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Dissertations / Theses on the topic 'First system of Estimation'

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Published: 8 September 2023

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1

Azemi, Ghasem. "Mobile velocity estimation using a time-frequency approach." Thesis, Queensland University of Technology, 2003. https://eprints.qut.edu.au/15807/1/Ghasem_Azemi_Thesis.pdf.

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This thesis deals with the problem of estimating the velocity of a mobile station (MS)in a mobile communication system using the instantaneous frequency (IF) of the received signal at the MS antenna. This estimate is essential for satisfactory handover performance, effective dynamic channel assignment, and optimisation of adaptive multiple access wireless receivers. Conventional methods for estimating the MS velocity are based either on the statistics of the envelope or quadrature components of the received signal. In chapter 4 of the thesis, we show that their performance deteriorates in

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2

Azemi, Ghasem. "Mobile Velocity Estimation Using a Time-Frequency Approach." Queensland University of Technology, 2003. http://eprints.qut.edu.au/15807/.

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This thesis deals with the problem of estimating the velocity of a mobile station (MS)in a mobile communication system using the instantaneous frequency (IF) of the received signal at the MS antenna. This estimate is essential for satisfactory handover performance, effective dynamic channel assignment, and optimisation of adaptive multiple access wireless receivers. Conventional methods for estimating the MS velocity are based either on the statistics of the envelope or quadrature components of the received signal. In chapter 4 of the thesis, we show that their performance deteriorates in

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3

Studener, Stephan [Verfasser]. "Embedded Control and Parameter Estimation Algorithms for Transport Process Systems : modeled by first-order Partial Differential Equations / Stephan Studener." Aachen : Shaker, 2011. http://d-nb.info/1069049832/34.

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4

Bashir, Zeeshan Ahmed. "MSB First Arithmetic Circuit for Motion Estimation." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/theses/1723.

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AN ABSTRACT OF THE THESIS OF Zeeshan Ahmed Bashir, for the Masters of Science degree in Electrical and Computer Engineering, presented on 29th June 2015, at Southern Illinois University Carbondale TITLE: MSB FIRST ARITHMETIC CIRCUIT FOR MOTION ESTIMATION MAJOR PROFESSOR: Dr. Haibo Wang This thesis presents a novel design of arithmetic circuits that perform computation from MSB to LSB in a serial manner. In the MSB first serial computation, the result is gradually refined along the computation cycles. If the result is used to do a comparison with a threshold, such as in motion estimation appl

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5

Wu, Chunzhang. "First passage time laws, derivation, estimation and application." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq30420.pdf.

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6

Fontenot, Rory. "Welfare Losses from First-Come-First-Serve Course Enrollment: Outcome Estimation and Non-Market Maximization." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/cmc_theses/2057.

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College course enrollment operates as a market under supply cap. Because of the limited number of seats available for any given course some students who have a higher demand for a course are unable to enroll. The current registration system at the Claremont Colleges functions as a random draw system with added time costs. The lack of price signalling in the markets leads to a loss in overall welfare of the student body. By running data through simulated demand curves I am able to determine, on average, how much welfare is being lost by a random draw system. The percent of maximum welfare achie

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7

Zhang, Fan. "Power system harmonic state estimation." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/13019.

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8

Aysal, Tuncer Can. "Filtering and estimation theory first-order, polynomial and decentralized signal processing /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 327 p, 2007. http://proquest.umi.com/pqdweb?did=1257806501&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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9

GUARNERA, FRANCESCO. "Advanced Methods for Image Forensics: First Quantization Estimation and Document Authentication." Doctoral thesis, Università degli studi di Catania, 2022. http://hdl.handle.net/20.500.11769/539559.

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Digital Forensics, and in a specific way Multimedia Forensics, has grown significantly in the last years. Digital Forensics is defined as the branch of Forensic Science which scientifically analyzes a digital evidence in order to obtain information about it. The Digital 2021 Global Overview Report 1 published in January 2021 certifies that the world’s population has reached the number of 7.83 billion. The 66.6% (i.e. 5.22 billion) use a mobile phone, the 59.5% (i.e. 4.66 billion) use internet and the 53.6% (i.e. 4.2 billion) are social media users. The same report declares that from 2015

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10

Majumdar, Ankur. "Security in power system state estimation." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/33744.

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With the power system evolving from passive to a more active system there is an incorporation of information and communication infrastructures in the system. The measurement data are more prone to tampering from attackers for mala fide intentions. Therefore, security and reliability of distribution have become major concerns. State estimation (SE), being the core function of the energy/distribution management system (EMS/DMS), has become necessary in order to operate the system efficiently and in a controlled manner. Although SE is a well-known task in transmission systems, it is usually not a

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11

Ghofranih, Jahangir. "Control and estimation of a chaotic system." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29601.

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A class of deterministic nonlinear systems known as ”chaotic” behaves similar to noise-corrupted systems. As a specific example, Duffing equation, a nonlinear oscillator representing the roll dynamics of a vessel, was chosen for the study. State estimation and control of such systems in the presence of measurement noise is the prime goal of this research. A nonlinear estimation suitable for chaotic systems was evaluated against conventional methods based on linear equivalent model, and proved to be very efficient. A state feedback controller and a sliding mode controller were applied to the ch

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12

Elnaggar, Ashraf. "Variable regression estimation of unknown system delay." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30804.

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This thesis describes a novel approach to model and estimate systems of unknown delay. The a-priori knowledge available about the systems is fully utilized so that the number of parameters to be estimated equals the number of unknowns in the systems. Existing methods represent the single unknown system delay by a large number of unknown parameters in the system model. The purpose of this thesis is to develop new methods of modelling the systems so that the unknowns are directly estimated. The Variable Regression Estimation technique is developed to provide direct delay estimation. The delay e

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13

Loh, A. P. "Uncertainty estimation and multivariable control system design." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375267.

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14

Michiorri, Andrea. "Power system real-time thermal rating estimation." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/469/.

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This Thesis describes the development and testing of a real-time rating estimation algorithm developed at Durham University within the framework of the partially Government-funded research and development project “Active network management based on component thermal properties”, involving Durham University, ScottishPower EnergyNetworks, AREVA-T&D, PB Power and Imass. The concept of real time ratings is based on the observation that power system component current carrying capacity is strongly influenced by variable environmental parameters such as air temperature or wind speed. On the contrary,

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15

Al-Othman, Abdul Rahman K. "Uncertainty modelling in power system state estimation." Thesis, Brunel University, 2004. http://bura.brunel.ac.uk/handle/2438/7889.

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As a special case of the static state estimation problem, the load-flow problem is studied in this thesis. It is demonstrated that the non-linear load-flow formulation may be solved by real-coded genetic algorithms. Due to its global optimisation ability, the proposed method can be useful for off-line studies where multiple solutions are suspected. This thesis presents two methods for estimating the uncertainty interval in power system state estimation due to uncertainty in the measurements. The proposed formulations are based on a parametric approach which takes in account the meter inaccurac

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16

Babuscia, Alessandra. "Statistical risk estimation for communication system design." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76087.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 281-295).<br>Spacecraft are complex systems that involve many subsystems and multiple relationships among them. The design of a spacecraft is an evolutionary process that starts from requirements and evolves over time. During this process, changes can affect mass and power at component, subsystem, and system level. Each spacecraft has to respect overall constraints in terms of mass and power. The current practic

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17

Wang, Fei. "Pilot-Based Channel Estimation in OFDM System." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1302129482.

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18

Ebrahimian, Mohammad Reza. "Power system operations : state estimation distributed processing /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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19

Holmqvist, Niclas. "HANDHELD LIDAR ODOMETRY ESTIMATION AND MAPPING SYSTEM." Thesis, Mälardalens högskola, Inbyggda system, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-41137.

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Ego-motion sensors are commonly used for pose estimation in Simultaneous Localization And Mapping (SLAM) algorithms. Inertial Measurement Units (IMUs) are popular sensors but suffer from integration drift over longer time scales. To remedy the drift they are often used in combination with additional sensors, such as a LiDAR. Pose estimation is used when scans, produced by these additional sensors, are being matched. The matching of scans can be computationally heavy as one scan can contain millions of data points. Methods exist to simplify the problem of finding the relative pose between senso

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20

Pankaj, Rajesh Kumar. "A threshold strategy for a first in first out heteregeneous two server queueing system." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14756.

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21

Dolne, Jean J. "Estimation theoretical image restoration." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/47859.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2008.<br>Includes bibliographical references.<br>In this thesis, we have developed an extensive study to evaluate image restoration from a single image, colored or monochromatic. Using a mixture of Gaussian and Poisson noise process, we derived an objective function to estimate the unknown object and point spread function (psf) parameters. We have found that, without constraint enforcement, this blind deconvolution algorithm tended to converge to the trivial solution: delta function as the estimated psf

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22

Lipton-Duffin, Josh. "First results from a third generation KRIPES system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63326.pdf.

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23

Wang, Yan. "First-principles study of the hydrogen-metal system." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/31067.

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24

Griffiths, Gareth Ivor Goulbourn. "First-principles studies of the ammonia-water system." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610671.

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25

Cameron, Alan, Tony Cirineo, and Karl Eggertsen. "The Family of Interoperable Range System Transceivers (First)." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611408.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California<br>The objective of the FIRST project is to define a modern DoD Standard Datalink capability. This defined capability or standard is to provide a solution to wide variety of test and training range digital data radio communications problems with a common set of components, flexible to fit a broad range of applications, yet be affordable in all of them. This capability is to be specially designed to meet the expanding range distances and data transmission

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26

Horbelt, Werner. "Maximum likelihood estimation in dynamical systems." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963810812.

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27

KAWAGUCHI, Nobuo, and Seigo ITO. "Bayesian Based Location Estimation System Using Wireless LAN." IEEE, 2005. http://hdl.handle.net/2237/15455.

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28

Fayegh, A. David. "Flood advisor : an expert system for flood estimation." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25069.

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Expert computer programs have recently emerged from research on artificial intelligence as a practical problem-solving tool. An expert system is a knowledge-based program that imitates the problem-solving behaviour of a human expert to solve complex real-world problems. While conventional programs organize knowledge on two levels: data and program, most expert programs organize knowledge on three levels: data, knowledge base, and control. Thus, what distinguishes such a system from conventional programs is that in most expert systems the problem solving model is treated as a separate entity ra

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29

Vukovic, Divna, and Cecilia Wester. "Staff Prediction Analysis : Effort Estimation In System Test." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1739.

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This master thesis is made in 2001 at Blekinge Institute of Technology and Symbian, which is a software company in Ronneby, Sweden. The purpose of the thesis is to find a suitable prediction and estimation model for the test effort. To do this, we have studied the State of the Art in cost/effort estimation and fault prediction. The conclusion of this thesis is that it is hard to make a general proposal, which is applicable for all organisations. For Symbian we have proposed a model based on use and test cases to predict the test effort.

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30

Rababy, Nada. "Estimation of EMG conduction velocity using system identification." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63819.

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31

Wang, Jing. "Marine power system protection using active impedance estimation." Thesis, University of Nottingham, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.537689.

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32

Chen, Jiaxiong. "Power System State Estimation Using Phasor Measurement Units." UKnowledge, 2013. http://uknowledge.uky.edu/ece_etds/35.

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State estimation is widely used as a tool to evaluate the real time power system prevailing conditions. State estimation algorithms could suffer divergence under stressed system conditions. This dissertation first investigates impacts of variations of load levels and topology errors on the convergence property of the commonly used weighted least square (WLS) state estimator. The influence of topology errors on the condition number of the gain matrix in the state estimator is also analyzed. The minimum singular value of gain matrix is proposed to measure the distance between the operating point

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33

Harry, Cyril Massey. "A thermodynamics-system approach to software resource estimation." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46807.

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34

Alves, Tânia Sofia Vilaranda. "Stereo vision system for 3D ball trajectory estimation." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17934.

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Mestrado em Engenharia de Computadores e Telemática<br>O sistema de visão humano e um sistema complexo e extraordinário. O ser humano usa o que se denomina por esteropsia para obter uma noção da profundidade dos objectos que o rodeiam. Os dois olhos capturam duas imagens do mundo e o cérebro processa e interpreta a informação capturada. Um sistema de visão estéreo e baseado nesta capacidade. O sistema integra duas ou mais camaras que capturam visões diferentes do mundo. As imagens são processadas para obter informação 3D sobre os objectos e do próprio mundo. Estéreo é uma área impo

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35

Kan, Ka Ho. "Location estimation system based on the GSM network." HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/524.

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36

Liu, Kuang-Yu, and 劉光宇. "Viewing Angle Detection and Estimation Systems for Driving Assistance using First-Person-Vision." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/68613450289313540588.

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碩士<br>國立清華大學<br>電機工程學系<br>102<br>This thesis proposes an intelligent vehicle system to identify the driver improper driving behavior using the so-called “first-person vision” (FPV) technology. Different from conventional computer vision, FPV is based on the person wearing a goggles camera representing the subject vision. There are two technologies proposed in this thesis: vehicle exterior/interior view detection and driver viewing angle estimation. For the first method, we use “bag of words” image classification approach by applying FAST+BRIEF feature descriptor in the dataset collected in adv

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37

Chethan, Kumar M. "First Principles Based Mobility Estimation of Graphene." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/4915.

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Electron-phonon coupling (EPC) plays a vital role in detecting transport properties (e.g. mobility) of any material. First principles-based estimation of the mobility for any new material could act as a useful guideline for experimentalist. Inclusion of EPC in quantum transport models that involves non-equilibrium Greens function (NEGF) formalism with density functional theory (DFT), is numerically demanding. Because of this computational burden, some approximations are made such as phonon can be described within harmonic approximation which neglects non-harmonic part. However, at room

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38

Dooley, Ellen V. "Age estimation from features of the first rib." Thesis, 2020. https://hdl.handle.net/2144/41215.

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Several techniques for estimating adult age-at-death are used in biological and forensic anthropology, including morphological changes of the ribs. However, due to human variation and taphonomic damage, it remains difficult to produce accurate and meaningful age-at-death estimations based on skeletal remains. This research further explores morphological changes to the first rib, which is easily identifiable and relatively robust, including the costal face and tubercle facet identified by Kunos’ (1999) and modified by DiGangi et al. (2009). A total of 400 European American individuals (f=200; m

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39

Lin, Feng-Chu, and 林芳楚. "Various Slope Estimation System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/79966546300060077597.

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碩士<br>國立交通大學<br>電控工程研究所<br>100<br>We still need to pedal when riding an e-bike, but the differ¬ence is that there is a DC motor in the front wheel. During pedaling, the rider gets addi¬tional power from the motor, and that will enhance the comfort of pedaling. Gener¬ally speaking, categories of various resistant torques are nothing else but slope, wind resistance, and road friction. However, the power of motor and the timing of shifting gear have to adjust to different resistances. This thesis presents a system which estimates vari¬ous slope based on an e-bike and it will be useful for e-bike

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40

Song, Hosin. "Nonparametric identification and semi-nonparametric estimation of first-price auctions." 2007. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-2062/index.html.

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41

Su, Ching-Long, and 蘇慶龍. "An MSD-First Architecture and Its Application to Motion Estimation." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/34464105980922149884.

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博士<br>國立交通大學<br>電子工程系<br>91<br>This dissertation explores the issues of the MSD-first processing and derives a novel MSD-first architecture strategy for VLSI implementations. The architecture is very suitable for the multimedia and communication systems. We demonstrate this design methodologies by an ME example. The implementation results show that our MSD-first strategy totally supports 5.04 times SAD (summation of absolute difference) operations per unit area of the conventional digit-parallel ones. The MSD-first processing adopts the on-line arithmetic components that are widely

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42

Afariebor, Roland. "Identification and estimation of a first order bilinear time series /." 2001.

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43

Jui-Chi, Chen, and 陳瑞琦. "Channel Estimation for OFDM System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/fmxzg4.

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碩士<br>南台科技大學<br>電子工程系<br>95<br>The OFDM system was proposed for its efficiency in eliminanting the effects of multipath fading and impulse noise, However, in wideband mobile channel, the channel characteristic is usually frequency selective and time-varying. It is crucial to estimate the channel response for the receiver end to enhance the system performance. In this paper, we propose a channel estimation for the OFDM based on the check sum of the transmitted data. From the simulation results, it demonstrates that the our proposed method has superior performance in the fast fading channel.

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44

Bengani, Saurav Kumar. "Estimation of power system frequency." Thesis, 2013. http://ethesis.nitrkl.ac.in/4930/1/109EE0261.pdf.

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Frequency is an important parameter in power system for indicating the dynamic balance between amount of power generated and amount of power consumed. Small changes in system frequency can affect the operation of a power system in a great manner. Thus, estimating the frequency is one of the most important task in the power system operation. A least mean square (LMS) algorithm with varying step size to estimate the frequency is studied in this report and its performance under the influence of harmonics, noise, unbalanced conditions, step changes in frequency, etc is observed through various sim

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45

(10717698), Runhua Sun. "Bike Share System - Rebalancing Estimation and System Optimization." Thesis, 2021.

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Bike share system (BSS) has received increasing attention in research for its potential economic and environmental benefits. However, some research has pointed out the negative sustainability impacts of BSS from rebalancing activity, due to its greenhouse gas (GHG) emissions and additional vehicle travels. Additionally, bike and station manufacturing also bring considerable emissions to the system. Therefore, it is important to analyze the current rebalancing efficiency and sustainability of BSSs, and to assist the BSS operators in optimizing the BSS design. Existing studies lack tools to esti

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46

Hsu, Hsin-Yi, and 許欣怡. "Estimation of credit default risk of corporate --- first passage time approach." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/78369440227264326964.

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碩士<br>開南管理學院<br>財務金融系碩士班<br>93<br>The importance of Credit Risk Management is rising because of the diversification of financing channels in corporations. How to predict the possibility of financial distress and probability of default happened exactly in corporations is a very critical issue in the Credit Risk Management. There are three methods having been adopted: the credit scoring model, the creditmetrics and the option pricing model. In this paper, we extend models of Leland’s 94 of a closed-form solution between corporation equity market value and assets market value and Duan’s 94 of max

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Huang, Yi-Shan, and 黃義珊. "Channel Estimation for Uplink WCDMA System." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/41067972043122808842.

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碩士<br>國立交通大學<br>電子工程系<br>88<br>In this thesis, the channel estimation methods for next generation wideband code-division multiple-access (WCDMA) system were studied. Coherent WCDMA reverse link periodically transmitting pilot symbols in front of every control channel slot to estimate the fading channel is considered. For the WCDMA reverse link, fast transmit power control (TPC) and power saving of mobile station are the important issues. We proposed moving average method and sliding window methods to overcome the decision delay of the control symbols. We also proposed a low-complexity channel

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48

ZHAO, FENG-BIN, and 趙峰彬. "An expert software cost estimation system." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/79059320838155606287.

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49

Yeh, Jih-Hsiang, and 葉日翔. "Dose estimation of digital mammography system." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/84290382092447153282.

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碩士<br>國立陽明大學<br>生物醫學影像暨放射科學系暨研究所<br>96<br>The purpose of this study was to estimate the radiation dose of the digital mammography system. The radiation dose and image quality of different exposure setting were estimated with the standard American College of Radiology (ACR) phantom. The results showed that the most suitable exposure setting was 30 kVp and 47.7 mAs. The mean glandular dose at 30 kVp and 47.7 mAs was 1.40 mGy, and the effective dose was 0.07 mSv. The effective dose of 0.07 mSv was about 1/34 of the natural background radiation exposure per year. In this study, a comparison in m

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Jan, Yao-Yang, and 詹曜陽. "Economic Estimation of Classroom Lighting System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/48505782467673433170.

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碩士<br>崑山科技大學<br>電子工程研究所<br>100<br>The main issue of this thesis is a comparison of traditional T9 fluorescent, T5 fluorescent lamps, and Light Emitting Diode (LED) in campus classroom. First, the author measures illumination of classroom using a digital instrument. Then, a lighting simulation software is implemented analysis for T9, T5, and LED lights. This software can output different analysis results such as: (1) power consumption, (2)illuminance distribution ( i.e., maximum, minimum, and average illuminances),(3) electricity tariffs in accordance with Taipower company. The research result

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