of Sampling Sampled Data." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611440.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California<br>The traditional use of active RC-type filters as anti-aliasing filters in Pulse Code Modulation (PCM) systems is being replaced by the use of Digital Signal Processing (DSP) filters, especially when performance requirements are tight and when operation over a wide environmental temperature range is required. In order to keep systems more flexible, it is often desired to let the DSP filters run asynchronous to the PCM sample clock. This results in the

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5

Tamvaklis, N. "Sampling and structural properties of discretized linear models." Thesis, City University London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300695.

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6

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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7

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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8

Tarnoff, David. "Episode 2.7 – The Effect of Sampling Rates on Digital Signals." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/computer-organization-design-oer/13.

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Converting an analog signal to digital involves more than just digitizing some measurements. Consequences result from sampling an analog signal and care has to be taken to capture all the desired frequencies and avoid creating new ones.

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9

Tourabaly, Jamil A. "A jittered-sampling correction technique for ADCs." Connect to thesis, 2008. http://portal.ecu.edu.au/adt-public/adt-ECU2008.0009.html.

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10

Merkelov, Fedor, and Yaroslav Kodess. "Design and Implementation of Sampling Rate Converters for Conversions between Arbitrary Sampling Rates." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1151.

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<p>In different applications, in digital domain, it is necessary to change the sampling rate by an arbitrary number. For example Software Radio which should handle different conversion factors and standards. </p><p>This work focuses on the problem of designing and implement sampling rate converters for conversions between arbitrary sampling rates. </p><p>The report presents an overview of different converter techniques as well as considers a suitable scheme with low implementation cost. The creating VHDL generator of Farrow-based structure to speed up the design process is the main task of thi

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11

Scoular, Spencer Charles. "Sampling and reconstruction of one-dimensional analogue signals." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283938.

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12

Stenner, Jack Eric. "Public news network: digital sampling to create a hybrid media feed." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/456.

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A software application called Public News Network (PNN) is created in this thesis, which functions to produce an aesthetic experience in the viewer. The application engenders this experience by presenting a three-dimensional virtual world that the viewer can navigate using the computer mouse and keyboard. As the viewer navigates the environment she sees irregularly shaped objects resting on an infinite ground plane, and hears an ethereal wind. As the viewer nears the objects, the sound transforms into the sound of television static and text is displayed which identifies this object as repre

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13

Drevery, Chad W. J. "Adaptive sampling and interpolation methods for digital image and video coding." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/MQ48060.pdf.

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14

Cheung, Sunny Ping San. "Electrostatic force sampling of digital waveforms using synchronous time domain gating." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0026/MQ51694.pdf.

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15

Cox, Timothy F. "Error Performance Bounds for M-Ary Digital FM with Predetection Sampling." International Foundation for Telemetering, 1987. http://hdl.handle.net/10150/615230.

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International Telemetering Conference Proceedings / October 26-29, 1987 / Town and Country Hotel, San Diego, California<br>Coherent detection of full response M-ary digital FM corrupted by additive white gaussian noise is studied. Prior to detection processing the signal plus noise is bandpass filtered and sampled. Upper error bounds which are applicable to the sampled system are given. With these bounds some comparisons of the effects of system parameter selection on the error performance can be made. These system parameters include deviation ratio, baseband pulse shape, sampling rate, number

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16

Waters, Simon. "Electroacoustic music : composition beyond the acousmatic." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338056.

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17

Yardim, Anush. "Flexible sampling and adaptive techniques for communication and instrumentation applications." Thesis, University of Westminster, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337249.

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18

Gee, Alan David. "Digital automatic flight control systems for advanced rotorcraft : an analysis framework." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341474.

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19

Datta, Srabosti. "POWER REDUCTION BY DYNAMICALLY VARYING SAMPLING RATE." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/275.

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In modern digital audio applications, a continuous audio signal stream is sampled at a fixed sampling rate, which is always greater than twice the highest frequency of the input signal, to prevent aliasing. A more energy efficient approach is to dynamically change the sampling rate based on the input signal. In the dynamic sampling rate technique, fewer samples are processed when there is little frequency content in the samples. The perceived quality of the signal is unchanged in this technique. Processing fewer samples involves less computation work; therefore processor speed and voltage can

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20

Brungard, Colby W. "Alternative Sampling and Analysis Methods for Digital Soil Mapping in Southwestern Utah." DigitalCommons@USU, 2009. http://digitalcommons.usu.edu/etd/472.

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Digital soil mapping (DSM) relies on quantitative relationships between easily measured environmental covariates and field and laboratory data. We applied innovative sampling and inference techniques to predict the distribution of soil attributes, taxonomic classes, and dominant vegetation across a 30,000-ha complex Great Basin landscape in southwestern Utah. This arid rangeland was characterized by rugged topography, diverse vegetation, and intricate geology. Environmental covariates calculated from digital elevation models (DEM) and spectral satellite data were used to represent factors cont

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21

Allay, Najib. "Application of nonuniform sampling techniques in digital signal processing and communication systems." Thesis, University of Westminster, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433854.

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22

Yearwood, Maurice. "Big data : a new alternative approach to sampling in the digital age." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274944.

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Survey research plays a significant role in the way psychologists investigate key relationships which impact human behaviours—and which inform us about undercurrents of a population. Samples are generally taken with the primary function of being able to make inferences which can be generalised to the target population—however, historically the field has consistently relied on small and niche datasets which are not truly representative of the general population. As a consequence, there is an abundance of published research which lacks ecological validity. The alternative approach is to collect

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23

Chiu, I.-Ting Kathy. "Recovery of symbol sampling time for North American digital cellular (NADC) system." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/35451.

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24

Harkins, Paul Michael. "Following the instruments and users : the mutual shaping of digital sampling technologies." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/22943.

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The socio-musical practice of sampling is closely associated with the re-use of pre-existing sound recordings and the technological processes of looping. These practices, based on appropriation and repetition, have been particularly common within the genres of hip-hop and Electronic Dance Music (EDM). Yet early digital sampling instruments such as the Fairlight Computer Musical Instrument (CMI) were not designed for these purposes. The technologists at Fairlight Instruments in Australia were primarily interested in the use of digital synthesis to imitate the sounds of acoustic instruments; sam

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25

Brungard, Colby W. "Alternative Sampling and Analysis Methods for Digital Soil Mapping in Southwestern Utah2." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/973.

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Digital soil mapping (DSM) relies on quantitative relationships between easily measured environmental covariates and field and laboratory data. We applied innovative sampling and inference techniques to predict the distribution of soil properties, soil attributes, taxonomic classes, and dominant vegetation across a 30,000-ha complex Great Basin landscape in southwestern Utah. This arid rangeland was characterized by rugged topography, diverse vegetation, and intricate geology. Environmental covariates calculated from digital elevation models (DEM) and spectral satellite data were used to repre

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26

Shahidi, Reza. "Methods and applications of irregular sampling and scattered data interpolation of digital images /." Internet access available to MUN users only, 2003. http://collections.mun.ca/u?/theses,161233.

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27

Lo, King Chuen. "Theory and realization of novel algorithms for random sampling in digital signal processing." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5239/.

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Random sampling is a technique which overcomes the alias problem in regular sampling. The randomization, however, destroys the symmetry property of the transform kernel of the discrete Fourier transform. Hence, when transforming a randomly sampled sequence to its frequency spectrum, the Fast Fourier transform cannot be applied and the computational complexity is N(^2). The objectives of this research project are (1) To devise sampling methods for random sampling such that computation may be reduced while the anti-alias property of random sampling is maintained : Two methods of inserting limite

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28

Burton, John Clifton II. "End-to-end analysis of hexagonal vs rectangular sampling in digital imaging systems." W&M ScholarWorks, 1993. https://scholarworks.wm.edu/etd/1539623834.

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The purpose of this study was to compare two common methods for image sampling in digital image processing: hexagonal sampling and rectangular sampling. The two methods differ primarily in the arrangement of the sample points on the image focal plane. In order to quantitatively compare the two sampling methods, a mathematical model of an idealized digital imaging system was used to develop a set of mean-squared-error fidelity loss metrics. The noiseless continuous/discrete/continuous end-to-end digital imaging system model consisted of four independent components: an input scene, an image form

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29

Maples, Bruce W., and Keith A. Fix. "An IF Sampling Digital Receiver Implementation for Space-based Command and Telemetry Applications." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/607493.

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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California<br>This paper describes an approach to the implementation of an IF sampling digital receiver for low data rate command and telemetry applications in the NASA Goddard Spaceflight Tracking and Data Network (STDN) and Air Force Space-Ground Link System (SGLS). The digital design is targeted for an FPGA-based implementation and was written entirely in VHDL. Several size and clock reduction techniques are described which were utilized due to limited gate-array res

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30

Coates, Adam Ross. "Methods for ultra-broadband correlator development focusing on high-speed digital sampling techniques." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:8ace9e68-d8e7-4f1d-b6c9-13853eecbd47.

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In radio astronomy, a key limiting factor to observations made is the available bandwidth of the system. This thesis looks at two different approaches to building ultra-broadband correlators for use in radio astronomy. The first was a 2-20GHz double-sideband complex analogue correlator that was constructed before the work of this thesis. Characterisation tests are performed and a basic calibration is attempted. Both these sets of experiments show good results, with the basic calibration successfully being able to compensate for gain difference between the lags over a reduced bandwidth range us

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31

Ruprecht, Nathan Alexander. "Implementation of Compressive Sampling for Wireless Sensor Network Applications." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157614/.

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One of the challenges of utilizing higher frequencies in the RF spectrum, for any number of applications, is the hardware constraints of analog-to-digital converters (ADCs). Since mid-20th century, we have accepted the Nyquist-Shannon Sampling Theorem in that we need to sample a signal at twice the max frequency component in order to reconstruct it. Compressive Sampling (CS) offers a possible solution of sampling sub-Nyquist and reconstructing using convex programming techniques. There has been significant advancements in CS research and development (more notably since 2004), but still nothing

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32

Summers, B. "On extensions to the sampling theorem and processing techniques for non-equispaced sampled-data systems." Thesis, University of Westminster, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233046.

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33

Alterson, Robert. "An adaptive-sampling algorithm for Gabor feature based object recognition /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ66340.pdf.

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34

Bisson, Joël A. "The Multi-Sampling Digital Tanlock Loop for tracking suppressed-carrier M-ary PSK signals." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/27823.

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A Multi-Sampling Digital Tanlock Loop (MDTL) is proposed for tracking suppressed-carrier M-ary Phase-Shift Keyed signals. Unlike the conventional Digital Phase-Locked Loop (DPLL) which possesses a sinusoidal phase characteristic, the MDTL has a linear phase characteristic with a period of 2π/M. Consequently, the MDTL can be characterized by a linear difference equation which eliminates the approximations of nonlinearity seen in the conventional DPLL. The linear difference equation also provides many attractive features over the conventional DPLL. These include locking conditions which are inse

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35

Glotzbach, John William. "A Color Filter Array Interpolation Method Based on Sampling Theory." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4785.

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Digital cameras use a single image sensor array with a color filter array (CFA) to measure a color image. Instead of measuring a red, green, and blue value at every pixel, these cameras have a filter built onto each pixel so that only one portion of the visible spectrum is measured. To generate a full-color image, the camera must estimate the missing two values at every pixel. This process is known as color filter array interpolation. The Bayer CFA pattern samples the green image on half of the pixels of the imaging sensor on a quincunx grid. The other half of the pixels measure the red an

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36

Sirois, Andre. "Copyright Law Inadequacies in the Case of Digital Sampling: Adding Color to a Grey Area." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/SiroisA2005.pdf.

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37

Prest, Thomas. "Gaussian sampling in lattice-based cryptography." Thesis, Paris, Ecole normale supérieure, 2015. http://www.theses.fr/2015ENSU0045/document.

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Bien que relativement récente, la cryptographie à base de réseaux euclidiens s’est distinguée sur de nombreux points, que ce soit par la richesse des constructions qu’elle permet, par sa résistance supposée à l’avènement des ordinateursquantiques ou par la rapidité dont elle fait preuve lorsqu’instanciée sur certaines classes de réseaux. Un des outils les plus puissants de la cryptographie sur les réseaux est le Gaussian sampling. À très haut niveau, il permet de prouver qu’on connaît une base particulière d’un réseau, et ce sans dévoiler la moindre information sur cette base. Il permet de réa

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38

Fung, Cheuk-wai. "A diagrammatic algorithm for minimum sampling frequency and quantization resolution for digital control of power converters." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B39389960.

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39

Fung, Cheuk-wai, and 馮卓慧. "A diagrammatic algorithm for minimum sampling frequency and quantization resolution for digital control of power converters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39389960.

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40

Indra, Isara. "Very low bit rate video coding using adaptive nonuniform sampling and matching pursuit." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/15779.

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41

Hill, Peter Lee. "Post-Processing Method for Determining Peaks in Noisy Strain Gauge Data with a Low Sampling Frequency." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78316.

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The Virginia Tech Transportation Institute is recognized for being a pioneer in naturalistic driving studies. These studies determine driving behavior, and its correlation to safety critical events, by equipping participant's vehicles with data acquisition systems and recording them for a period of time. The driver's habits and responses to certain scenarios and events are analyzed to determine trends and opportunities to improve overall driver safety. One of these studies installed strain gauges on the front and rear brake levers of motorcycles to record the frequency and magnitude of brake

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42

Hagerty, David Joseph. "Designing and Simulating a Multistage Sampling Rate Conversion System Using a Set of PC Programs." PDXScholar, 1993. https://pdxscholar.library.pdx.edu/open_access_etds/4697.

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The thesis covers a series of PC programs that we have written that will enable users to easily design FIR linear phase lowpass digital filters and multistage sampling rate conversion systems. The first program is a rewrite of the McClellanParks computer program with some slight modifications. The second program uses an algorithm proposed by Rabiner that determines the length of a lowpass digital filter. Rabiner used a formula proposed by Herrmann et al. to initially estimate the filter length in his algorithm. The formula, however, assumes unity gain. We present a modification to the formula

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43

Peng, Linghua. "Normalizing constant estimation for discrete distribution simulation /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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44

Hagerty, David Joesph. "Designing and Simulating a Multistage Sampling Rate Conversion System Using a Set of PC Programs." PDXScholar, 1993. https://pdxscholar.library.pdx.edu/open_access_etds/4762.

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The thesis covers a series of PC programs that we have written that will enable users to easily design FIR linear phase lowpass digital filters and multistage sampling rate conversion systems. The first program is a rewrite of the McClellanParks computer program with some slight modifications. The second program uses an algorithm proposed by Rabiner that determines the length of a lowpass digital filter. Rabiner used a formula proposed by Herrmann et al. to initially estimate the filter length in his algorithm. The formula, however, assumes unity gain. We present a modification to the formula

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45

Ghrayeb, Ali A. "ON SYMBOL TIMING RECOVERY IN ALL-DIGITAL RECEIVERS." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/609698.

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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>Sandia National Laboratories (SNL) currently achieves a bandwidth efficiency (h ) of 0.5 to 1.0 bps/Hz by using traditional modulation schemes, such as, BPSK and QFSK. SNL has an interest in increasing the present bandwidth efficiency by a factor of 4 or higher with the same allocated bandwidth (about 10 MHz). Simulations have shown that 32- QAM trellis-coded modulation (TCM) gives a good bit error rate (BER) performance, and meets the requirements as far as the b

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46

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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47

Foster, Kevin D. "A 3-channel 14-bit optimum SNS wideband digital antenna : analysis of the electro-optic sampling front end /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341258.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, September 1997.<br>"September 1997." Thesis advisor(s): Phillip E. Pace. Includes bibliography references (p. 69). Also available online.

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48

Ringer, William P. "Design, construction and analysis of a 14-bit direct digital antenna utilizing optical sampling and optimum SNS encoding." Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8215.

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Approved for public release; distribution is unlimited.<br>Direct digital direction finding (DF) antennas will allow an incoming signal to be digitally encoded at the antenna with high dynamic range (14 bits approx. equal 86 dB) without the use of down conversion that is typically necessary. As a shipboard DF device, it also allows for the encoding of wide band, high power signals (e.g., +/- 43 volts) that can often appear on shipboard antennas due to the presence of in band transmitters that are located close by. This design utilizes three pulsed laser driven Mach-Zehnder optical interferomet

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49

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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50

Winner, Taryn L. "FURTHERING THE DEVELOPMENT OF SPECTROSCOPY FOR EDUCATION AND UNIQUE SAMPLING SITUATIONS." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1437591218.

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