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Dissertations / Theses on the topic 'GLONASS'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Mahdere, Yafet. "Egenskap och precision av GNSS BeiDou, Navstar (GPS), GLONASS samt kombinationen av GPS/GLONASS." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-83207.

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Eftersom att både GNSS GPS och GLONASS har många likheter så finns möjlighet att utnyttja systemen i kombination. Dock föreligger olikheter vilket gör att systemen inte är fullkomlig kompatibla med varandra. Diskrepans i koordinater och tidsram utgör ett stort hinder för att kombinera dessa system. Men lösningar för koordinatstransformering har tagits fram för att eliminera dessa divergenser (Roßbach, 2001) BeiDou GNSS system till skillnad från GNSS GPS/GLONASS är ett av det senaste etablerade navigationssystem, vilket ställer frågor för användare om systemets kvalitéer och brister. Denna stud

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2

Habrich, Heinz. "Geodetic applications of the global navigation satellite system (GLONASS) and of GLONASS/GPS combinations /." [S.l.] : [s.n.], 1999. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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3

Aronsson, Anders. "Bidrar GLONASS till bättre positionering?" Thesis, Karlstads universitet, Fakulteten för humaniora och samhällsvetenskap (from 2013), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-28316.

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Från den 1 april 2006 gavs möjligheten att använda GLONASS-systemet vid NRTK-mätningar som dessförinnan enbart använde sig av GPS-systemet. Allt fler inbyggda positioneringstjänster i vår nya teknik går nu mot att börja använda sig av både GPS och GLONASS-systemen. Tillgången till både amerikanska och ryska satelliter borde göra att vi får bättre, mer exakta och stabila mätningar vid dåliga förhållanden. Men är verkligen följden av att använda fler satelliter lösningen, eller räcker det i vissa tillfällen med enbart GPS-satelliter. Är den mer utbreda användningen av GLONASS-satelliter bara mar

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4

Baker, David Frederick. "The performance of hybrid GPS and GLONASS." Thesis, University of Nottingham, 2001. http://eprints.nottingham.ac.uk/11268/.

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In recent years, the market served by satellite positioning systems has expanded exponentially. It is stimulated by the needs of an ever increasing number and variety of scientific, business and leisure applications. The dominant system is the USA's GPS, or Global Positioning System. However, GPS is not a panacea for all positioning tasks, in any environmental situation. For example, two of the fastest growing applications, vehicle tracking and personal location, operate in an often harsh signal reception environment. This can be so severe that even with the current 29 working satellites, GPS

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5

Swann, John W. "Advantages and problems of combining GPS with GLONASS." Thesis, University of Nottingham, 1999. http://eprints.nottingham.ac.uk/11284/.

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The Global Positioning System (GPS) has been an undoubted success and a great many applications have benefited from it. It does however have limitations, which make its use in certain environments, and for certain tasks, difficult or indeed impossible.In recent years a second satellite based navigation system, the Global'naya Navigatsionnaya Sputnikov Sistema (GLONASS) has become increasingly available. A great deal of interest has been expressed in combining both these systems, in the hope that combined GPS/GLONASS technology will present significant benefits under conditions where GPS alone

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6

Hui, Liu, and Zhang Qishan. "ANALYSIS ON THE COVERAGE CHARACTERISTICS OF GLONASS CONSTELLATION." International Foundation for Telemetering, 1999. http://hdl.handle.net/10150/606822.

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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>The coverage characteristics of the GLONASS constellation is analyzed. The almanac data of GLONASS navigation message are used in the computation according to the operation of the satellites. The ground traces of the GLONASS satellites are plotted. And the probability of visible satellite number is calculated under different latitude conditions. The results are analyzed to give descriptions of the GLONASS constellation. And they are compared with those of GPS

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7

Hui, Liu, Cheng Leelung, and Zhang Qishan. "THE DESIGN OF C/A CODE GLONASS RECEIVER." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/609824.

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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>GLONASS is similar to GPS in many aspects such as system configuration, navigation mechanism, signal structure, etc.. There exists the possibility of receiving and processing GLONASS signals with GPS technology. The frequency plan of the GLONASS system is different from that of GPS. This makes the front-end of GLONASS receiver more complicated. The work here manifests our initial effort in GLONASS receiving. A design scheme is proposed of a C/A code GLONASS receiv

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8

Martin, Ian. "GNSS precise point positioning : the enhancement with GLONASS." Thesis, University of Newcastle upon Tyne, 2013. http://hdl.handle.net/10443/2192.

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Precise Point Positioning (PPP) provides GNSS navigation using a stand-alone receiver with no base station. As a technique PPP suffers from long convergence times and quality degradation during periods of poor satellite visibility or geometry. Many applications require reliable realtime centimetre level positioning with worldwide coverage, and a short initialisation time. To achieve these goals, this thesis considers the use of GLONASS in conjunction with GPS in kinematic PPP. This increases the number of satellites visible to the receiver, improving the geometry of the visible satellite const

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9

Reußner, Nico. "Die GLONASS-Mehrdeutigkeitslösung beim Precise Point Positioning (PPP)." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-202164.

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Precise Point Positioning (PPP) ermöglicht eine präzise Positionsbestimmung mittels globaler Satellitennavigationssysteme (Global Navigation Satellite System, GNSS) ohne die direkte Verwendung der Beobachtungsdaten von regionalen Referenzstationen. Die wesentlichste Einschränkung von PPP im Vergleich zu differenziellen Auswertetechniken (Real-Time Kinematic, RTK) ist die deutlich längere Konvergenzzeit. Voraussetzung für die Verkürzung der Konvergenzzeit ist die Festsetzung der geschätzten Mehrdeutigkeiten auf ganzzahlige Werte. Die Mehrdeutigkeitslösung verlangt ein robustes funktionales Mode

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10

Mohammed, Jareer Jaber. "Precise Point Positioning (PPP) : GPS vs. GLONASS and GPS+GLONASS with an alternative strategy for tropospheric Zenith Total Delay (ZTD) estimation." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/45468/.

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Different Global Navigation Satellite System (GNSS) constellations are available these days. This has led to an increase in the number of satellites available for the user, and that presents different performance levels for the user requirements like accuracy and convergence time. However, these benefits come from different constellations that have different reference times and for some, different frequencies. At the same time, the Precise Point Positioning (PPP) has also been presented as being a position solution within a certain level of accuracy and precision. Therefore, it is important to

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11

Євдокименко, В. Ю. "Синтезатор частоти коротко-хвильового діапазону системи ГЛОНАСС". Master's thesis, Cумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/75608.

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Робота містить: 91 сторінок, 46 рисунка, 17 таблиць, 26 джерел літератури. Об’єктом дослідження роботи є синтезатор частот короткохвильового діапазону для системи ГЛОНАСС. Мета роботи полягає у розробці приладу, який буде генерувати сигнали заданого діапазону частоти, матиме можливість швидкого перемикання робочих частот, високу стабільність та точність . У ході виконання роботи були розглянуті методи синтезу частот, різновиди їх структурних схем та їх реалізація на тих чи інших елементах. За основу було взято мікроконтролер AT89S51, апаратний драйвер MAX232 та система фазового автоматич

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12

Wallerström, Mattias, and Fredrik Johnsson. "En nätverks-RTK-jämförelse mellan GPS och GPS/GLONASS." Thesis, University of Gävle, Department of Technology and Built Environment, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-130.

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<p>Från den 1 april 2006 har SWEPOS kompletterat den befintliga nätverks-RTK-tjänsten, som dittills levererat RTK-data för GPS, med ett alternativ där RTK-data för GPS/GLONASS levereras. En del användare har rapporterat att de upplever att GPS/GLONASS inte tillför något och även att det ibland kan ta längre tid att få fixlösning. Andra användare hävdar att de nu kan använda nätverks-RTK på platser där de tidigare inte kunde mäta och är mycket positiva till GPS/GLONASS.</p><p>Syftet med detta examensarbete var att undersöka hur tillgängligheten för satellitmätning, positionsnoggrannheten och in

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13

Reisdorf, Pierre. "Satellitengestützte Fahrzeuglokalisierung in urbanen Gebieten mit GPS und GLONASS." Master's thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-91418.

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Navigationssysteme sollen nach Möglichkeit an jedem Ort und zu jeder Zeit funktionieren. Satellitennavigationssysteme unterliegen jedoch gewissen äußerlichen Einschränkungen, die die Positionierung erschweren oder erheblich verschlechtern. In einem urbanen Gebiet sind die Einflüsse auf die Positionierung mit Satellitensystemen durch die eingeschränkten räumlichen Verhältnisse besonders groß. Sowohl Mehrwege-Effekte wie auch die Verkleinerung des Sichtbereiches zu den Satelliten treten deutlich mehr auf. Mit der Verwendung von mehreren Satellitensystemen soll versucht werden, die Positionierung

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14

Peng, Song, Chen Xiao-yu, and Qi Jian-zhong. "Analysis of a Combined GLONASS/Compass-I Navigation Algorithm." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595792.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>Compass-I system is China has built satellite navigation system. It's a kind of regional position system according to the double-star position principle. Commonly, Compass-I system need adopt active position, in the paper several passive position methods are put forward. A combination navigation mode based on GLONASS and Compass-I passive navigation is proposed in this paper. The differences of coordinates

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15

Junior, Ney Luiz Montes. "Desenvolvimento de um pseudo-satélite para o sistema GLONASS." Instituto Tecnológico de Aeronáutica, 2006. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=297.

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Um pseudo-satélite para o GLONASS foi desenvolvido com o objetivo de dominar parte da tecnologia do sistema de posicionamento global da Federação Russa. Para alcançar este objetivo a implementação de um firmware, constituído pelas funções e operações a serem realizadas pelo pseudo-satélite referentes aos dados de navegação, bem como circuitos de geração e envio de dados, foi realizada. O firmware GLONASS foi carregado num circuito CPLD (complex programmable logic device), o que permitiu que fossem aplicados os conhecimentos adquiridos com o desenvolvimento do pseudo-satélite para o GPS. Result

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16

SILVA, Emanoel Gomes de Sousa. "Avaliação da qualidade do posicionamento por satélites com integração GPS/GLONASS." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/16121.

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Submitted by Haroudo Xavier Filho (haroudo.xavierfo@ufpe.br) on 2016-03-23T17:22:47Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissert_EmanoelGomes_vFinal (1).pdf: 3169112 bytes, checksum: 670b4efee57c1d0f5415070a594b6ca0 (MD5)<br>Made available in DSpace on 2016-03-23T17:22:47Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissert_EmanoelGomes_vFinal (1).pdf: 3169112 bytes, checksum: 670b4efee57c1d0f5415070a594b6ca0 (MD5) Previous issue date: 2015-03-06<br>CAPES<br>O posicionamento g

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17

Biron, Annie. "Intégration des systèmes de positionnement par satellites GPS et GLONASS." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ60616.pdf.

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18

Toluc, Ahmet Bayram. "Multi-GNSS Precise Point Positioning Using GPS, GLONASS and Galileo." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471490165.

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19

Carcanague, Sébastien. "Low-cost GPS/GLONASS Precise Positioning algorithm in Constrained Environment." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0004/document.

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Le GNSS (Global Navigation Satellite System), et en particulier sa composante actuelle le système américain GPS et le système russe GLONASS, sont aujourd'hui utilisés pour des applications géodésiques afin d'obtenir un positionnement précis, de l'ordre du centimètre. Cela nécessite un certain nombre de traitements complexes, des équipements coûteux et éventuellement des compléments au sol des systèmes GPS et GLONASS. Ces applications sont aujourd'hui principalement réalisées en environnement « ouvert » et ne peuvent fonctionner en environnement plus contraint. L'augmentation croissante de l'ut

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20

Peng, Senlin. "Implementation of Real-Time Software Receiver for Gps or Glonass L1 Signals." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/40873.

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<p>A 12 channel real-time GPS L1 C/A-code software receiver has been implemented on a Desktop with 1.84GHz Intel CPU. The software receiver has the capability to acquire new satellites coming in, keep tracking of satellites in view and give a user solution accuracy of 30 meters. This study also explores a real-time correlator for the GLONASS L1 signals. This software receiver is going to be used for scientiï¬ c research and education. This work is a part of the ongoing effort to develop a low-cost, ï¬ exible, and capable GNSS receiver for use as a scientiï¬ c instrument and for GNSS receiver t

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21

Keong, Jiun Han. "Determining heading and pitch using a single difference GPS/GLONASS approach." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0017/MQ49677.pdf.

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22

Jerez, Gabriel Oliveira [UNESP]. "Análise da integração GPS/GLONASS para posicionamento sob efeito de cintilação ionosférica." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150286.

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Submitted by Gabriel Oliveira Jerez null (gabrielojerez@gmail.com) on 2017-04-14T21:10:24Z No. of bitstreams: 1 Dissertação_Gabriel.pdf: 58918950 bytes, checksum: c672d2677b4cddee82e8492deec6b6f9 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-04-18T14:47:18Z (GMT) No. of bitstreams: 1 jerez_go_me_prud.pdf: 58918950 bytes, checksum: c672d2677b4cddee82e8492deec6b6f9 (MD5)<br>Made available in DSpace on 2017-04-18T14:47:18Z (GMT). No. of bitstreams: 1 jerez_go_me_prud.pdf: 58918950 bytes, checksum: c672d2677b4cddee82e8492deec6b6f9 (MD5) Previous is

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Jerez, Gabriel Oliveira. "Análise da integração GPS/GLONASS para posicionamento sob efeito de cintilação ionosférica /." Presidente Prudente, 2017. http://hdl.handle.net/11449/150286.

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Orientador: Daniele Barroca Marra Alves<br>Banca: João Francisco Galera Monico<br>Banca: Claudinei Rodrigues de Aguiar<br>Resumo: Com o desenvolvimento dos sistemas globais de navegação por satélite as atividades que envolvem posicionamento passaram por uma revolução. Os pioneiros, GLONASS (GLObal NAvigation Satellite System) e GPS (Global Positioning System), são atualmente os principais sistemas, e únicos com constelação completa. A utilização combinada de dados GPS e GLONASS passou por uma perda de interesse no final da década de noventa devido à rápida degradação que o GLONASS sofreu. Poré

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24

Sanscartier, Julien. "Développement d'un outil photogrammétrique pour la reconnaissance de nouveaux sites GPS et Glonass." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0006/MQ44956.pdf.

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25

Michaud, Stéphanie. "Investigation d'une nouvelle approche de positionnement relatif temporel avec GPS et avec GLONASS." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0027/MQ51153.pdf.

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26

Deliktas, Hilmi Can. "Investigation on the contribution of GLONASS observations to GPS Precise Point Positioning (PPP)." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468936251.

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27

Bäckström, Arvid, and Fredrik Gustafsson. "Galileo i jämförelse med GPS och GLONASS vid deformationsmätning : En fallstudie på Gävle flygplats." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30279.

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Global Navigation Satellite System (GNSS) är ett samlingsbegrepp för ett antal satellitsystem som möjliggör världsomspännande navigering, deformationsövervakning och satellitpositionering. GNSS innefattar de fyra globala operativa satellitsystem BeiDou, Global Positioning System (GPS), Globalnaya navigatsionnaya sputnikovaya sistema (GLONASS) och det europeiska Galileo. Satellitsystemet Galileo utökas successivt och erbjuder i nuläget 22 aktiva satelliter, men ska innefatta totalt 30 satelliter när det beräknas vara fullbordat år 2020. Syftet med föreliggande studie är att utvärdera Galileo un

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28

Sälg, Daniel, and August Hjorter. "Undersökning av GNSS flervägsfel på campusområdet vid Högskolan i Gävle." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30443.

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Multipath error is a source of uncertainty within GNSS (Global Navigation Satellite System) where signals are reflected on various surfaces before they reach the receiver. The phenomenon causes a delay in the receiver when the reflected signal travels a longer distance than the direct one. Despite the fact that there is a good knowledge of the error, multipath effects are still a complex subject since its origin varies a lot. This has led to a number of different methods being developed for the purposes to distinguish and treat the error. The main goal of this study is to investigate the size

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29

Johansson, Daniel, and Sören Persson. "Kommunikationsalternativ för nätverks-RTK : - virtuell referensstation kontra nätverksmeddelande." Thesis, Högskolan i Gävle, Institutionen för teknik och byggd miljö, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-3769.

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Vid användning av nätverks-RTK behöver driftcentralen kommunicera med användarens GNSS-mottagare på ett effektivt sätt oberoende av fabrikat. Av den anledningen finns ett standardiserat format för överföring av data som är utvecklat av RTCM (The Radio Technical Commission for Maritime Services). 2006 publicerades version 3.1 som stödjer utsändning av s.k. nätverksmeddelande som innebär att komprimerade observationsdata skickas till mottagaren för beräkning av korrektioner. För att bestämma GNSS-mottagarens position används i dagsläget till största delen VRS-tekniken (Virtual Reference Station)

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Carcanague, Sébastien. "Algorithme de positionnement précis en environnement contraint basé sur un récepteur bas-coût GPS/GLONASS." Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2013. http://tel.archives-ouvertes.fr/tel-00951914.

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Le GNSS (Global Navigation Satellite System), et en particulier sa composante actuelle le système américain GPS et le système russe GLONASS, sont aujourd'hui utilisés pour des applications géodésiques afin d'obtenir un positionnement précis, de l'ordre du centimètre. Cela nécessite un certain nombre de traitements complexes, des équipements coûteux et éventuellement des compléments au sol des systèmes GPS et GLONASS. Ces applications sont aujourd'hui principalement réalisées en environnement " ouvert " et ne peuvent fonctionner en environnement plus contraint. L'augmentation croissante de l'ut

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31

Norris, Natasha Louise. "Implementation of Multi-Constellation Baseline Fault Detection and Exclusion Algorithm Utilizing GPS and GLONASS Signals." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1535028817622931.

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32

Ventorim, Bruno Guimarães. "Avaliação do desempenho dos sistemas GPS e GLONASS, no posicionamento por ponto preciso online, combinados e individualmente." Universidade Federal de Viçosa, 2015. http://www.locus.ufv.br/handle/123456789/6537.

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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2015-11-05T09:55:12Z No. of bitstreams: 1 texto completo.pdf: 10945658 bytes, checksum: cda37f1f3266dca2e839ee6a81d333b6 (MD5)<br>Made available in DSpace on 2015-11-05T09:55:12Z (GMT). No. of bitstreams: 1 texto completo.pdf: 10945658 bytes, checksum: cda37f1f3266dca2e839ee6a81d333b6 (MD5) Previous issue date: 2015-05-29<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Dentre os sistemas que compõe o GNSS (Global Navigation Satellite System), o GPS (Global Positioning System) e o GLONASS (Global’naya

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33

Hewitson, Steve Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Quality control for integrated GNSS and inertial navigation systems." Awarded by:University of New South Wales. Surveying and Spatial Information Systems, 2006. http://handle.unsw.edu.au/1959.4/25534.

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The availability of GPS signals is a major limitation for many existing and potential applications. Fortunately, with the development of Galileo by the European Commission (EC) and European Space Agency (ESA) and new funding for the restoration of the Russian GLONASS announced by the Russian Federation the future for satellite based positioning and navigation applications is extremely promising. This research primarily investigates the benefits of GNSS interoperability and GNSS/INS integration to Receiver Autonomous Integrity Monitoring (RAIM) from a geometrical perspective. In addition to the

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34

Cheng, Chao-heh. "Calculations for positioning with the Global Navigation Satellite System." Ohio : Ohio University, 1998. http://www.ohiolink.edu/etd/view.cgi?ohiou1176839268.

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Reußner, Nico [Verfasser], Lambert [Akademischer Betreuer] Wanninger, Matthias [Akademischer Betreuer] Becker, and Mirko [Akademischer Betreuer] Scheinert. "Die GLONASS-Mehrdeutigkeitslösung beim Precise Point Positioning (PPP) / Nico Reußner. Betreuer: Lambert Wanninger. Gutachter: Lambert Wanninger ; Matthias Becker ; Mirko Scheinert." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://d-nb.info/110035610X/34.

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Bastos, Alex Souza. "ANALYSIS OF SIGNAL INTERRUPTION PROBABILITY FOR GNSS UTILIZATION IN FOREST CONDITIONS." Kyoto University, 2013. http://hdl.handle.net/2433/180519.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第17902号<br>農博第2025号<br>新制||農||1017(附属図書館)<br>学位論文||H25||N4798(農学部図書室)<br>30722<br>京都大学大学院農学研究科森林科学専攻<br>(主査)教授德地直子, 教授吉岡崇仁, 准教授長谷川尚史<br>学位規則第4条第1項該当

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Albert, Matej. "Víceúčelový alarm na kolo." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-401958.

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This diploma project is about designing a concept of an anti-theft tracking device for a bicycle. The device is equipped with a GNSS module for tracking of current location, GSM module for sending the location data in case of a theft and a BT module for user settings via mobile phone. The bike theft detection is detected by an accelerometer. The final goal of this project is a concept of such a device for evaluation and improvement purposes.

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Kučera, Tomáš. "Algoritmy výpočtu polohy, rychlosti a času z GNSS signálů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220272.

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This master thesis describes the principles of the Global Navigation Satellite System GNSS, specifically the GPS, GLONASS and Galileo systems. The thesis analyzes the structure of individual GNSS subsystems and introduces their properties. The algorithm for calculating the position is designed in the interactive programming environment MATLAB for the processing of GPS and GLONASS sampled signals. The position is calculated by a distance measurement method which searches for the intersection of spherical surfaces. The calculation is designed for four satellites and when more satellites are dete

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Jean, Marc Henri. "Multi-Constellation GNSS Scintillation at Mid-Latitudes." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/73704.

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Scintillation of Global Positioning Systems (GPS) signals have been extensively studied at low and high latitude regions of the Earth. It has been shown in past studies that amplitude scintillation is severe at low latitudes and phase scintillation is severe at high latitudes. Unlike low and high latitude regions, mid-latitude scintillation has not been extensively studied. Further, it has been suggested that mid-latitude scintillation is negligible. The purpose of this research is to challenge this belief. A multi-constellation and multi-frequency receiver, that tracks American, Ru

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Ritchie, Douglas Allen. "Factors That Affect the Global Positioning System and Global Navigation Satellite System in an Urban and Forested Environment." Digital Commons @ East Tennessee State University, 2007. https://dc.etsu.edu/etd/2089.

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The purpose of this study was to evaluate the accuracy in real time measurements acquired from GPS and GLONASS satellite observations using RTK techniques in an urban and forested environment. To determine this accuracy, 2 data sets of 3-dimensional coordinates were created and compared at 14 stations situated at East Tennessee State University. One data set included coordinates determined by conventional land survey methods; the second was solved by RTK GPS/GLONASS. Once the magnitude of any deviation in the coordinate positions was determined, the contributions to the accuracies from cycl

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Jurajda, David. "Modul kombinované globální satelitní navigace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220291.

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The thesis objective is design of methodology focused on accuracy measurement in field of GPS/GLONASS receivers. Text is devided into five main parts. The first one is focused on GNSS technology. Second one deals with used coordinate systems and map projections (ETRS89, WGS84, UTM, Gauss-Krüger). Next part discusses statistical methods. Part four is focused on hardware. Then the final part describes experiment realization and obtained data analysis.

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Lee, Shane-Woei. "A carrier phase only processing technique for differential satellite-based positioning systems." Ohio : Ohio University, 1999. http://www.ohiolink.edu/etd/view.cgi?ohiou1181175000.

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Pafkovič, Roman. "Přehled a porovnání principů činnosti současných druhů GNSS ve světě." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401510.

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Master’s thesis deals with global navigation satellite systems. It gathers information about operation principles of individual systems and evaluates their applicability for Air transportation through own measures.

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Strizic, Luka. "Crowdsourcing GNSS Jamming Detection and Localization." Thesis, Luleå tekniska universitet, Rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-66839.

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Global Navigation Satellite Systems (GNSS) have found wide adoption in various applications, be they military, civilian or commercial. The susceptibility of GNSS to radio-frequency interference can, thus, be very disruptive, even for emergency services, therefore threatening people's lives. An early prototype of a system providing relatively cheap widescale GNSS jamming detection, called J911, is explored in this thesis. J911 is smartphone-based crowdsourcing of GNSS observations, most interesting of which are carrier-to-noise-density ratio (<img src="http://www.diva-portal.org/cgi-bin/mimetex

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Ondráš, Michal. "Anténa a LNA pro vícepásmový přijímač GNSS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400543.

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This project describesa microwave antenna for GNSS and low noise amplifier. Mikrostrip antenna is a modern type of antenna. This mikrostrip antenna is Dual – band antenna with circual polarization. The thesis describes how to make anantenna, what a circular polarization is, whata patch antenna is and what GNSS is. Low noise amplifier amplifies the antenna output signal.

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Szabó, Michal. "Vývojový prostředek pro lokalizaci." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442522.

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This document describes a device capable to determine geographical position thanks to its GNSS module and measure the change of movement with the help of an accelerometer and gyroscope. Outputs of these integrated circuits are combined, data are processed and fused thanks to a numerical integration and mathematical filters. Results are stored on a memory card. The whole development is described from a concept, through the making of the device and software algorithms to the testing of its functions.

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Jokešová, Markéta. "Možnosti využití GPS při analýze silničních nehod." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232609.

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Diploma thesis deals with the possibilities of using GPS when analysing road accidents. The history and structure of U.S. global positioning system, Russian GLONASS system and European Galileo system are described. GPS receivers are sorted out by the possibility of use. The thesis deals with the methods of refinement GPS and how the vehicles can be monitored using GPS. In the practical part of this diploma thesis measurements with several types of navigations were made. And a comparison of accuracy of measured data with the real situation where the car was found at the moment of measuring foll

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Roussel, Nicolas. "Application de la réflectométrie GNSS à l'étude des redistributions des masses d'eau à la surface de la terre." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30327/document.

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La réflectométrie GNSS (ou GNSS-R) est une technique de télédétection originale et pportuniste qui consiste à analyser les ondes électromagnétiques émises en continu par la soixantaine de satellites des systèmes de positionnement GNSS (GPS, GLONASS, etc.), qui sont captées par une antenne après réflexion sur la surface terrestre. Ces signaux interagissent avec la surface réfléchissante et contiennent donc des informations sur ses propriétés. Au niveau de l'antenne, les ondes réfléchies interfèrent avec celles arrivant directement des satellites. Ces interférences sont particulièrement visibles

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Yen, Shih-Wei. "Two-Satellite Positioning with a Stable Frequency Reference, Altimeters, and Bistatic Satellite Altimetry." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1483462536143397.

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Antoja, Lleonart Guillem. "New Generation 4-Channel GNSS Receiver : Design, Production, and Testing." Thesis, Luleå tekniska universitet, Rymdteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-67420.

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Due to the current research needs and the lack of commercial multi-channel, multi-constellation GNSS receivers, a two-board solution has been developed so it can be mated with and take advantage of the processing power of the FPGA board branded as MicroZed. In order to achieve the proposed goals, an initial phase for assessing and updating the older design, building, and testing of SiGe modules (including both the electronics and casings) has been carried out. The results included demonstrate performances at logging GPS-L1 data with similar C/N0 and AGC values as the previous versions of the m

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