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Tytuł:
Shipborne satellite navigation systems receivers, exploitation remarks
Autorzy:
Januszewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/359849.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
GPS system
GPS receiver
shipborne GPS receiver
type of GPS receivers
Opis:
Currently (July 2014) an uninterrupted information about the ship’s position can be obtained from specialized electronic position-fixing systems, in particular, Satellite Navigation Systems (SNSs) as GSP and GLONASS and Satellite Based Augmentation Systems (SBASs) as EGNOS or WAAS. On each ship’s bridge one GPS stationary receiver is installed at least but on many ships there are two or even more GPS receivers. Nowadays, several hundred different end-user products and broad/chipset/modules are available on the world market, however for ship’s bridge several dozen models provided by a dozen or so manufacturers are designed only. In this paper 309 GPS receivers, 47 different models of 12 manufacturers installed on 188 ships of different types and with different lengths were taken into account. The relations between the type and the length of the ship, the number of the GPS receivers installed on one ship, the manufacturers and the models the most frequently used are presented.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 67-72
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Direct inventory taking of underwater objects using a handheld GPS receiver
Autorzy:
Popielarczyk, D.
Powiązania:
https://bibliotekanauki.pl/articles/224876.pdf
Data publikacji:
2011
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
GPS receiver
underwater object
underwater navigation
odbiornik GPS
obiekt podwodny
nawigacja podwodna
Opis:
The paper presents application of the GPS - Thales Mobile Mapper satellite navigation receiver for conducting the direct underwater inventory and location of objects on the bottom of inland water reservoirs. The design description of the measurement set consisting of the manual GPS/GIS receiver, specialist watertight casing with function keys and floating GPS antenna is presented. The possibilities of using the set directly in underwater navigation conducted by a scuba diver on shallow depth were investigated. The results of search for obstacles located earlier using the hydroacoustic methods: the single beam echo sounder (SBES) and sidescan sonar (SSS) were described. The analysis of accuracy of the underwater GPS navigation was also conducted.
Źródło:
Reports on Geodesy; 2011, z. 1/90; 383-390
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FPGA Implemetation of Acquisition Phase of the GPS Receiver Using XSG
Autorzy:
Hawary, Mohamed Ibrahiem El
Hamza, Gihan Gomah
Zekry, Abdelhalim
Motawie, Ibrahiem Mohamed
Powiązania:
https://bibliotekanauki.pl/articles/963910.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
GPS receiver
acquisition phase
SDR
Xilinx System Generator XSG
FPGA implementation
Opis:
In the past it was usual to exert a huge effort in the design, simulation, and the real time implementation of the complicated electronic and communication systems, like GNSS receivers. The complexity of the system algorithms combined with the complexity of the available tools created a system that is difficult to track down for debugging or for redesign. So, the simulation and educational tools was different from the prototyping tools. In this paper the parallel search acquisition phase of a GPS receiver was simulated and implemented on FPGA using the same platform and through a graphical programming language. So this paper introduces the fruit of integrating the prototyping tools with the simulation tools as a single platform through which the complicated electronic systems can be simulated and prototyped.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 4; 739-744
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A method for the estimation of sideslip angle for a vehicle equipped with a one-antenna GPS measuring system for steady state movement
Autorzy:
Pieniążek, Wiesław
Wolak, Stanisław
Janczur, Robert
Powiązania:
https://bibliotekanauki.pl/articles/263758.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
sideslip angle
heading angle
yaw angle
yaw rate
GPS receiver signals
Opis:
One-antenna GPS systems present no possibility for the direct determination of vehicle slip angle. This is an easy task for dual antenna systems; however, many users have this kind of apparatus. In this paper, a method of estimation of this parameter, which is important for the estimation of vehicle steerability factors, is proposed (e.g. TB factor calculated on the basis of data from input test [8]). The method is based on two parameters measured by a one-antenna GPS system; these are the heading angle created from the Doppler channel coming directly from the GPS engine, and the yaw rate measured by an IMU device integrated and cooperating with the GPS engine. The sideslip angle which was calculated according to the proposed method is compared with an equivalent angle calculated on the basis of data from a non-slip measurement of velocity components for selected point of vehicle acquired using. The presented method is illustrated with examples from real tests. In the author’s opinion, the sideslip angle calculated with the application of measurement data obtained from a one-antenna GPS device could be used in practice. From comparison with another upper mentioned method, it follows that the differences between average values of sideslip angles obtained from both considered methods is not greater than 8%.
Źródło:
Archiwum Motoryzacji; 2019, 84, 2; 137-146
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie pakietu Autodesk Land Solutions do opracowania projektów realizowanych techniką RTK GPS
Application of the Autodesk Land Solutions software package to elaboration of RTK GPS projects
Autorzy:
Uznański, A.
Powiązania:
https://bibliotekanauki.pl/articles/262265.pdf
Data publikacji:
2005
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
real time kinematic surveys
software SR530 GPS receiver
Autodesk Land Solutions
Opis:
W pracy przedstawiono wybrane możliwości zastosowania pomiarów RTK GPS z wykorzystaniem odbiorników SR530 firmy Leica z opcjonalnym oprogramowaniem inżynierskim do realizacji projektów geodezyjnych. Podano informacje na temat dostępnych opcji oprogramowania firmowego oraz możliwości odbiorników SR530 w zakresie współpracy z pakietem Autodesk Land Solutions w efektywniejszym opracowaniu danych geodezyjnych. Zamieszczono krótki opis aplikacji wchodzących w skład tego pakietu programów, akcentując możliwość współpracy w geodezyjnym opracowaniu danych dostarczonych z pomiarów techniką RTK GPS oraz w przygotowaniu danych do realizacji tą techniką.
The paper presents selected possibilities of use of the Leica SR530 GPS receivers, furnished with optional engineering application programs, in realization of surveying tasks. Actually available firmware options are described and possibilities of cooperation of the SR530 receivers with the Autodesk Land Solutions package in effective processing of survey data are discussed. Package applications are presented in short, with stress on cooperation in processing of RTK GPS data, and on preparation of data for setting-out with this technique.
Źródło:
Geodezja / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2005, 11, 2; 357-363
1234-6608
Pojawia się w:
Geodezja / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An experimental investigation into the positioning accuracy of low-cost gps receivers in LabVIEW environment
Eksperymentalne badanie dokładności pozycjonowania tanich odbiorników GPS w środowisku LabVIEW
Autorzy:
Pawłowski, E.
Powiązania:
https://bibliotekanauki.pl/articles/266841.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:
GNSS
GPS receiver
positioning accuracy
LabVIEW
GPS
WGS-84
odbiornik nawigacji satelitarnej
dokładność pozycjonowania
Opis:
A major problem in the application of satellite navigation systems is the accuracy of position determination. The manufacturers of navigation receivers use a variety of indicators to describe their accuracy of positioning, which causes difficulty in comparing the parameters of different receivers. This study presents a measurement system that allows for experimental determination of satellite navigation systems positioning accuracy. The main element of the implemented system is an application developed in the LabVIEW which receives navigation data from the receiver, collects the appropriate amount of data, and then calculates selected positioning accuracy indicators and presents them in tabular and graphical form. Then relevant calculation formulas and sample measurement results for selected GPS receiver are presented.
Istotnym problemem w stosowaniu systemów nawigacji satelitarnej jest ich dokładność wyznaczania pozycji geograficznej. Niestety producenci odbiorników GPS stosują różne wskaźniki opisujące dokładność pozycjonowania, co powoduje trudności w porównywaniu parametrów odbiorników różnych firm. Problem ten dotyczy zwłaszcza tanich i łatwo dostępnych odbiorników przeznaczonych do innych celów niż profesjonalna nawigacja, geodezja i zastosowania militarne. Dzięki niskiej cenie i coraz lepszym parametrom odbiorniki takie znajdują liczne zastosowania komercyjne w różnych dziedzinach nauki i techniki oraz w wielu wyrobach powszechnego użytku. W pracy przedstawiono system pomiarowy umożliwiający eksperymentalne wyznaczanie dokładności pozycjonowania takich odbiorników. Głównym jego elementem jest aplikacja opracowana w środowisku LabVIEW, która odbiera dane nawigacyjne w standardzie NMEA z badanego odbiornika, gromadzi ich odpowiednią ilość w pamięci komputera, oblicza wybrane wskaźniki dokładności pozycjonowania oraz przedstawia je w postaci tabelarycznej i graficznej. Zaprezentowano odpowiednie wzory obliczeniowe oraz wyniki pomiarów dla przykładowego odbiornika systemu GPS.
Źródło:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2015, 47; 139-142
1425-5766
2353-1290
Pojawia się w:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Let us prepare the officer of the watch on jamming and spoofing
Autorzy:
Felski, A.
Powiązania:
https://bibliotekanauki.pl/articles/117545.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
watchkeeping
Global Positioning System (GPS)
jamming
spoofing
Officer of the Watch (OOW)
GPS Receiver
GPS Signal
GPS Accuracy
Opis:
The general accessibility and high accuracy of GPS caused that for a dozen or so years it is applied commonly, not only in marine navigation. We can ascertain that in this regard there exists the monopoly. However, now it is apparently that this system can be easily disturbed, what testify numerous reports. The problem has been treated as troubles in land navigation, however nowadays became every-day reality on coastal waters as well, especially on the Mediterranean and Black Seas and Persian Gulf. Officers who survived this tell that the first impulse in such situation is to verify GPS receiver, regardless of the situation around the ship. The concentration of the officer’s attention on the GPS receiver, especially on coastal waters creates the threat for the ship, however in this situation appear other threats which many officers does not associate with GPS. Usually on the present ship GPS receiver is not only the source of positioning information. It is a source of information for many other devices, so inappropriate work of it generates problems with many other processes on the ship. Today question is who on the bridge can notice GPS problems and how? There are receivers which do not inform about the problem, or present not realistic data. Sometimes only ECDIS picture shows some abnormality, for example still the same position while ship is under the way. On the paper the analysis of possibly aspects of the problem is discussed. Presented analysis goes to the conclusion that should be prepared some procedure how to proceed in case of the lack of GPS signals, as well as the watch officer should be prepared to act in such situation. This is a task for marine academies.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 4; 847-851
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efekty nieantenowych rekonfiguracji wyposażenia stacji GPS w Borowcu w obserwowanych współrzędnych
Non-antenna effects of equipment reconfiguration at Borowiec GPS station in observed coordinates
Autorzy:
Lehmann, M.
Jaworski, L.
Powiązania:
https://bibliotekanauki.pl/articles/210973.pdf
Data publikacji:
2010
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
wyposażenie stacji permanentnej GNSS (GPS)
szeregi czasowe współrzędnych
GPS receiver replacement
GNSS (GPS) station coordinate
comparison of time series
Opis:
W pracy przedstawiono analizę wpływu zmian poszczególnych elementów wyposażenia stacji permanentnej IGS "BOR1" w Borowcu na wyznaczane współrzędne. Zmiany objęły następujące elementy: odbiornik, komputer oraz taktowanie odbiornika zewnętrznym wzorcem częstotliwości. Do analizy wykorzystano szeregi współrzędnych stacji w Borowcu zarówno z obliczeń sieci globalnych IGS, jak z własnych z rozwiązań wektorów lokalnych do punktów w Poznaniu (POZN) i Warszawie (CBKA).
The article presents the analysis of influence of different elements of the IGS BOR1 station equipment on computed coordinates. Changes concern the receiver, computer and time oscillator. For analysis we used time series of the BOR1 station coordinates, computed by global Analysis Centres and own solutions for local baselines between two receivers in Borowiec and stations POZN and CBKA.
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2010, 59, 2; 135-143
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie odbiorników nawigacji satelitarnej klasy turystycznej w szczegółowym planowaniu hodowlanym
Autorzy:
Bolibok, L.
Powiązania:
https://bibliotekanauki.pl/articles/1019729.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
bledy pomiarowe
zastosowanie
planowanie hodowlane
nawigacja satelitarna
lesnictwo
odbiorniki GPS
satellite navigation
gps receiver
silvicultural planning
measurement error
Opis:
In detailed silvicultural planning, good knowledge of the internal situation (e.q. placement of advanced regeneration) in stand survey units is necessary. Information gathered in the framework of regular forest survey is not sufficient, specifically when natural stand regeneration is planned. The application of GPS is a practical, inexpensive, quick to operate technology of collecting information required for silvicultural planning and positioning spatial elements of a cutting system. As silviculture needs do not require such a high accuracy as in the case of positioning of stand survey units, it seems that the application of tourist−class GPS receivers is an optimum solution. This class equipment is inexpensive and easy to operate. The knowledge about possibilities which GPS receiver provides on the one hand and the awareness of limitations that forest environment creates for GPS measurements helps make a reliable draft of a stand's internal situation.
Źródło:
Sylwan; 2005, 149, 07; 37-50
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nominal and Real Accuracy of the GPS Position Indicated by Different Maritime Receivers in Different Modes
Autorzy:
Januszewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/117133.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Global Navigation Satellite System (GNSS)
Global Positioning System GPS
Navigational System
Navigational System Receiver
Accuracy of Position
GPS Receiver
GPS Position Accuracy
Dilution of Precision (DOP)
Opis:
Nowadays on the ship’s bridge two or even more GPS receivers are installed. As in the major cases the coordinates of the position obtained from these receivers differ the following questions can be posed – what is the cause of this divergence, which receiver in the first must be taken into account etc. Based on information published in annual GPS and GNSS receiver survey it was estimated the percentage of GPS receivers designed for marine and/or navigation users. The measurements of GPS position based on the four different stationary GPS receivers were realized in the laboratory of Gdynia Maritime University in Poland in the summer 2012. The coordinates of the position of all these receivers were registered at the same time. The measurements in mode 3D were made for different input data, the same for all receivers. The distances between the individual unit’s antenna were considered also. Next measurements in mode 3D also were realized on two ships in different European ports. Additional measurements were made in mode 2D with three receivers for different their’s antenna heights. The results showed that the GPS position accuracy depends on the type of the receiver and its technical parameters particularly.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 11-19
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie sprzętu geodezyjnego do profilowania i kartowania geologicznego na przykładzie KWB Turów
The use of geodetic equipment to the profiling and geological mapping on the example of Turów open cast mine
Autorzy:
Wiśniewski, J.
Dąbrowska, E.
Milkowska-Sidor, E.
Powiązania:
https://bibliotekanauki.pl/articles/169268.pdf
Data publikacji:
2017
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
profilowanie skarp roboczych
kartowanie
tachimetr
odbiornik GPS
pomiar bezlustrowy
profiling working slopes
mapping
total station
GPS receiver
reflectorless measurement
Opis:
Postęp technologiczny i techniczny, a przede wszystkim rozwój informatyczny nastąpił również w geologii górniczej. Przykładem tego są m.in. narzędzia wykorzystywane do prac kartograficznych przez geologów firmy PGE GiEK S.A. O/KWB Turów. W celu usprawnienia prac terenowych i dostosowania ich wyników do cyfrowej obróbki danych wdrożono do użytku zaawansowany sprzęt geodezyjny: odbiornik GPS oraz fototachimetr Leica TS-15. Profilowania i kartowania skarp oraz poziomów roboczych wykonywane są bezpieczniej, szybko i z większą dokładnością. Artykuł omawia etapy zmian metody pomiarów terenowych.
Technological and technical progress and IT development, as also occurred in mining geology, as evidenced by the work of geologist from PGE GiEK S.A. O/KWB Turów. In order to improve fieldwork and adjustment of results to digital data processing implemented for use advanced geodetic equipment: GPS receiver and the Leica TS-15. Profiling and mapping slopes and working levels are exercised safely, quickly and precisely. The article discusses the steps in changing of field measurement method.
Źródło:
Górnictwo Odkrywkowe; 2017, 58, 3; 13-19
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Matlab Implementation of Differential GPS for Low-cost GPS Receivers
Autorzy:
Ali, Q
Montenegro, S.
Powiązania:
https://bibliotekanauki.pl/articles/116127.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
marine navigation
Global Positioning System GPS
Matlab, Differential GPS (DGPS)
GPS Receiver
unmanned aerial vehicle (UAV)
Global Navigation Satellite System (GNSS)
RINEX Format
Opis:
A number of public codes exist for GPS positioning and baseline determination in off-line mode. However, no software code exists for DGPS exploiting correction factors at base stations, without relying on double difference information. In order to accomplish it, a methodology is introduced in MATLAB environment for DGPS using C/A pseudoranges on single frequency L1 only to make it feasible for low-cost GPS receivers. Our base station is at accurately surveyed reference point. Pseudoranges and geometric ranges are compared at base station to compute the correction factors. These correction factors are then handed over to rover for all valid satellites observed during an epoch. The rover takes it into account for its own true position determination for corresponding epoch. In order to validate the proposed algorithm, our rover is also placed at a pre-determined location. The proposed code is an appropriate and simple to use tool for post-processing of GPS raw data for accurate position determination of a rover e.g. Unmanned Aerial Vehicle during post-mission analysis.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 343-350
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time server based on NMEA and SNTP Protocols
Autorzy:
Łukasik, Z.
Nowakowski, W.
Ciszewski, T.
Powiązania:
https://bibliotekanauki.pl/articles/116756.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
time service
NMEA Protocol
SNTP Protocol
time server
time synchronization
Computer Network
GPS receiver
Universal Time Coordinated (UTC)
Opis:
Modern technical ship systems very often use information and communication technologies. One of the basic requirements of these systems is ensuring time synchronization that aim is to coordinate clocks of all devices working in a computer network. This requirement results from, among others, the necessity to log events with a unified timestamp. To achieve this goal, most frequently expensive time servers are used. This article presents an easy method of time synchronization, which can serve as a reserve or alternative solution to the methods currently used. That is why a proprietary software has been developed, allowing to expand the functionality of a PC so that it can operate as a time server. A time reference in proposed solution would be provided by a GPS receiver. The developed application allows, with the use of the NMEA protocol, to synchronize the current time with the GPS receiver and then, with the help of the SNTP protocol, to distribute it to all network devices operating on the ship.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 453-458
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applications of global navigation satellite systems in maritime navigation
Autorzy:
Januszewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/135402.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
GNSS
GPS system
GNSS receiver
shipborne GPS and GNSS receiver
type of GPS and GNSS receivers
maritime navigation
Opis:
Currently (April 2016) uninterrupted information about a ship’s position can be obtained from specialized electronic position-fixing systems, in particular, Satellite Navigation Systems (SNSs) such as GPS and GLONASS and Satellite Based Augmentation Systems (SBASs) such as EGNOS or WAAS. The generic name given to all the above mentioned systems is Global Navigation Satellite Systems (GNSS). Many models, designed for the ship’s bridge and provided by about a dozen manufacturers, are available on the world market. In Europe, one of the most comprehensive sources of knowledge on the global GNSS market is a report published, on average, every 15 months by the European GNSS Agency GSA. Another receiver survey is published each year in the January number of the magazine “GPS World”. The detailed analysis of market report and receiver survey, possible use of EGNOS and Galileo in the maritime market, and different maritime applications of GNSS equipment are described in this paper.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 47 (119); 74-79
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and analysis of spoofing detection algorithms for GNSS signals
Autorzy:
Dobryakova, L.
Lemieszewski, Ł.
Ochin, E.
Powiązania:
https://bibliotekanauki.pl/articles/359990.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
GNSS
GPS
NAVSTAR
GLONASS
Spoofing
Dual-Receiver
Opis:
Many civil GNSS (Global Navigation Satellite System) applications need secure, assured information for asset tracking, fleet management and the like. But there is also a growing demand for geosecurity locationbased services. Unfortunately, GNSS is vulnerable to malicious intrusion and spoofing. How can users be sure the information they receive is authentic? Spoofing is the transmission of matched-GNSS-signalstructure interference in an attempt to commandeer the tracking loops of a victim receiver and thereby manipulate the receiver’s timing or navigation solution. A spoofer can transmit its counterfeit signals from a stand-off distance of several hundred meters or it can be co-located with its victim. Spoofing attacks can be classified as simple, intermediate, or sophisticated in terms of their effectiveness and subtlety. In an intermediate spoofing attack, a spoofer synchronizes its counterfeit signals with the authentic GNSS signals so they are code-phase-aligned at the target receiver. In this paper we consider the anti-spoofing algorithms based on spoofing detection via Dual-Receiver.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 47-52
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł

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