Relevant bibliographies by topics / Trilateration / Dissertations / Theses
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Dissertations / Theses on the topic 'Trilateration'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Moleski, Travis W. "Trilateration Positioning Using Hybrid Camera-LiDAR System." Ohio University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1628267212548992.

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2

Karlsson, Tom, and Mike Persson. "Outdoor localization in long range WSN using trilateration." Thesis, Linköpings universitet, Fysik och elektroteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-141689.

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This thesis report investigates how good position estimations that can be done outdoors with received signal strength indication (RSSI) trilateration for sub 1-GHz radio nodes. A custom network and an empirical distance model have been created as well as a technique for weighting multiple distance estimations, using wrapped normal probability density functions. The developed localization system was tested on an open area of one square kilometer, to estimate a node’s position on various locations. To evaluate the localization system, mean and median error of the estimated positions were calcula
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3

Dawood, Sivan, and Catharina Frindt. "Bluetooth Low Energy using Trilateration with Anybus Wireless Bolt." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-39733.

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4

Carlsson, Anton, Filip Gölander, and Fredrik Sandelin. "User Configurable Indoor Positioning System using WiFi Trilateration and Fingerprinting." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-323355.

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The use of smartphones for positioning and navigation is mostly limited to outdoor settings. Indoors, where GPS signals are too inaccurate for positioning, an alternative must be used. This project aimed at producing an indoor positioning system which could be both configured and used by an end user organization without equipping its buildings with proprietary hardware. The prerequisites were that a complete digital representation of the building floors is available, and that the floors have a sufficient amount of WiFi access points. Our system measures radio signal strength from existing WiFi
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Nygård, Niklas. "Indoor positioning utilizing Bluetooth Smart : A comparative study between trilateration and fingerprinting." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-178968.

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This thesis explores the possibilities of constructing an indoor positioning system based on Bluetooth Smart technology. Two non-trainable trilateration approaches and two trainable fingerprinting were implemented and evaluated at Mobiento's offices in Stockholm, Sweden. A trilateration approach is based on finding a sought location based on known distances towards know locations, at least three locations and distances are needed. A fingerprinting approach is based on creating a radio map, which describes transmission signals within the room, towards different transmitters. A set amount of coo
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Yang, Bowen. "Development of a Self-Calibrated Motion Capture System by Nonlinear Trilateration of Multiple Kinects v2." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35321.

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In this paper, a Kinect-based distributed and real-time motion capture system is developed. A trigonometric method is applied to calculate the relative positions of Kinect v2 sensors with a calibration wand and register the sensors’ positions automatically. By combining results from multiple sensors with a nonlinear least square method, the accuracy of motion capture is optimized. Moreover, to exclude inaccurate results from sensors, a computational geometry is applied in the occlusion approach to discover occluded joint data. The synchronization approach is based on the NTP protocol, which sy
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7

Niu, Kayla, Asif Shahidullah, Andrea Bilarasau, James Ringle, Michaelina Sorrell, and Luke Zurmehly. "A Low Cost Open-Air Tracking System Based on an Empirical Path-Loss Model." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596380.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV<br>Tracking small marmosets over a large area represents a significant challenge for researchers. The native habitat for such animals are generally unsuitable for GPS based location systems, and the size of the animals prevents large, feature-rich collars from being utilized. Additionally, costs and feasibility prevent researchers from continuously monitoring these animals on the ground. This paper p
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Johansson, Mathias, and Mikael Karlsson. "Utvärdering av inomhuslokalisering med Bluetooth Low Energy." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Data- och elektroteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26788.

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Wireless communication is becoming more common, a relatively new technology within the area is Bluetooth Low Energy. It’s been developed to be energy efficient and in regard to compatibility. Alongside the growth of wireless technology, scientists and companies are looking for new areas of use. One of these is localization, which means to determine the position of a moving device with the use of stationary devices, an example of this would be GPS.This report means to evaluate indoor localization using Bluetooth Low Energy and was made for Combitech AB in Jönköping. The purpose of the work was
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9

Pehrson, Skidén Petter. "Range Based Indoor Localization in Wireless Sensor Networks with Telos." Thesis, Linköpings universitet, Kommunikationssystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-91844.

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Localization of individual nodes in a wireless network is useful in many applications, e.g for tracking patients in hospitals. Using the Received Signal Strength Indicator, RSSI, for this purpose has been explored in numerous studies. It is energy efficient and rarely requires customised hardware of configuration. The possibility to use pre-configured, off-the-shelf products is especially important in large scale sensor network deployments. Using RSSI has, however, many drawbacks, since the radio signal is heavily affected by the surrounding envi- ronment. Most studies in this area discuss the
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Hörnlund, Emil, and Rasmus Schenström. "Indoor Location Surveillance : Utilizing Wi-Fi and Bluetooth Signals." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-17978.

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Personal information nowadays have become valuable for many stakeholders. We want to find out how much information someone can gather from our daily devices such as a smartphone, using some budget devices together with some programming knowledge. Can we gather enough information to be able to determine a location to a target device? The main objectives of our bachelor thesis is to determine the accuracy of positioning for nearby personal devices using trilateration of short-distance communications (Wi-Fi vs Bluetooth). But also, how much and what information our devices leak without us knowing
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11

Engström, Hugo. "Trilateration för nybörjare : En studie om text och bild i samverkan för att förklara komplexa tekniker för konsumenter." Thesis, Mälardalens högskola, Innovation och produktrealisering, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55023.

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Detta examensarbete inom ämnet informationsdesign med inriktning textdesign, fokuserar på hur text och bild samverkar. Studien har genomförts för att ta reda på hur text och bild kan samverka inom texttypen teknikinformation. Kunskapen ska sedan appliceras på förklarande texter med syfte att hjälpa användare att förstå hur komplexa tekniker fungerar. I detta fall tekniken GPS. Tidigare forskning visar att användare verkar kombinera informationen från text och bild i en och samma mentala modell. Alltså deras egen representation av informationsmaterialet de tagit del av. Det har oc
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Fredin, Elias. "GNSS undersökning : För bättre precision i smartphones." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-36584.

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To be able to receive a position from a smartphone user is very valuable. Wit- hout this many applications would not work at all. For many applications the existing position libraries are not good enough, for example augmented reality applications which requires millimeter precision for a good experience. The goal of this report is to study if GNSS positioning can be improved for smartphones.The study focuses mostly on Android and has the goal of using the method “trilateration” to combine multiple satellites position and their distance to a receiver in order to calculate a real position. The
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Nelson, Evan, Charles D. Creusere, and Eric Butcher. "Determination of Position Around Near-Earth Asteroids Using Communication Relays." International Foundation for Telemetering, 2014. http://hdl.handle.net/10150/577469.

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ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CA<br>In this paper we consider the possibility of using a communications system that is operating between probes on the surface of an asteroid and an orbiting satellite to more accurately determine spatial positions. This is done by measuring the round trip communication delay between the orbiter and various surface probes to estimate distance. From these distance measurements, the position can
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14

Hennig, Matthias, Henri Kirmse, and Klaus Janschek. "Global Localization of an Indoor Mobile Robot with a single Base Station." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-83687.

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The navigation tasks in advanced home robotic applications incorporating reliable revisiting strategies are dependent on very low cost but nevertheless rather accurate localization systems. In this paper a localization system based on the principle of trilateration is described. The proposed system uses only a single small base station, but achieves accuracies comparable to systems using spread beacons and it performs sufficiently for map building. Thus it is a standalone system and needs no odometry or other auxiliary sensors. Furthermore a new approach for the problem of the reliably detecti
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15

Yang, Lin. "3D Sensing and Tracking of Human Gait." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32540.

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Motion capture technology has been applied in many fields such as animation, medicine, military, etc. since it was first proposed in the 1970s. Based on the principles applied, motion capture technology is generally classified into six categories: 1) Optical; 2) Inertial; 3) Magnetic; 4) Mechanical; 5) Acoustic and 6) Markerless. Different from the other five kinds of motion capture technologies which try to track path of specific points with different equipment, markerless systems recognize human or non-human body's motion with vision-based technology which focuses on analyzing and processing
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16

Galbraith, Andrew. "Multilateration in Direct ShortRange Communications Networks : Utilising Basic Safety Messages and Received Signal Strength Ranging." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97682.

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Traditional satellite positioning systems have limited resolution and have proved inaccuratein areas such as urban canyons where signals are subject to bounce phenomena or indeed may be entirely unavailable. An alternative method of positioning is that of tri/multilateration, which uses known positions and distances from beacon points to locate a receiver. In this project, a software was developed which used DSRC Basic Safety Messages (containing locational information) in combination with Received Signal Strength metrics (translated to distance information) to carry out such positioning in st
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17

Ljung, Alexander, and Hannes Knutsson. "Cost-Effective Positioning based on WiFi-Probes: A Quantitative Study : Deriving the Position of a Smartphone using the Signal Strength of WiFi-Probes." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16776.

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In the modern society, almost everyone has a smartphone. These devices tend to almost always use WiFi-networking. For the device to identify nearby WiFi access points it has to send out WiFi probing broadcasts. Nearby access points respond to these broadcasts in order to let the device know that they are within reach. This technique is called active scanning. This paper aims to answer if it is possible to use the signal strength of these broadcasts to localize the device transmitting them. We are interested in the possibility of creating this kind of system and the accuracy that it would be ab
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18

Kulkarni, Suyash M. "Mobile Robot Localization with Active Landmark Deployment." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535702460399878.

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19

Altmann, Peter, Roger Löf, and Johannes Nilsson. "Utveckling av en transponder." Thesis, Halmstad University, School of Business and Engineering (SET), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2777.

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20

Capalini, Richard. "Lokalizace uzlů v seznorové síti ZigBee." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237127.

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The master thesis is concerned with problem of localization of nodes in wireless sensor network WSN implemented by ZigBee technology. The thesis provide description of ZigBee architecture involving signal description. The method of evaluating coordinates basically do not depend on used measuring methods. The method  of fingerprinting is included in separated category based on only statistical processing of RSSI data. Determination of coordinates of mobile node always needs finding out range, signal time of arrival (ToA) or angle of arrival (AoA) in respect to anchors node given dimension magni
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Juračka, Jan. "Výzkum systému GPS pro lokalizaci bezdrátových senzorových uzlů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219923.

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Theme of the thesis is research and possibility of using GPS system from localization in wireless sensor network. Paper deals with the accuracy and energy consumption of GPS localization. Thesis also solve using of localization in local anchor system. Theoretical part describes IEEE 802.15.4 standard, capability of used nodes and describe ways how to use RSSI value to resolve location
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Ariza, Olarte Julieth Katherin. "Proposta de sistem de localização em redes de sensores sem fio utilizando o teorema de Bayes." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/105069.

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O crescimento na utilização de redes de sensores sem fio possibilitou desenvolver melhorias para atender as necessidades da indústria de comunicação de dispositivos em função de diversas vantagens relacionadas a baixo custo, baixo consumo de energia, mobilidade, instalação e configuração de novos dispositivos, além disso, criar funcionalidades adicionais, como por exemplo, localização de engenheiros de campo e ativos em ambientes industriais. O protocolo WirelessHART é um padrão aberto de comunicação sem fio que busca atender a estes requisitos. Neste trabalho é apresentado o estudo e desenvol
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Hassan, Ali, and Anna Ahlquist. "Using BLE mesh network for indoor tracking." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20961.

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Internet of Things ger människor möjligheter att genom tjänster dra nytta av sensorer och andra enheter som tillsammans skapar ett brett utbud av lösningar som smart hem, smart transport, äldreomsorg och mycket mer. Den senaste innovationen av Bluetooth SIG är Bluetooth mesh topologi som tillåter att ansluta trådlösa enheter i ett många till många förhållanden. I denna avhandling utvecklade vi ett inomhusspårningssystem baserat på Bluetooth Low Energy teknik och mesh topologi för att undersöka de potentiella fördelar som Bluetooth Low Energy nätverk har att erbjuda för inomhusspårningssysteme
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Alkeryd, Martin. "Evaluation of Position Sensing Techniques for an Unmanned Aerial Vehicle." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6298.

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<p>The use of Unmanned Aerial Vehicles (UAVs) has rapidly increased over the last years. This has been possible mainly due to the increased computing power of microcontrollers and computers. An UAV can be used in both civilian and military areas, for example surveillance and intelligence. The UAV concerned in this master's thesis is a prototype and is currently being developed at DST Control AB in Linköping.</p><p>With the use of UAVs, the need for a positioning and navigation system arises. Inertial sensors can often give a good position estimation, however, they need continuous calibration d
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Rupanagudi, Sai Kiran. "A Platform for Research on Localization and Tracking Using Wireless Sensor Networks." Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/3756.

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This research proposed the integration of wireless sensor networks, a mobile platform and a fixed station for the development of a test bed system to conduct research on localization, tracking, navigation and network mapping. The overall integrated system acts as a basis for future research on localization of wireless nodes in an indoor environment. The system enables the transfer of information from the sensor node on the platform to a distant computer through wireless communication. In addition, a robotic platform is proposed that uses the developed integrated system as well as other potenti
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Whitney, Ann M. "INDOOR-WIRELESS LOCATION TECHNIQUES AND ALGORITHMS UTILIZING UHF RFID AND BLE TECHNOLOGIES." UKnowledge, 2019. https://uknowledge.uky.edu/me_etds/138.

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The work presented herein explores the ability of Ultra High Frequency Radio Frequency (UHF RF) devices, specifically (Radio Frequency Identification) RFID passive tags and Bluetooth Low Energy (BLE) to be used as tools to locate items of interest inside a building. Localization Systems based on these technologies are commercially available, but have failed to be widely adopted due to significant drawbacks in the accuracy and reliability of state of the art systems. It is the goal of this work to address that issue by identifying and potentially improving upon localization algorithms. The work
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Tománek, Daniel. "Zvýšení přesnosti a robustnosti bezdrátových lokalizačních technik." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221140.

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The main theme of this thesis are problems of locating of wireless units in localization systems represented by wireless sensor networks. The thesis describes principle of trilateration and Levenberg-Marquardt algorithm. The main theme of this thesis is simulation of behavior of localisation systems and possible optimization of localization.
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Razzaq, Muhammad Salman. "A study of Machine Learning Techniques for Multi-Floor Indoor Localization using Wifi Fingerprinting." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24101/.

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Indoor localization has recently increased interest due to the potential wide range of services by leveraging the Internet of Things (IoT) and ubiquitous connectivity. Different techniques, wireless technologies and mechanisms have been proposed in the literature to provide indoor localization services to improve the services provided to the users. The constraint with the commonly used fingerprinting approach is the high variation of RSSI values, resulting in erroneous location estimation. The machine learning approach is a new addition to the fingerprinting system that aims to solve this pr
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Kohlbacher, Anton. "Development of a Novel Relative Localization Sensor." Thesis, Luleå tekniska universitet, Rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65515.

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By enabling coordinated task execution and movement, robotic swarms can achieve efficient exploration or disaster site management. When utilizing Ultra-wideband (UWB) radio technology for ranging, the proposed relative localization sensor can be made lightweight and relatively indifferent to the ambient environment. Infrastructure dependency is eliminated by making the whole sensor fit on a swarm agent, while allowing for a certain amount of positional error. In this thesis, a novel algorithm is implemented in to constrained hardware and compared to a more traditional trilateration approach. B
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GARRAFFA, Giovanni. "Real Time Localization Systems for autonomous navigation: Modelling, Analysis and Control." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/514955.

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Questo lavoro di tesi riguarda la derivazione di osservatori ibridi dello stato, analisi e controllo, di sistemi di localizzazione e navigazione in tempo reale (RTLS). In particolare, il framework dei sistemi ibridi è stato utilizzato per tener conto delle dinamiche continue e discrete coinvolte nel processo di stima e della natura sporadica e tempo randomica delle misure provenienti da vari sensori di distanza e/o inerziali. Analisi di convergenza sono state effettuate per dimostrare la stabilità delle soluzioni proposte e la capacità di filtraggio dei rumori presenti nelle misure. Il present
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31

Björck, Linnea, and Johan Petersen. "Höjdmätare för fallskärmshoppning : Metoder för höjdmätning samt framtagning av algoritmer för vald metod." Thesis, KTH, Hälsoinformatik och logistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253057.

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Inom fallskärmshoppning behövs förutom ett välfungerande fallskärmssystem även en precis höjdmätare. Båda är avgörande komponenter när det gäller utrustning för att kunna genomföra ett säkert hopp. Genom digitalisering och den tekniska utvecklingen finns det idag intressen för att ta fram en digital höjdmätare med bättre precision, flera funktioner och bättre samt tydligare användargränssnitt. Det existerar ett flertal tekniker för mätning av höjd. De tekniker som tas upp i examensarbetet är global positioning system (GPS), radar och barometer. Målet med examensarbe
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Berg, Miguel. "Radio Resource Management in Bunched Personal Communication Systems." Doctoral thesis, KTH, Signals, Sensors and Systems, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3316.

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<p>The traditional way of increasing capacity in a wirelesscommunication system has been cell splitting and fixedchannel-allocation based on prediction tools. However, theplanning complexity increases rapidly with the number of cellsand the method is not suitable for the large temporal andspatial traffic variations expected in the future. A lot ofresearch has therefore been performed regarding adaptivechannel allocation, where a channel can be used anywhere aslong as the signal-to-interference ratio (SIR) is acceptable. Acommon opinion is that these solutions must be decentralizedsince a centr
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Persson, Lucas, and Sebastian Markström. "Indoor localization of hand-held Shopping Scanners." Thesis, KTH, Data- och elektroteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208931.

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This thesis investigates applicable indoor navigation systems for the next generation of hand-held shopping scanners, on behalf of the company Virtual Stores. The thesis research and review applicable indoor localization methods and ways to combine and evaluate received localization data in order to provide accurate navigation without introducing any other worn equipment for a potential user. Prototype navigation systems was proposed, developed and evaluated using a combination of carefully placed radio transmitters that was used to provide radio based localization methods using Bluetooth or U
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Sark, Vladica. "Radio frequency ranging for precise indoor localization." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/18800.

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In den letzten Jahrzehnten sind Satellitennavigationssysteme zu einem unverzichtbaren Teil des modernen Lebens geworden. Viele innovative Anwendungen bieten ortsabhängige Dienste an, welche auf diesen Navigationssystemen aufbauen. Allerdings sind diese Dienste in Innenräumen nicht verfügbar. Daher werden seit einigen Jahren alternative Lokalisierungsmethoden für Innenräume aktiv erforscht und entwickelt. Der Schwerpunkt dieser Arbeit liegt darauf, die Genauigkeit von Lokalisationsmethoden in Innenräumen zu erhöhen, sowie auf der effektiven Integration der entsprechenden Verfahren in drahtlose
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Nilsson, Max. "Performance Comparison of Localization Algorithms for UWB Measurements with Closely Spaced Anchors." Thesis, Luleå tekniska universitet, Rymdteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70996.

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Tracking objects or people in an indoor environment has a wide variety of uses in many different areas, similarly to positioning systems outdoors. Indoor positioning systems operate in a very different environment however, having to deal with obstructions while also having high accuracy. A common solution for indoor positioning systems is to have three or more stationary anchor antennas spread out around the perimeter of the area that is to be monitored. The position of a tag antenna moving in range of the anchors can then be found using trilateration. One downside of such a setup is that the
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Pekárek, Jan. "Snížení chyby odhadu pozice u inkrementálních lokalizačních technik." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218822.

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The diploma thesis describes localization of communications nodes in the Wireless Sensor Networks. This thesis contains basic algorithms for localization sensor's nodes as are Map-Growing and ABC (Assumption Based Coordinates). Then is chosen acceptable algorithm for simulation on random sensor networks. For research these problems is used software MATLAB. For a given the university's environment are researched appropriate algorithms with possible optimalization algorithms. The result of diploma thesis is a localization algorithm with initial multilateration system and this system is located i
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Medjdoub, Amina. "Étude et conception d'un capteur acoustique sphérique, miniaturisé, codé et autonome." Thesis, Valenciennes, 2014. http://www.theses.fr/2014VALE0019/document.

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La caractérisation et l’étude de l’homogénéisation temps réel d’un mélange de produits liquides ou solides présente une opération clé pour de nombreux domaines industriels.Dans le présent travail, nous proposons un modèle de capteur acoustique sphérique miniaturisé et autonome, adapté à des fonctions de caractérisations en ligne des milieux hétérogènes de différentes natures. Ce capteur a la possibilité d’être dispersé dans un système dynamique en constituant un réseau de capteurs géo-localisables permettant une cartographie des propriétés recherchées du milieu. Sa forme sphérique creuse nous
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Browne, Kenneth E. "Beacon tracking using a trilaterational approach." Connect to this title online, 2005. http://hdl.handle.net/1811/363.

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Thesis (Honors)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formattted into pages: contains iii, 34 p.; also includes graphics. Includes bibliographical references (p. 34). Available online via Ohio State University's Knowledge Bank.
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39

Pilbrow, Edward Neil. "Synthetic Aperture Sonar Micronavigation Using An Active Acoustic Beacon." Thesis, University of Canterbury. Electrical and Computer Engineering, 2007. http://hdl.handle.net/10092/1226.

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Synthetic aperture sonar (SAS) technology has rapidly progressed over the past few years with a number of commercial systems emerging. Such systems are typically based on an autonomous underwater vehicle platform containing multiple along-track receivers and an integrated inertial navigation system (INS) with Doppler velocity log aiding. While producing excellent images, blurring due to INS integration errors and medium fluctuations continues to limit long range, long run, image quality. This is particularly relevant in mine hunting, the main application for SAS, where it is critical to survey
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40

Helgesson, Dan, and Emelie Nilsson. "Comparison and implementation of IPS." Thesis, Linköpings universitet, Fysik och elektroteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110895.

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Innomhuspositioneringssystem kan med fördel användas i många olika tillämpningar, allt från sjukhus till shoppingcenter. Denna rapport behandlar olika tekniker och lösningar för att designa ett positioneringssystem. Rapporten tar även upp i detalj hur ett system kan konstrueras av ZigBee kombinerat med dödräkning.
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41

Gomes, Rui Pedro Lebreiro. "Fine-Grained localization system for indoor environments." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13534.

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Mestrado em Engenharia Electrónica e de Telecomunicações<br>The increasing demand for tracking solutions in indoor environments has led to the development of many indoor location systems based in the most diverse technologies. They are trying to fill a market niche left by the current available location systems such as the well-known Global Positioning System (GPS). These systems are limited to an outdoor usage due to the drastic attenuation of the GPS signals in closed areas and they cannot provide enough resolution to meet the requirements of certain applications. Therefore, it’s here propos
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42

Ge, Quanyi, and Yi Chai. "RFID Emergency System for Tumble Detection of Solitary People." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5462.

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RFID (Radio Frequency Identification) system is a wireless system without any kinds of mechanical or optical connection between identifying and detected objects. It consists of two basic devices: a reader and tag. Recently with the development of the technology, SAW-RFID (Surface Acoustic Wave Radio Frequency Identification) tags come into market with acceptable price, as well as its size tends to miniaturization. We propose to use 3D wireless indoor localization system to detect the position of the tags. The reader converts radio waves returned from the SAW-RFID tag into a form, which can be
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43

Al-Olimat, Hussein S. "Optimizing Cloudlet Scheduling and Wireless Sensor Localization using Computational Intelligence Techniques." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1403922600.

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44

Zhao, Xiaowei. "Détection et localisation de cibles derrière un mur avec un système radar ULB." Phd thesis, Université de La Rochelle, 2012. http://tel.archives-ouvertes.fr/tel-00829842.

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Le cadre de cette thèse est centré sur l'étude d'un radar ultra large bande (ULB) en mode impulsionnel, pour la " vision " à travers les murs (VAM), qui présente de nombreuses applications tant dans le domaine militaire (lors des assauts, des prises d'otages, ...) que dans le secteur de la sécurité civile (recherche de personnes dans des décombres, dans un incendie, ...). Pour ces utilisations, l'image réelle de la scène observée n'est pas nécessaire, seules certaines informations pertinentes suffisent : nombre de personnes, position, vitesse de déplacement, etc. C'est dans ce contexte que nou
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45

Kolarčík, Tomáš. "Detekce přítomnosti osob pomocí IoT senzorů." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-449175.

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The aim of this work was to create a module for home automation tools Home Assistant. The module is able to determine  which room is inhabited and estimate more accurate position of people inside the room. Known GPS location cannot be used for this purpose because it is inaccurate inside buildings and therefore one of the indoor location techniques needs to be used. Solution based on Bluetooth Low Energy wireless technology was chosen. The localization technique is the fingerprinting method, which is based on estimating the position according to the signal strength at any point in space, which
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Khalid, Ahmad. "A secure localization framework of RAIN RFID objects for ambient assisted living." Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/19518/1/KHALID_Ahmad.pdf.

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Internet of things (IoT) is currently on our doorsteps. Numerous domains have beneted from this technology. It ranges from a simple application such as identifying an object up to handling a more complex system. The Radio Frequency IDentication (RFID) is one of the enabling technologies that drive the IoT to its position today. It is small, cheap and does not require any additional power sources. Along with its ubiquitous functionality, this technology enables the positioning of an object within a specic area. Ambient Assisted Living (AAL) is one of the many domains that benet from the IoT. It
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Zarader, Pierre. "Transcranial ultrasound tracking of a neurosurgical microrobot." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS054.

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Dans l'objectif de traiter les tumeurs cérébrales difficilement accessibles avec les outils chirugicaux actuels, Robeauté développe un microrobot innovant dans l'objectif de naviguer dans les zones cérébrales profondes avec un minimum d'invasivité. L'objectif de cette thèse a été de développer et de valider un système de suivi ultrasonore transcrânien du microrobot afin de pouvoir implémenter des commandes robotiques et garantir ainsi la sûreté et l'efficacité de l'intervention.L'approche proposée consiste à placer trois émetteurs ultrasonores sur la tête du patient, et à embarquer un récepteu
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Lima, Davi Dantas. "Desvendando a matemática do GPS." Mestrado Profissional em Matemática, 2013. https://ri.ufs.br/handle/riufs/6507.

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The purpose of this monograph is to study the mathematical principles behind the Global Positioning System, the so-called GPS. We start with a historical approach of the evolution of this technology. Then we show some theorems in geometry: plane, spatial and analytic, which together with some physical principles (average speed, speed of light, the Doppler effect,...) guided the creators of this powerful tool that determines with remarkable accuracy the position (latitude, longitude and altitude) of a transmitter. Finally, we suggest activities to be performed at the level of basic education,
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Njima, Wafa. "Méthodes de localisation de capteurs dans le contexte de l'Internet des Objets." Electronic Thesis or Diss., Paris, CNAM, 2019. http://www.theses.fr/2019CNAM1264.

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Grace à l'émergence croissante de l'Internet des Objets et à l'importance de l'information de position dans ce contexte, lalocalisation attire de plus en plus d'attention dans la communauté des chercheurs. La localisation en extérieur est assuréepar le GPS qui n'est pas adapté aux environnements intérieurs. Plusieurs techniques de localisation en intérieur existent,mais il n'existe pas encore un standard. L'objectif de cette thèse est d'améliorer les techniques de localisation existantestout en maintenant un niveau de localisation satisfaisant avec une faible complexité de calcul. Afin de surm
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50

Marchi, Tommaso. "Position and singularity analysis of a class of n-RRR planar parallel robots." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Parallel robots with configurable platform are a class of parallel robots in which the end-effector is a closed-loop flexible chain of rigid links. We have developed a 5-RRR planar mechanism that features a flexible 5-bar chain as end-effector. The angles between adjacent sides of this chain can be controlled through the actuated revolute joints attached to the base of the mechanism. This thesis consists in the geometrical design of n-RRR planar parallel robots and in the study of the Direct Kinematics for 4-, 5- and 6-RRR mechanisms using Bilateration, a method that greatly reduces the comput
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