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Rozprawy doktorskie na temat „Radio-tracking”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Bryant, Edmund Bernard. "Radio tracking of pinnipeds." Thesis, University of Sheffield, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364311.

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Kabelac, Zachary (Zachary E. ). "3D tracking via body radio reflections." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91834.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 65-66).<br>This thesis presents WiTrack, a system that tracks the 3D motion of a user from the radio signals reflected off her body. It works even if the person is occluded from the WiTrack device or in a different room. WiTrack does not require the user to carry any wireless device, yet its accuracy exceeds current RF localization systems, which require the user to hold a transceiver. Emp

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3

Huber, Braden R. "Radio determination on mini-UAV platforms : tracking and locating radio transmitters /." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd2980.pdf.

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Huber, Braden Russell. "Radio Determination on Mini-UAV Platforms: Tracking and Locating Radio Transmitters." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1743.

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Aircraft in the US are equipped with Emergency Locator Transmitters (ELTs). In emergency situations these beacons are activated, providing a radio signal that can be used to locate the aircraft. Recent developments in UAV technologies have enabled mini-UAVs (5-foot wingspan) to possess a high level of autonomy. Due to the small size of these aircraft they are human-packable and can be easily transported and deployed in the field. Using a custom-built Radio Direction Finder, we gathered readings from a known transmitter and used them to compare various Bayesian reasoning-based filtering algorit

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5

Chen, Xi. "Sequential Monte Carlo radio-frequency tomographic tracking." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104844.

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Target tracking in over a small-scale area using wireless sensor networks (WSNs) is a technique that can be used in applications ranging from emergency rescue after an earthquake to security protection in a building. Many target tracking systems rely on the presence of an electric device which must be carried by the target in order to reports back its location and status. This makes these systems unsuitable for many emergency applications; in such applications device-free tracking systems that where no devices are attached to the targets are needed. Radio-Frequency (RF) tomographic tracking is

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6

Najarro, F., Joachim Puls, A. Herrero, M. M. Hanson, J. Martín-Pintado, and D. J. Hillier. "Tracking the Clumping in OB Stars from UV to radio." Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2008/1770/.

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7

Mazarico, Erwan Matías Alexandre 1981. "Study of the Martian upper atmosphere using radio tracking data." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/42923.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references.<br>Since the first in situ observations of the Martian atmosphere were made by the twin Viking landers, we have learned considerably more about its composition, dynamics and variability. Not only did the new data on global atmospheric densities generate opportunities to understand the atmospher

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8

Olsen, Snorre Haugstulen. "Radio Tracking of Open Range Sheep : Methods for Radio Location in a Sub-GHz Base Station Network." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26649.

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This thesis aims to compare methods of radio location for the purpose of tracking sheep by using sub-GHz radio transceivers arranged in a base station network. Nearly 10% of free-grazing sheep in Norway are lost every year, creating losses for both farmers and the government. Tracking technology may reduce these losses. Existing tracking solutions based on GPS and GSM are commercially available, but previous research shows that poor signal conditions in grazing areas limit their efficacy. An alternative tracking system using the low-power CC1120 transceiver from Texas Instruments is outlined a

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9

Campbell, Philip E. "Visual analysis of a radio frequency tracking system for virtual environments." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA363020.

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Thesis (M.S. in Computer Science and M.S. in Applied Physics) Naval Postgraduate School, June 1999.<br>"June 1999". Thesis advisor(s): Rudy Darken, Xavier Maruyama. Includes bibliographical references (p.83-84). Also available online.

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10

Rönnberg, Sjödin Oskar, and David Ahlsin. "Development of Simulation Tool and New Tracking Algorithms for Radio Occultation Receivers." Thesis, Linköpings universitet, Kommunikationssystem, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-75424.

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When a radio signal traverses the atmosphere it will be delayed by not only thedistance between transmitter and receiver, but also the atmosphere. Given knowl-edge of the characteristics of the sent signal the effect of the atmosphere can beobtained from the received signal. This concept is called radio occultation. Radiooccultation can provide high accuracy profiles of temperature, pressure and watervapour troughout the atmosphere.This report aims to present the work and results from a thesis performed atRUAG Space in Göteborg. The purpose of the thesis was to implement a simulatorwhich with

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11

Bishop, John. "Application of radio-navigation systems to the remote tracking of marine mammals." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361172.

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Bishop, John. "Application of radio-navigation systems to the remote tracking of marine animals." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360999.

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13

Wajirakumara, Akila. "Simulation of Precise Automatic Radio Frequency GroundStation Tracking For S-Band Satellites." Thesis, Luleå tekniska universitet, Rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-83988.

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Satellites are often known for possessing invariable motion causing its apparent position to drift in the sky from the perspective of a ground station. If these irregular drifts are not compensated, the performance of the communication link would be greatly affected. Hence, the satellite motion has to be tracked by the ground station antenna. Arctic Space Technologies is a company based in northern Sweden that focuses on highly reliable and secure satellite data handling solutions; main with S-Band satellites in the Low Earth Orbit (LEO). This thesis consolidates a comprehensive research to im

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14

Kloos, Gerold. "Radio-Frequency Signal Strength Based Localisation in Unstructured Outdoor Environments." Faculty of Engineering and Information Technologies, 2008. http://hdl.handle.net/2123/2242.

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Doctor of Philosophy (PhD)<br>This thesis addresses the issues arising in range-only localisation and tracking using Radio Frequency Received Signal Strength Indicator measurements. One of the key issues in Radio Frequency (RF) based localisation and tracking applications is to obtain an accurate sensor representation. Such a sensor model is one of the prerequisites to achieve high accuracy and precision in the localisation and tracking task. The sensor models used at present for this task are very simplistic, and as a consequence are unable to achieve highly accurate and precise localisation.

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15

Kloos, Gerold. "Radio-Frequency Signal Strength Based Localisation in Unstructured Outdoor Environments." Thesis, The University of Sydney, 2007. http://hdl.handle.net/2123/2242.

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This thesis addresses the issues arising in range-only localisation and tracking using Radio Frequency Received Signal Strength Indicator measurements. One of the key issues in Radio Frequency (RF) based localisation and tracking applications is to obtain an accurate sensor representation. Such a sensor model is one of the prerequisites to achieve high accuracy and precision in the localisation and tracking task. The sensor models used at present for this task are very simplistic, and as a consequence are unable to achieve highly accurate and precise localisation. While such an accurate sensor

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16

Dutton, Kevin E. "Theory and performance of an X-band radio frequency phase-differencing position tracking system." Ohio University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1178048111.

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17

Pout, Alastair. "Modelling the movements of the Eurasian sparrowhawk Accipiter nisus from radio-tracking data." Thesis, University of Aberdeen, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430054.

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This thesis explores ways of modelling of animal movement that are applicable to empirical data, using the Eurasian sparrowhawk <i>Accipiter nisus</i> as the model species. Radio-tracking data on sparrowhawks were gathered during the breeding seasons of 2002 and 2003 in rural Aberdeenshire. In all, 15 sparrowhawks were tracked including provisioning males, females, non-breeding adults and dispersing juveniles. An analysis of quantified movements’ characteristics (move length, stopping times and distance from the nest site) in relation to behavioural, climatic and temporal variables, aggregated

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18

Geng, Yishuang. "Radio Propagation for Localization and Motion Tracking In Three Body Area Network Applications." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/394.

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"Precise and accurate localization and motion classification is an emerging fundamental areas for scientific research and engineering developments. Such science and technology began from the broad out door area applications, and gradually grew into smaller and more complicated in-door area and more recently it is proceeding into in-body area networking for medical applications. Localization and motion classification technologies have their own specific challenges depending on the application and environment, which are left for scientists and engineers to overcome. One major challenge is tha

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19

Davies, John Clay IV. "Design and Implementation of an FPGA-based Soft-Radio Receiver Utilizing Adaptive Tracking." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/34858.

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The wireless market of the future will demand inexpensive hardware, expandability, interoperability, and the implementation of advanced signal processing functions--i.e. a software radio. Configurable computing machines are often ideal software radio platforms. In particular, the Stallion reconfigurable processor's efficient hardware reuse and scalability fulfill these radios' demands. The advantages of Stallion-based design inspired an FPGA-based software radio - the proto-Stallion receiver. This thesis introduces the proto-Stallion architecture and details its implementation on the SLAAC

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20

Kundu, Auni Aunnoyee. "Time Difference of Arrival Technique Using Radio Frequency for Small Mammal Tracking System." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/321786.

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21

Zannoni, Marco <1985&gt. "Development Of New Toolkits For Orbit Determination Codes For Precise Radio Tracking Experiments." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6536/4/zannoni_marco_tesi.pdf.

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This thesis describes the developments of new models and toolkits for the orbit determination codes to support and improve the precise radio tracking experiments of the Cassini-Huygens mission, an interplanetary mission to study the Saturn system. The core of the orbit determination process is the comparison between observed observables and computed observables. Disturbances in either the observed or computed observables degrades the orbit determination process. Chapter 2 describes a detailed study of the numerical errors in the Doppler observables computed by NASA's ODP and MONTE, and ES

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22

Zannoni, Marco <1985&gt. "Development Of New Toolkits For Orbit Determination Codes For Precise Radio Tracking Experiments." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6536/.

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This thesis describes the developments of new models and toolkits for the orbit determination codes to support and improve the precise radio tracking experiments of the Cassini-Huygens mission, an interplanetary mission to study the Saturn system. The core of the orbit determination process is the comparison between observed observables and computed observables. Disturbances in either the observed or computed observables degrades the orbit determination process. Chapter 2 describes a detailed study of the numerical errors in the Doppler observables computed by NASA's ODP and MONTE, and ES

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23

Senchak, Suzanne S. "Home ranges and habitat selection of red-shouldered hawks in Central Maryland : evaluating telemetry triangulation errors /." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03022010-020219/.

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24

Robertson, Peter Charles John. "Movement behaviour of wild and rehabilitated juvenile foxes (Vulpes vulpes)." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238942.

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25

Bidder, Owen R. "A movement ecology toolkit : novel biotelemetry methodologies for elucidating animal behaviour and location." Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42816.

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This thesis aims to address some of the deficiencies that exist in this discipline, in order to widen the applicability of biotelemetry methods and ultimately provide new data which will improve our understanding of animal movement strategies.

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26

Stokely, John Matthews. "The feasibility of utilizing the cellular infrastructure for urban wildlife telemetry /." PURL, 2005. http://www.arlis.org/docs/vol1/A/430530928.pdf.

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Oh, Chang Yul, Hyo Keun Lee, and Seung Hyeub Oh. "Refraction Effects for Tracking Error at C- & S-Band Frequencies." International Foundation for Telemetering, 2010. http://hdl.handle.net/10150/605934.

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ITC/USA 2010 Conference Proceedings / The Forty-Sixth Annual International Telemetering Conference and Technical Exhibition / October 25-28, 2010 / Town and Country Resort & Convention Center, San Diego, California<br>This document is focused on the examination of the tracking angular error due to the radio refraction for the target in low altitude of less than 5km and in low elevation angle. The real measured data using the GPS and the tracking systems of C- and S-band frequency in NARO Space centre, Korea are used for the analysis. The analysis shows couple of conclusions on the radio refrac

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King, Edwin T. "Microcircuit Technology in Logistic Applications Radio Frequency (MITLA/RF) : an analysis of radio frequency identification and tracking to support logistic operations /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA297969.

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Herranz, Claveras Carlos. "Beam Tracking Strategies for 5G New Radio Networks Operating in the Millimetre Wave Bands." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/130845.

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[ES] La llegada de la próxima generación del estándar de comunicaciones móviles, la llamada quinta generación (5G), es prácticamente una realidad. Las primeras redes comerciales han comenzado a ser desplegadas, centrándose en ofrecer altas velocidades de transferencia de datos. Sin embargo, el estándar 5G va mucho más allá y prevé dar soporte a nuevos servicios que pretenden revolucionar la sociedad. Estos nuevos servicios imponen un nivel alto de requisitos en no solo en cuanto a velocidad del tráfico de datos, sino en cuanto a latencia o número de dispositivos conectados simultáneamente. La

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Jang, Won Suk. "Embedded system for construction material tracking using combination of radio frequency and ultrasound signal." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7683.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Civil and Environmental Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Dong, Weizhen. "Time Blanking for GBT Data with RADAR RFI." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd468.pdf.

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Jackson, Allyson Kathleen. "Survival in an Urbanized Landscape: Radio-Tracking Fledgling Eastern Bluebirds (Sialia sialis) on Golf Courses." W&M ScholarWorks, 2010. https://scholarworks.wm.edu/etd/1539626898.

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Williams, Kyle Occeña Luis. "The use of radio frequency identification (RFID) in tracking surgical sponges and reducing wrong-site surgeries." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/6284.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb. 19, 2008). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dr. Luis Occeña, Thesis Supervisor. Includes bibliographical references.

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Hurd, William J., Joseph I. Statman, and Victor A. Vilnrotter. "GPS HIGH DYNAMIC RECEIVER TRACKING DEMONSTRATION RESULTS." International Foundation for Telemetering, 1985. http://hdl.handle.net/10150/615742.

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International Telemetering Conference Proceedings / October 28-31, 1985 / Riviera Hotel, Las Vegas, Nevada<br>Demonstration results are presented for a high dynamic GPS receiver. The receiver tested is a breadboard unit capable of tracking one simulated satellite signal in pseudorange and range rate. The receiver makes approximate maximum likelihood estimates of pseudorange and range rate each 20 ms, and tracks these observables using a third order filter with a time constant of 0.14 s. Carrier phase is not tracked, which eliminates the typical failure mode of loss of carrier lock associated w

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35

Tocornal, Orostegui Andrés. "Análisis técnico-económico del sistema de radiocomunicación de línea 4/4a del metro de Santiago." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/104525.

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Sharpe, David. "An investigation into the viability of using radio signal strength across multiple frequencies for personnel tracking." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10685.

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Location systems for tracking people and objects have many potential applications, such as: safety, security, logistics, control, surveillance and automation. GPS is such a system, but does not work accurately indoors. This project was initiated to further investigate a location technique developed by Microsoft Research, using a wireless local area network with one mobile network point, and measuring the radio signal strength of the network communications between the mobile and fixed points. This project attempted to improve on this technique by investigating whether additional information and

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37

Agirnas, Emre. "Multi-scan Data Association Algorithm For Multitarget Tracking." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12605646/index.pdf.

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Data association problem for multitarget tracking is determination of the relationship between targets and the incoming measurements from sensors of the target tracking system. Performance of a multitarget tracking system is strongly related to the chosen method for data association and target tracking algorithm. Incorrect data association effects state estimation of targets. In this thesis, we propose a new multi-scan data association algorithm for multitarget tracking systems. This algorithm was implemented by using MATLAB programming tool. Performances of the new algorithm and JPDA method f

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Rhodes, James M. "The use of a radio frequency tracking system to quantify the external demands of elite wheelchair rugby." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/19615.

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Within team sports, coaches aim to improve physical preparation by optimising the training process specific to competition. Unfortunately, at the elite level of wheelchair rugby (WCR) evidence-based information to guide this process is currently lacking. The present thesis investigates measures of external load during elite competition and explores whether this can be translated to inform current training practices. The first study established the suitability of a radio frequency-based, indoor tracking system (ITS) for the collection of movements specific to WCR. Minimal relative distance erro

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Gangadeen, Kevin E., and Bernadette D. Houston. "Assessing industry business practices in implementing Radio Frequency Identification (RFID) in the tracking and tracing of pharmaceuticals." Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/9976.

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MBA Professional Report<br>The purpose of this MBA project is to assess industry business practices in implementing RFID technology in the tracking and tracing of pharmaceuticals. Our project will focus on what was found during our research (to include interviews and site visits) which was quite different from what was portrayed by the media. Our analysis of a few organizations will identify what market leaders do when considering the implementation of a new technology into its business practices. Based on our analysis, we determined what patterns were common throughout the industry and wh

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Van, Heerden Michael Rudi. "Improving the selectivity of the radio-labelling of ion exchange resin tracers for positron emission particle tracking." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/24310.

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Positron emission particle tracking (PEPT) is a technique which non-invasively tracks tracer particles labelled with a positron emitting radionuclide in a system of flow. The tracers are tracked through the detection in a PET scanner, of the two nearly collinear 511 keV gamma rays resulting from the annihilations of the positrons. For this technique to be effective, the tracer must be representative of the media in the system under study, and labelled with a sufficient activity of radionuclides. Organic ion exchange resins are suitable tracer materials for PEPT experiments, and are usually lab

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de, Groot Eric H. "Transmitter Localization by Virtual Multipath Correlation." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/595994.

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This thesis investigates a method of tracking remote transmitters using multipath localization ﬁngerprints generated by a ray tracing simulation. Radio wave propagation phenomena in a dense urban environment can be simulated using publicly available mapping data and 2-D ray tracing techniques when the receivers and transmitters are found to be approximately co-planar. OpenStreetMap (OSM) building data is used to model the area of interest, and frequency of arrival (FOA) localization ﬁngerprints are generated virtually along a grid. These ﬁngerprints are then used to estimate the origin of inco

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42

Vandenabeele, Sylvie Paule. "Avian rucksacks for science : in search for minimum-impact tagging procedures for birds." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42920.

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Voltaire wrote "With great power comes responsibility", a quote which can easily be applied to scientists nowadays whose work effectively shapes the life of billions of living beings, operating through various disciplines from medicine through to ecology. To help scientists working with wild creatures, animal-attached electronic devices, commonly referred to as 'tags', have become indispensable tools, pushing the boundaries into the unimaginable enabling, for instance, information to be sent from animals into space and back via satellites. This 'great power' does indeed come with 'responsibili

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De, Wet Sarel Joubert. "Development of a system for tracking objects in a confined space / S.J. de Wet." Thesis, North-West University, 2009. http://hdl.handle.net/10394/4010.

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Gerhard, William Edward III. "Pseudo Doppler Direction Finding System for Localizing Non-Cooperative VHF Transmitters with a Hybrid UAS." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/92199.

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Current radio direction finding techniques are limited in flexibility and focus on specific applications. Commercial off the shelf systems exist for a wide range of applications from navigation to search and rescue and wildlife tracking. However these systems rely on commercially available VHF receivers and are limited in transmission modulation techniques and frequency ranges. The majority of these systems are expensive which places them outside the reach of most individuals while the current open source designs require specialized skills and knowledge to build. The goal of this work was to

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Costin, Aaron M. "Integration of passive RFID location tracking for real-time visualization in building information models (BIM)." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50395.

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Navigation through large and unfamiliar facilities with labyrinths of corridors and rooms is difficult and often results in a person being lost. Additionally, locating a specific utility within a facility is often a tough task. The hypothesis tested in this research is that integrating real-time automated sensing technology and a Building Information Model will provide real time visualization that can assist in localization and navigation of a facility. The scope of this research is facility maintenance management during the Operation and Maintenance (O&M) phase of a facility. The thesis demon

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Maddali, Hanuma Teja. "Inferring social structure and dominance relationships between rhesus macaques using RFID tracking data." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51866.

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This research address the problem of inferring, through Radio-Frequency Identification (RFID) tracking data, the graph structures underlying social interactions in a group of rhesus macaques (a species of monkey). These social interactions are considered as independent affiliative and dominative components and are characterized by a variety of visual and auditory displays and gestures. Social structure in a group is an important indicator of its members’ relative level of access to resources and has interesting implications for an individual’s health. Automatic inference of the social structur

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Shuaieb, Wafa S. A. "Radio-Location Techniques for Localization and Monitoring Applications. A study of localisation techniques, using OFDM system under adverse channel conditions and radio frequency identification for object identification and movement tracking." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/18185.

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A wide range of services and applications become possible when accurate position information for a radio terminal is available. These include: location-based services; navigation; safety and security applications. The commercial, industrial and military value of radio-location is such that considerable research effort has been directed towards developing related technologies, using satellite, cellular or local area network infrastructures or stand-alone equipment. This work studies and investigates two location techniques. The first one presents an implementation scheme for a wide

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Stach, Robert. "Migratory routes and stopover behaviour in avian migration." Doctoral thesis, Stockholms universitet, Zoologiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-126975.

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Migratory birds, some small and light weight as matchboxes, engage in seasonal inter-continental journeys in order to take advantage of the long summer days and abundance of food at northern latitudes to breed and raise their young, and then escape the harsh winters by migrating to lower latitudes. This thesis deals with two important aspects of migration, the routes taken during migration and the birds’ behaviour at stopovers. The migratory routes are for many species unknown, whole or in part, and this is especially true for species that migrate nocturnally. At stopovers birds replenish fuel

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Kozy, Mark Alexander. "Creation of a Cognitive Radar with Machine Learning: Simulation and Implementation." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/89948.

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In this paper we address radar-communication coexistence by modelling the radar environment as a Markov Decision Process (MDP), and then apply Deep-Q Learning to optimize radar performance. The radar environment includes a single point target and a communications system that will potentially interfere with the radar. We demonstrate that the Deep-Q Network (DQN) we construct is able to successfully avoid interfering with the communication system to improve its performance. We also show that the DQN method outperforms previous methods in terms of memory and handling new situations. In this thesi

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Finnegan, Kenneth W. Mr. "Examining Ambiguities in the Automatic Packet Reporting System." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1341.

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The Automatic Packet Reporting System (APRS) is an amateur radio packet network that has evolved over the last several decades in tandem with, and then arguably beyond, the lifetime of other VHF/UHF amateur packet networks, to the point where it is one of very few packet networks left on the amateur VHF/UHF bands. This is proving to be problematic due to the loss of institutional knowledge as older amateur radio operators who designed and built APRS and other AX.25-based packet networks abandon the hobby or pass away. The purpose of this document is to collect and curate a sufficient body of k

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